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International Symposium on
Frontiers in Applied Mechanics (ISFAM)
4 – 7 December 2014, Singapore
PROCEEDING
SPONSORS
Association for
Computational Mechanics (Singapore)
1
CONTENTS
Contents………………………………………………………………………………..…1
Greetings from Symposium Chairmen …………………………...........................……...2
Organization Committee………………………….……………………...........................3
International Scientific Committee...……………………………….…………………….4
Symposium Venue……………………………………………….……………………….5
Symposium Hotel………………………………………………….……………………..7
Symposium Information………………………………….………………………………9
Registration and Check-in…………………………..…………………………..9
Registration-Desk Timetable……………………………………………………9
Paper Presentations……………………………………………………………..9
Poster Presentations and Layout………………………………………………..9
Best Poster Prizes for Young Scientists…...……………………………………9
Emergency Phone Numbers…………………………………………………….9
Scientific Program………………………………………………………………………10
Introduction……………………………………………………………………10
Program Overview……………...……………………………………………..11
Technical Sessions…………………………………………………………….12
Poster Section ……………………………………………………….………...38
Moving Around in Singapore……………………………………………….…43
Author Index…………………………………………………………………………….44
2
Greetings from the
Chairmen of the Symposium
Dear Colleagues,
We are pleased to welcome you to the joint International Symposium on Frontiers in
Applied Mechanics (ISFAM 2014) that will take place in Singapore on 4-7 Dec. 2014
(http://www.acmsg.org/ISFAM2014.htm). The symposium follows the style of Gordon
Research Conferences. This major event has been organized by the Association for
Computational Mechanics (Singapore), the International Center for Applied Mechanics
(XJTU, China), the Theoretical and Applied Mechanics Society (Singapore), Department
of Mechanical Engineering (NUS, Singapore), and School of Mechanical and Aerospace
Engineering (NTU, Singapore).
The symposium topics cover most disciplines on the conventional subjects of solid
mechanics and fluid mechanics, as well as current topics associated with applied
mechanics, which covers inter-disciplinary areas such as nanomechanics, biomechanics,
electromechanics, mechanics of advanced materials and soft matter, and numerous other
emerging areas. This symposium aims to cover the recent progress made in all these areas.
Hailing from China, Hong Kong (China), Singapore and Australia, distinguished
scientists, academics, researchers and engineers from over 30 institutions will gather in
Singapore to present their work, and preview the latest developments in the many
different topics on offer. In particular, we also eagerly look forward to the meeting with
old and new colleagues.
We have also planned a welcome reception on Thursday (Dec. 4th
), the banquet on Friday
(Dec. 5th
) and get-together party on Saturday (Dec. 6th
).
Above all, we want to thank you for your participation and contribution to the
symposium and express out best wishes for a fruitful scientific, technical and personal
experience during the four days of the meeting.
Last but not least, we wish you a most enjoyable stay in Singapore.
Your Sincerely,
Zishun LIU
Xi’an Jiaotong University, China;
National University of Singapore, Singapore
Teng Yong NG
Nanyang Technological University, Singapore
3
Organization Committee
Chairmen
Zishun LIU (Xi’an Jiaotong University, China;
National University of Singapore, Singapore)
Teng Yong NG (Nanyang Technological University, Singapore)
Secretary
Fangsen CUI (IHPC, Singapore)
Members
Fangsen CUI (IHPC, Singapore)
Siu-Siu GUO (Xi’an Jiaotong University, China)
Xu HAN (Hunan University, China)
Kian Meng LIM (National University of Singapore, Singapore)
Zishun LIU (Xi’an Jiaotong University, China; National University of Singapore,
Singapore)
Teng Yong NG (Nanyang Technological University, Singapore)
Qing-Xiang PEI (IHPC, Singapore)
Leong Hien POH (National University of Singapore, Singapore)
Zhendong SHA (Xi’an Jiaotong University, China)
Chongmin SHE (Nanjing University of Aeronautics and Astronautics, China)
Shengping SHEN (Xi’an Jiaotong University, China)
Vincent B. C. TAN (National University of Singapore, Singapore)
Yuyong WANG (Portek Systems & Equipment )
George X.G. XU (Parsons Brinckerhoff Pte Ltd, Singapore)
4
International Scientific Committee
Chairmen
Daining FANG (Peking University, China)
Tiejun WANG (Xi’an Jiaotong University, China)
Members
Yumin CHENG (Shanghai University, China)
Qian DING (Tianjin University, China)
Daining FANG (Peking University, China)
Xu GUO (Dalian University of Technology, China)
Xu HAN (Hunan University, China)
Xiqiao FENG (Tsinghua University, China)
Heow Pueh LEE (National University of Singapore, Singapore)
Bin LIU (Tsinghua University, China)
Zishun LIU (Xi’an Jiaotong University, China; National University of Singapore)
Shengping SHEN (Xi’an Jiaotong University, China)
Somsak Swaddiwudhipong (National University of Singapore, Singapore)
Biao WANG (Sun Yat-Sen University, China)
Tiejun WANG (Xi’an Jiaotong University, China)
Yueguang WEI (Institute of Mechanics, Chinese Academy of Sciences, China)
Yong-Wei ZHANG (IHPC, Singapore)
5
Symposium Venue
The symposium facilities are located in the Holiday Inn Singapore Atrium
(http://holiday-inn-atrium.singaporehoteltour.net)
The Holiday Inn Atrium Singapore is situated in the center of Singapore. The hotel is
perfectly located close to Tiong Bahru subway station. The business hotel is situated
500m away from Singapore River, National Museum of Singapore and Chinatown,
within walking distance
A short drive from Changi airport.
Location Map
6
Venue Gallery
7
Symposium Hotel
The symposium hotel is the same with symposium venue, i.e., Holiday Inn Singapore
Atrium (http://holiday-inn-atrium.singaporehoteltour.net), located in 317 Outram Rd,
Singapore 169075.
How to Arrive to Holiday Inn Singapore Atrium
By MRT
Following the dotted black line from CG2(Changi Airport)---EW4(Tanah Merah)---
EW17(Tiong Bahru), Exit B.
Then walk as follow:
8
By bus
By taxi
Changi International Airport is just a 25-minutes drive from Holiday Inn Singapore
Atrium.
9
Symposium Information
Registration and Check-in
All attendees are required to check in at the registration desks, located at the lobby of the
Holiday Inn Singapore Atrium.
Registration-Desk Timetable
Dec. 4th
from 2:00 p.m. to 6:00 p.m.
Dec. 5th
from 8:00 a.m. to 6:00 p.m.
Identification Badge
Participants are reminded to wear name badges at all times while in the symposium area
or at symposium-sponsored events. Access will be prohibited to the exhibit, break and
technical session areas if a name badge is not visible.
Paper Presentations
Oral Presentation-Time and Equipment
Opening Lecturer
Closing Lecturer
Invited presentation (10 ~ 15 minutes each). Time includes Q&A.
The symposium will provide computes for presentations.
Poster Presentations and Layout
Posters will be displayed in two Poster Session on Dec. 5th
9:00 a.m. and 3:30 p.m.
This will give posters a high visibility among the participants in the symposium, and will
provide time for poster viewing and interaction between poster and conference attendees.
The poster size should be A0.
Best Poster Prizes for Young Scientists
The best poster prize will be awarded for outstanding poster by young scientists. The
winners will be announced at the closing ceremony of the symposium.
Emergency Phone Numbers
Ambulances: 112 Fire Department: 995 Police: 999
10
Scientific Program
Introduction
The scientific program consists of plenary opening, closing lectures, and invited talks
presented in seminar presentation sessions.
The symposium topic cover most disciplines on the applied mechanics in a broad number
of areas in engineering and applied sciences. There will be 11 sessions and poster
presentation.
Program Overview
11
12
Technical Sessions
List of Sessions
S01 The mechanics of biological materials, bio-inspired materials and biological
cells
S02 The mechanics of soft matter and soft machines
S03 Lightweight materials and structures
S04 Biomechanics and related advanced applications
S05 Gradient-enhanced plasticity models and non-homogeneous materials
S06 The mechanical and physical behaviors of nanomaterials
S07 Multiscale materials modeling
S08 Analytical and numerical simulation methods
S09 Bio-integrated flexible sensors and mechanics of stretchable electronics
S10 Fluid mechanics
S11 New topics related to applied mechanics
13
4/12/2014
8:00-18:00
Holiday Inn Singapore Atrium
Registration and Check in
4/12/2014
18:00-21:00
Holiday Inn Singapore Atrium
Welcome Reception
5/12/2014
8:00-10:00
Holiday Inn Singapore Atrium
8:00-8:10 Opening ceremony
Zishun LIU
8:10-8:30 Welcome Addresses
Daining FANG
Tiejun WANG
Teng Yong NG
8:30-9:00 Opening Lecturer
9:00-10:00 Coffee break & Posters Presentation
14
5/12/2014
10:00-12:30
Holiday Inn Singapore Atrium
S01 The mechanics of biological materials, bio-inspired materials and
biological cells
S01-01
Invited Talk
Multiscale Mechanics of Biological Materials
Xiqiao FENG
Institute of Biomechanics and Medical Engineering
Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
S01-02
Invited Talk
Bio-Inspired Mechanics and Materials
Haimin YAO
Department of Mechanical Engineering
The Hong Kong Polytechnic University, Hong Kong SAR, China
S01-03
Invited Talk
On The Biphasic Features of Cell Mechanosensing at Different Scales
Baohua JI
Biomechaics and Biomaterials Lab, Department of Applied Mechanics, School of
Aerospace Engineering
Beijing Institute of Technology, Beijing, China
S01-04
15
Invited Talk
Cellular Dynamics in Response to Mechanical Stimuli
Jin QIAN
Department of Engineering Mechanics, School of Aeronautics and Astronautics,
Zhejiang University, Hangzhou, China
S01-05
Invited Talk
Dynamics and Control in Biology System
Ying WU
State key Laboratory for strength and Vibration , School of Aerospace，Xi'an Jiaotong
University
[email protected]; [email protected]
Lunch
16
5/12/2014
14:00-16:15
Holiday Inn Singapore Atrium
S02 The mechanics of soft matter and soft machines
S02-01
Invited Talk
Mechanics of Soft Machines and Soft Materials
Zishun LIU
International Center for Applied Mechanics; State Key Laboratory for Strength and
Vibration of Mechanical Structures, Xi’an Jiaotong University, China
S02-02
Invited Talk
Mechanics of Soft Active Materials and Structures
Shaoxing QU
Department of Engineering Mechanics, Zhejiang University
S02-03
Invited Talk
A Micro-Macro Model for Constitutive Behavior of Niti Shape Memory Alloys and
Applications
Xianghe PENG
College of Aerospace Engineering, Chongqing University, China
S02-04
Invited Talk
Constitutive Modeling of Hyperelastic Composites
17
Zaoyang GUO
Institute of Solid Mechanics, Beihang University, Beijing, CHINA
S02-05
Invited Talk
Mechanics of confined semiflexible polymers
Jizeng WANG
Key Laboratory of mechanics on Disaster and Environment in Western China, Ministry
of Education,Civil Engineering and Mechanics, Lanzhou University, Lanzhou, Gansu
730000, China
S02-06
Invited Talk
Mechanical Properties’ Influence on Polymer Scratch Behavior: Experimental
Study and Mechanisms Analysis
Han JIANG
School of Mechanics and Engineering, Southwest JIAOTONG University, China
15:30-16:15 Coffee break & Posters Presentation
18
5/12/2014
16:15-18:00
Holiday Inn Singapore Atrium
S03 Lightweight materials and structures
S03-01
Invited Talk
Plasticity and Structural Analysis of Lightweight Sandwich Structures
Tiejun WANG
State Key Laboratory for Strength and Vibration of Mechanical Structures, School of
Aerospace Engineering, Xi'an Jiaotong University, China
S03-02
Invited Talk
Dynamic Behavior and Energy Absorption of Metallic Lattice Materials
Daining FANG
State Key Laboratory for Turbulence and Complex Systems, College of Engineering
Peking University, Beijing 100871, China
S03-03
Invited Talk
Crashworthiness Optimization of Vehicles and Components under Impact Loadings
Xu HAN
College of Mechanical and Vehicle Engineering, Hunan University, China
S03-04
Invited Talk
Cellular Materials and Structures under Impact and Blast Loading
19
Guoxing LU
School of Mechanical and Aerospace Engineering
Nanyang Technological University, Singapore 639798
S03-05
Invited Talk
Thermal Characterization of Silica Aerogels and 2d Materials via Molecular
Dynamics Simulation
Teng Yong NG
School of Mechanical and Aerospace Engineering
Nanyang Technological University, Singapore
S03-06
Invited Talk
Theoretical Modeling of Interlaminar Stress Prediction and Computer Simulation
of Delamination in Laminated Composite Plates
Guangyu SHI
Department of Mechanics, Tianjin University, Tianjin 300072, China
S03-07
Invited Talk
Mechanics of Progressive Damage in Fiber-Reinforced Composites
T. E. TAY
Department of Mechanical Engineering
National University of Singapore, Singapore
Banquet
20
6/12/2014
8:00-10:00
Holiday Inn Singapore Atrium
S04 Biomechanics and related advanced applications
S04-01
Invited Talk
Research at the Interface of Mechanics and Medicine – Otolaryngology and Head
Injury Studies
Heow Pueh LEE
Department of Mechanical Engineering, National University of Singapore, Singapore
S04-02
Invited Talk
Computational Modeling of Bone Fracture Healing by Using the Theory of Porous
Media
Lihai ZHANG
The Department of Infrastructure Engineering, The University of Melbourne, Australia
S04-03
Invited Talk
Design and Development of Medical Devices Using Modeling and Simulations
Fangsen CUI
Institute of High performance Computing, A*STAR, Singapore
S04-04
Invited Talk
Investigation on Biomechanical Assessment for Fracture Healing of Long Bones
Gongfa CHEN
School of Civil and Transportation Engineering,
Guangdong University of Technology, Guangzhou, 510006, China
Coffee break
21
6/12/2014
10:00-12:30
Holiday Inn Singapore Atrium
S05 Gradient-enhanced plasticity models and non-homogeneous
materials
S05-01
Invited Talk
Computational Gradient Enhanced Plasticity
Somsak Swaddiwudhipong
Department of Civil and Environmental Engineering, National University of Singapore
S05-02
Invited Talk
An Interaction Energy Integral Method for the Crack Problems in
Nonhomogeneous Materials Containing Interfaces
Licheng GUO
Department of Astronautic Science and Mechanics, Harbin Institute of Technology
S05-03
Invited Talk
A Consistent Scale Transition of A Higher Order Plasticity Model from Meso to
Macro
Leong Hien POH
Department of Civil and Environmental Engineering, National University of Singapore
S05-04
Invited Talk
Thermoelastic Contact Mechanics of Functionally Graded Materials
Liao-Liang KE
Institute of Engineering Mechanics, Beijing Jiaotong University, Beijing, China
Lunch
22
6/12/2014
14:00-16:30
Holiday Inn Singapore Atrium
S06 The mechanical and physical behaviors of nanomaterials
S06-01
Invited Talk
Mechanical Behavior of Nano-Materials
Pengfei HE
School of Aerospace Engineering and Applied Mechanics
Tongji University, Shanghai, China
S06-02
Invited Talk
Mechanical Properties and Fracture Behavior of Graphene and Other 2d Materials
Qing-Xiang PEI
Institute of High Performance Computing, A*STAR, Singapore
S06-03
Invited Talk
Tip-Induced Plastic Deformation at Heterogeneous Polymer Surface during Atomic
Force Microscopy Sensing
Yong-Wei ZHANG
Institute of High performance Computing, A*STAR, Singapore
S06-04
Invited Talk
Improved Mechanical Properties of Metallic Glasses
23
Zhendong SHA
International Center for Applied Mechanics, State Key Laboratory for Strength and
Vibration of Mechanical Structures, Xi’an Jiaotong University, Xi’an 710049, China
S06-05
Invited Talk
A New Elastic Theory for Nanomaterials and Its Applications
Shaohua CHEN
LNM, Institute of Mechanics, Chinese Academy of Sciences, Beijing, 100190, China
S06-06
Invited Talk
Effects of Defects and Temperature on the Structural and Mechanical Properties of
Graphene
Kun ZHOU
School of Mechanical and Aerospace Engineering
Nanyang Technological University, Singapore
S06-07
Invited Talk
First-Principles Studies of Formaldehyde and Lithium Interaction with Silicon
Carbide Nanotubes
Xiao WANG
School of Science, East China University of Science and Technology,
Shanghai, China
S06-08
Invited Talk
24
Tensile Stress Driven Wrinkle Pattern on Nanofibler
Shan TANG
Department of Engineering Mechanics, Chongqing University, China
S06-09
Invited Talk
Pull-Out Force Predictions of Carbon Nanotubes from Polymer and Ceramic
Matrices
Ning HU
College of Aerospace Engineering, Chongqing University, China
Coffee break
25
6/12/2014
16:30-18:00
Holiday Inn Singapore Atrium
S07 Multiscale materials modeling
S07-01
Invited Talk
Multiscale Materials Modeling
Vincent, Beng Chye TAN
Department of Mechanical Engineering, National University of Singapore, Singapore
S07-02
Invited Talk
Numerical Simulation for Materials with Irregular Meso Structures
Liqun TANG
School of Civil Engineering and Transportation, State Key Laboratory of Subtropical
Building Science, South China University of Technology, Guangzhou, China
S07-03
Invited Talk
Trans-Scale Mechanics of Solids and Structures
Yueguang WEI
State-Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy
of Sciences, Beijing, China
S07-04
Invited Talk
Manipulating Electronic Properties of Functional Materials by Mechanical Loading
26
Biao WANG
Sino-French Institute of Nuclear Engineering and Technology,
Sun Yat-sen University, Guangzhou, China
S07-05
Invited Talk
Chemomechanics: Theory, Variational Principles, and Applications
Shengping SHEN
State Key Laboratory for Strength and Vibration of Structures, School of Aerospace
Xi’an Jiaotong University
Get-together Party
27
7/12/2014
8:00-10:00
Holiday Inn Singapore Atrium
S08 Analytical and numerical simulation methods
S08-01
Invited Talk
Super Large Multiscale Finite Element Method
Bin LIU
AML, CNMM, Department of Engineering Mechanics, Tsinghua University, Beijing
100084, China
S08-02
Invited Talk
An Efficient Improved Algorithm for Finite Particle Method
Fei XU
Department of Aeronautical Structural Engineering
Northwestern Polytechnical University, Xi’an, China
S08-03
Invited Talk
The Complex Variable Element-Free Galerkin Method for Nonlinear Problems
Yumin CHENG
Shanghai Institute of Applied Mathematics and Mechanics,
Shanghai University, Shanghai, China
S08-04
Invited Talk
Research Advances of Eigenelement Method for Periodical Composite Structures
28
Y. F. XING
Institute of Solid Mechanics, Beihang University (BUAA), Beijing 100191, China
S08-05
Invited Talk
Doing Topology Optimization Explicitly and Geometrically: A New Moving
Morphable Components Based Framework
Xu GUO
Department of Engineering Mechanics, Dalian University of Technology
Coffee break
29
7/12/2014
10:00-12:30
Holiday Inn Singapore Atrium
S09 Bio-integrated flexible sensors and mechanics of stretchable
electronics
S09-01
Invited Talk
Bio-Integrated Flexible Sensors for Health Monitering: Fabrication, Integration and
Characterization
Xue FENG
Department of Engineering Mechanics, Tsinghua University, China
S09-02
Invited Talk
Mechanics of Thin Film and Stretchable Electronics
Jizhou SONG
Department of Engineering Mechanics
Zhejiang University, Hangzhou, Zhejiang 310027, China
S09-03
Invited Talk
Development of ZnO Thin film Micro-sensor and Micro-actuator For Smart Sliders:
Force Sensing and Nano-actuation
H. J. DU
School of Mechanical and Aerospace Engineering
Nanyang Technological University, Singapore
30
S09-04
Invited Talk
Wave Characteristics in Chiral Lattice with Local Resonator
Gengkai HU
School of Aerospace Engineering, Beijing Institute of Technology
S09-05
Invited Talk
On Elastic Stress Waves in the Impacted Plates
Zhanfang LIU
College of Aerospace Engineering, Chongqing University, China
S09-06
Invited Talk
Dynamic Bearing Characteristics of Elastic Ring Squeeze Film Damper: Pressure
Distribution, Ring Deformation and Contacts
Qian DING
Department of Mechanics, Tianjin University, China
S09-07
Invited Talk
Probabilistic Analysis of Structural Members under Stochastic Loadings
Siu-Siu GUO
International Center for Applied Mechanics, Xi’an Jiaotong University, China
Lunch
31
7/12/2014
14:00-14:15
Holiday Inn Singapore Atrium
S10 Fluid mechanics
S10-01
Invited Talk
Flow Supercavitation
Boo Cheong KHOO
Department of Mechanical Engineering,
Temasek Laboratories, National University of Singapore, Singapore
S10-02
Invited Talk
Mesoscopic Method for Fluid Flow Simulations
Yuehong QIAN
Institute of Applied Mathematics and Mechanics, Shanghai University, China
32
7/12/2014
14:15-17:30
Holiday Inn Singapore Atrium
S11 New topics related to applied mechanics
S11-01
Invited Talk
Ratchetting of Engineering Materials: Experimental Observations and Constitutive
Models
Guozheng KANG
School of Mechanics and Engineering, Southwest Jiaotong University, Chengdu, P.R.
China
S11-02
Invited Talk
Calibration of Small Length Coefficient of Nonlocal Beam Theory via
Microstructured Beam Model for Buckling and Vibration
C. M. WANG
Engineering Science Programme and Department of Civil and Environmental
Engineering, National University of Singapore, Singapore
S11-03
Invited Talk
Acoustic Radiation Force in Microfluidics
Kian-Meng LIM
Department of Mechanical Engineering, National University of Singapore, Singapore
S11-04
33
Invited Talk
Damage Tolerance and Fracture Property of Intergral Structure
YuE MA
Department of Aeronatical Structural Engineering, School of Aeronautics,
Northwestern Polytechnical University, Xi’An, China
S11-05
Invited Talk
Modelling of Discontinuous Medium with Discrete Fracture Networks
Guowei MA
School of Civil, Environmental and Mining Engineering
The University of Western Australia, WA 6009, Australia
S11-06
Invited Talk
Modified Models for Small Contacts
Pin LU
School of Materials Science and Engineering, Hefei University of Technology, China
Coffee break
S11-07
Invited Talk
Three-Dimensional Stress Fields Near Cracks and A Tz-Based Equivalent
Thickness
Chongmin SHE
34
State Key Laboratory of Mechanics and Control of Mechanical Structures, Key
Laboratory for Intelligent Nano Materials and Devices of the Ministry of Education,
Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
S11-08
Invited Talk
Mechanical-Electric Behaviors of Multi-Stage Twisted Superconducting Wires and
Cables
Yuanwen GAO
Department of Mechanics and Engineering Science, College of Civil Engineering and
Mechanics, Lanzhou University, Lanzhou, Gansu 730000, PR China
S11-09
Invited Talk
Modeling of the Reversible Effect of the Axial Strain on the Critical Current of
Superconducting REBCO Films
Xiao-Fan GOU
Department of Engineering Mechanics, College of Mechanics and Materials, Hohai
University, Nanjing, Jiangsu 210098, P. R. China
[email protected]; [email protected]
S11-10
Invited Talk
Active Aeroelastic Control Law Design Method
Gang CHEN
State Key Laboratory for Strength and Vibration of Mechanical Structures, School of
Aerospace, Xi’an Jiaotong University, Xi’an, China, 710049
35
S11-11
Invited Talk
Green’s Functions of the Forced Vibration of Timoshenko Beams with Damping
Effect
X.Y. LI
School of Mechanics and Engineering, Southwest Jiaotong University, Chengdu, China
Abstract:
Our work is concerned with the dynamic solutions for forced vibrations of Timoshenko
beams in a systematical manner. Damping effects on the vibrations of the beam are taken
into consideration by introducing two characteristic parameters. Laplace transform
method is applied in the present study and corresponding Green's functions are presented
explicitly for beams with various boundaries. The present solutions can be readily
reduced to those for others classical beam models by setting corresponding parameters to
zero or infinite. Numerical calculations are performed to validate the present solutions
and the effects of various important physical parameters are investigated.
S11-12
Invited Talk
Effects of Flexoelectricity and Surface in Nano-Structures
Shuling HU, Xu LIANG
State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi'an
Jiaotong University, Xi’an, 710049, People’s Republic of China
Abstract:
Flexoelectricity and surface play essential roles in determining the electromechanical
behavior of nano scaled smart structures. Flexoelectric effect refers to the phenomenon
that strain gradient induces electric polarization in solids, which has been found in
presence of strong size-dependent electromechanical coupling response.And surface
elasticity and piezoelectricity affect the effective elastic and electromechanical coupling
coefficients. The effects of flexoelectricity and surface on electromechanical coupling
response of nano scaled structures are investigated, the modified boundary conditions due
to surface and flexoelectricity and generalized Young-Laplace equations for beam models
are derived from avariation principle. Surface elasticity plays an important role in
determining the bending rigidity of elastic beams while the residual surface stresses
influence the precise calculation of the deflection of nano beams. Surface piezoelectricity
and flexoelectricity dramatic enhanced the effective electromechanical coupling
coefficient, which impliesanew promise for energy harvester and sensors. A direct
approach for measurement of the transverse flexoelectric coefficient is also proposed.
Based on the measured electric charges and applied forces, a large flexoelectric
36
coefficient is obtained for unpoled PVDF trapezoid block. This work indicates the
potential application of flexoelectricity in NEMS and MEMS.
S11-13
Invited Talk
Crack Propagation of Single Edge Crack in Graphene Sheets under Tension
Jun HUA, Qinlong LIU
Department of Mechanical Engineering, Xi'an University of Architecture and
Technology, Xi'an, 710055, PR China
Abstract:
Molecular dynamics simulation is used to study the crack propagation in pre-cracked
single layer armchair graphene sheets under tension with constant strain rate. It is found
that the stress intensity factor is 123.2MPa m . The limit crack speed of grephene is 8400
m/s, while the crack speed is not a constant. The crack speed depends on the initial crack
length and the strain rate. The shorter the initial crack length, the faster the crack speed.
Higher strain load rate can improve the crack speed, but the maximum speed can’t exceed
the limit speed.
S11-14
Invited Talk
Microscopic Approach to Brittle Fracture in Complex Microstructures
Wei ZHOU
School of Mechanical & Aerospace Engineering, Nanyang Technological University, 50
Nanyang Avenue, Singapore 639798
Abstract:
Catastrophic failure of structures is always a potential engineering problem. Considerable
effort has been directed towards the development of satisfactory fracture criteria to enable
engineers to design confidently against such possible failures. Fracture mechanics has
provided some basis for engineering design; however, it is a macroscopic approach and
cannot explain why some materials possess better fracture toughness than others in terms
of their microstructures and thus cannot provide a basis for developing better materials or
improving manufacturing processes. The understanding of the microscopic process of
fracture is needed to formulate local fracture criteria. The presentation will be made on
the speaker’s own researches dealing with micromechanisms of brittle fracture in a wide
range of materials, including HY steel used in the hull of British submarine, Ni-Cu
alloyed steel used in German nuclear pressure vessel, and ultrahigh strength armour steel
used in the modern infantry fighting vehicle. The focus will be placed on illustrating the
37
methodology of research rather than the experimental details. The microscopic approach
can help to understand many “unusual” fracture phenomena, e.g., why a material with
high fracture toughness KIc may be in fact very brittle and why embrittled heat-affected
zone in a welded joint could display, in contrast to common expectation, much higher
Charpy impact energy than the weld metal and parent material.
S11-15
Invited Talk
Recent Developments in Abaqus and the SIMULIA Portfolio
Clive FORD
Advanced Analysis Consultancy group, WorleyParsons Pte Ltd. Singapore
Abstract:
The talk will look at some of the significant new mechanics capabilities in Abaqus 6.14
and the exciting simulation tools now available to academia through the new extended
token packaging which provides access to a wider range of products in the SIMULIA
Portfolio, including Isight, Tosca and fe-safe.
Clive FORD is the Manager of the Advanced Analysis Consultancy group in Singapore.
Clive joined WorleyParsons in 2002 and been actively involved in supporting simulation
in diverse industries; including biomedical, electronics, aerospace and offshore. Prior to
joining WorleyParsons, Clive worked in a variety of engineering roles at Corus Group in
the UK. This included plant condition monitoring, commissioning and latterly the
development of a virtual rolling mill based around Abaqus, to facilitate the development
of new steel products. Clive holds a Bachelor of Mechanical Engineering from the
University of Sheffield and a Masters in IT from the University of Nottingham. He is a
member of the local branch committee for the Institution of Mechanical Engineers in
Singapore and is active in promoting engineering simulation as an exciting career as well
as its benefits to industry.
7/12/2014
17:30-18:00
Holiday Inn Singapore Atrium
17:30-18:00 Closing Lecture
17:30-18:00 Closing ceremony
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Poster Section
Posters will be displayed in two Poster Session on Dec. 5th
9:00 a.m. and 3:30 p.m.
P01
Mechanical Properties of Bombyx mori Silk Fibroin via Molecular Simulations
Yuan CHENG, Yong-Wei ZHANG
Institute of High Performance Computing, A*STAR, Singapore 138632
Keywords: Silk fibroin; Molecular dynamics simulation; Water effect; Mechanical
property
Abstract:
Silk fibroin has attracted great attention due to its superior mechanical properties such as
ultra-high stretchability, strength, and biocompatibility. In this study, we perform
molecular dynamics simulations on β-sheet crystallite of Bombyx mori silk by pulling
out β-chains at different locations from the crystallite with/without water solvent.
Different behaviors of hydrogen bonds in vacuum and in water were examined by
carrying out long time equilibrium molecular dynamics simulation. It was found that
water greatly weakens the strength of silk fibroin. The ultimate tensile force for pulling
out a β-chain from a crystallite unit is strongly chain-location-dependent.
P02
Behavior of Carbon Nanotubes
Pengfei HE, Cong FENG
School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai,
China
Keywords: Carbon Nanotubes; Spring Stiffness; Structural Stability; Nanospring;
Diffusion Behavior; Binding Stability
Abstract:
The spring stiffness and structural stability of carbon nanotube based nanospring and
nanospring have been studied. The Young’s modulus of nanoring with defects is found to
be around 282GPa, the spring stiffness is below 2.08 N/m and is nonlinear and decreases
with increasing relative elongation. The diffusion behavior and binding stability of Pt
clusters on well-aligned carbon nanotubes (WACNT) was also studied. Two main
advantages of WACNTs, which make WACNT a better catalyst (Pt) carrier, were
identified, 1) greater binding energy between Pt cluster and WACNT, 2) uniform
dispersion distribution for Pt clusters on the surface of WACNT.
39
P03
Numerical Investigation of Heat Transfer in Steam Pipeline of Cargo Heating
System
Jiahua HONG, Hua LI, Hui TANG, Songyuan YANG
School of Mechanical & Aerospace Engineering, Nanyang Technological University, 50
Nanyang Avenue, Singapore 639798
Keywords: Steam Pipeline; Heat Transfer; Mixture Model; Two-Phase Flow;
Condensation
Abstract:
The heat and mass transfer of steam pipeline is investigated for cargo oil tanker, which
requires a lot of fuel to heat oil, and it is accomplished by transport of steam from boiler
to tanks. However, since pipelines are installed on deck, the steam transportion is
associated with vast energy loss, which increases fuel consumption. In order to reduce
fuel consumption, it is necessary to understand the heat loss of pipelines. A
computational fluid dynamics framework is built to simulate the two-phase flow and heat
transfer inside steam pipeline, via a mixture model for two-phase flow and a
condensation model for heat and mass transfer in phase change process. Numerical
studies are conducted to study the effects of wind speed and insulation.
P04
Modeling and Simulation of the Phase Transition Phenomenon in Photo-Thermal
Sensitive Hydrogels
William TOH, Teng Yong NG, Zishun LIU
School of Mechanical and Aerospace Engineering, Nanyang Technological University,
50 Nanyang Avenue, Singapore 639798, Singapore
International Center for Applied Mechanics, State Key Laboratory for Strength and
Vibration of Mechanical Structures, Xi’an Jiaotong University, Xi’an, 710049, People’s
Republic of China
Keywords: Photo-Thermal Sensitive Hydrogel; Phase Transition; Finite Element
Simulation
Abstract:
Possessing the ability to undergo large magnitudes of deformation under incremental
changes in environmental and physical stimulus, most hydrogels undergo a volumetric
phase transition in the process of undergoing large deformation. In this work, a
thermodynamic model accounting for the large deformation mechanics is presented and
applied to investigate the effects of various factors, such as chemical potential,
40
temperature, light intensity and stress, on the phase transition of the gel. In addition, a
finite element material model is developed using commercial finite element software
ABAQUS and user-defined subroutine UHYPER. The effect of light on photo-thermal
hydrogels is studied in several situations, including shrinking-induced buckling, phase
co-existence and application in microfluidic valves.
P05
Modelling and Simulations for Inhomogeneous Deformation of Thermo-Responsive
Hydrogel
Zhiwei DING
Institute of High Performance Computing, A*STAR, Singapore 138632
Keywords: Transient Analysis; Selling Dynamics; Thermo-Responsive; Temperature-
Sensitive; Finite Element Method; Non-Linear Large Deformation
Abstract:
The kinetics deformation of temperature-sensitive hydrogel consists of polymer chains
stretching, diffuse of solvent molecule, and heat transfer process. In this study, static and
dynamic deformation theory are formulated and developed. Finite element methods are
proposed and implemented to perform static and transient analysis of deformation
process. Numerical results are compared with analytical solution and available
experimental results to verify the correctness of our approaches. They are in good
agreement. Examples are provided to investigate and illustrate the potential applications
of our methods to explain complex phenomena including bifurcation, buckling of
membrane.
P06
Fatigue Reliability Assessment of a Complex Welded Structure Subjected to
Multiple Cracks
Wei HUANG, Yongwei ZHANG, Y. Garbatov, C. Guedes Soares
Department of Engineering Mechanics, Institute of High Performance Computing,
Singapore
Centre for Marine Technology and Engineering, Instituto Superior Técnico, Technical
University of Lisbon
Keywords: Fatigue Reliability; Multiple Site Crack; Fracture Mechanics; Fatigue Crack
Growth
Abstract:
41
A probabilistic based approach is presented for the fatigue reliability assessment of a ship
structure during service life with respect to the growth of multiple site cracks. There are
multiple through thickness fatigue cracks initiated and propagated at the critical welded
joints in a stiffener-frame structure under fatigue loading. Accounting for correlated
effects caused by multiple fatigue cracks, stress intensity factors for each crack are
calculated during the process of fatigue crack propagation. The probabilistic models for
fatigue crack propagation were developed based on the Paris law. . Reliability based risk
assessment for this stiffener-frame welded structure is performed based on failure
probabilities and probabilities of detection for cracks. During the service life, the change
of the risk degree of each failure mode can be observed directly.
P07
Simulation Based Design and Development of Implantable Cardiovascular Devices
Gideon Praveen Kumar, Fangsen Cui, Foad Kabinejadian, Boyang Su, Jimmy Hon
Kim Fatt, Hwa Liang Leo
Institute of High Performance Computing, A*STAR, Singapore
National University of Singapore, Singapore
National University Hospital, Singapore
National Heart Centre, Singapore
Abstract:
The Simulation Based Design is being used for applications ranging from deployment of
medical devices inside the body to use of advanced support systems outside the body.
Specifically, the usage of Computational Fluid Dynamics and Computational Solid
Mechanics enhances stent and heart valve research and has become indispensable. We
have been using CSM to study the effects of material choice, design features etc on the
mechanical behaviour of stents, and CFD to evaluate the hemodynamics after implanting
cardiovascular devices. Here we give a broad overview of what we have achieved in our
awarded projects.
P08
Superposition Method for Heat Transfer in Printer
Yong JIANG, Qingxiang PEI, Ping LIU, Narayanaswamy Sridhar
Department of Engineering Mechanics, Institute of High Performance Computing, 1
Fusionopolis Way, Connix, Singapore 138632
Keywords: Superposition Method; Data Map; Temperature Field; Printer
Abstract:
42
Finite element method (FEM) is used to simulate the temperature field in the thermal
printer. The result of FEM is in good agreement with the experimental result. However, it
is very computationally expensive. In order to reduce the time cost, superposition method
is adopted. Five representative elements are selected to represent elements at different
locations to produce data maps. In the superposition method, we just have to read the
appropriate data from the data maps and make summation. The calculation is simplified
and the efficiency is improved greatly. The result agrees well with the experimental result.
P09
A Multiscale Approach to Molecular Dynamics Modelling of Transdermal Drug
delivery
Jingjie YEO
Institute of High Performance Computing, 1 Fusionopolis Way, #16-16 Connexis,
Singapore 138632
Email: [email protected]
Keywords: A Multiscale Approach; Molecular Dynamics; Transdermal Drug delivery
Abstract:
Topical drug application onto the skin is a common method to enhance the skin’s
characteristics. Green tea extracts, such as epigallocatechin-3-gallate (EGCG), were
reported to be extremely beneficial, having anti-oxidating and wound-healing properties.
This study aims to model the diffusion and penetration of small molecules such as cell-
penetrating proteins into the skin’s lipid bilayers. Detailed understanding of these
processes could lead to enhanced transdermal delivery of drugs which are not as
permeable, such as EGCG. Due to the extremely lengthy time- and length-scales involved,
the problem is tackled in different ways, using molecular dynamics, replica exchange,
and coarse-graining.
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Moving Around in Singapore
Singapore has an excellent public transport network.
MRT
(http://www.lta.gov.sg/content/dam/ltaweb/corp/PublicTransport/img/Train%20System%
20Map%20Aug%202014%20large.jpg)
Bus
For details, please refer to SBS Transit website (http://www.sbstransit.com.sg)
Taxi
Starting price is around $S (Singapore dollars) 2.8 or $S 3.2, depending on the different
type of vehicle. For example, the price will be around $S 40 across east to west of
Singapore. But at the peak hour, 50% will be extra in charged.
We acknowledge support from the following sponsor:
Cover and website picture: courtesy of Singapore Tourist Board
44
Author Index
CHEN Gang 34
CHEN Gongfa 20
CHEN Shaohua 23
CHENG Yuan 38
CHENG Yumin 4, 27
CUI Fangsen 3, 20, 41
DING Qian 4, 30
DING Zhiwei 40
DU H. J. 29
FANG Daining 4, 13, 18
FENG Cong 38
FENG Xiqiao 4, 14
FENG Xue 29
FORD Clive 37
GAO Yuanwen 34
GOU Xiao-Fan 34
GUO Licheng 21
GUO Siu-Siu 3, 30
GUO Xu 4, 28
GUO Zaoyang 17
HAN Xu 3, 4, 18
HE Pengfei 22, 38
HONG Jiahua 39
HU Gengkai 30
HU Ning 24
HU Shuling 35
HUA Jun 36
HUANG Wei 40
JI Baohua 14
JIANG Han 17
JIANG Yong 41
KANG Guozheng 32
KE Liao-Liang 21
KHOO Boo Cheong 31
KUMAR Gideon Praveen 41
LEE Heow Pueh 4, 20
LI X. Y. 35
LIM Kian-Meng 32
LIU Bin 4, 27
LIU Zhanfang 30
LIU Zishun 2, 3, 4, 13, 16, 39
LU Guoxing 19
LU Pin 33
MA Guowei 33
MA YuE 33
NG Teng Yong 2, 3, 13, 19, 39
PEI Qing-Xiang 3, 22
PENG Xianghe 16
POH Leong Hien 3, 21
QIAN Jin 15
QIAN Yuehong 31
QU Shaoxing 16
SHA Zhendong 3, 23
SHE Chongmin 3, 33
SHEN Shengping 3, 4, 26
SHI Guangyu 19
SONG Jizhou 29
Swaddiwudhipong Somsak 4, 21
TAN Vincent, Beng Chye 25
TANG Liqun 25
TANG Shan 24
TAY T. E. 19
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TOH William 39
WANG Biao 4, 26
WANG C. M. 32
WANG Jizeng 17
WANG Tiejun 4, 13, 18
WANG Xiao 23
WEI Yueguang 4, 25
WU Ying 15
XING Y. F. 28
XU Fei 27
YAO Haimin 14
YEO Jingjie 42
ZHANG Lihai 20
ZHANG Yong-Wei 4, 22
ZHOU Kun 23
ZHOU Wei 36
In cooperation with
Dassault Systèmes SIMULIA
