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SESAM
PlateworkStiffened steel plate design
Yield and buckling code-
checks according to
DNV, API and NPD
Platework is an interactive program for code checkingof plane
stiffened steel plate structures based on results
from an FE analysis. The program has features for manual
input of code check data and extensive automatic features
for extraction of such data from FE analyses. It may also be
used as a design tool independently of an FE analysis
The stiffeners can be modelled by beam or plate
elements in the FE analysis. The user may also work
in a mixed mode; using automatic recognition of
plates combined with manual insertion of girders and
stiffeners.
The individual Capacity Models can be assembled
into a stiffened panel called a Capacity Model
Assembly representing a flat, rectangular area with
main girders running parallel to two of the sides in
the rectangle. The stiffeners run in the direction
defined by the two remaining sides in the rectangle,
while the plates occupy the area between the
stiffeners and girders.
Stresses and forces computed in the FE analysis are
automatically transformed into loads consistent with
the code checking principles for each of the capacity
models specified.
A finite element analysis is first carried out to
determine stresses in all locations of the structure.
Platework is then used to code check the plate,
stiffeners and girders of flat rectangular plate areas
by automatically extracting the properties and loads
of the specified plate area. It is also possible to
manually define stiffeners and girders, change the
material and thickness properties, and add in
additional local loads.
The code check features are mainly buckling checks,
with some yield check facilities. Platework is based
on Capacity Model concept using the following
Capacity Model types:
Simple, non-stiffened plate
Stiffener
Girder
Uniaxial stiffened panel
Orthogonal stiffened panel
How Platework is used:
capacity model
stiffenersgirder
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For further information contact your local
DNV office or DNV Software:
Veritasveien 1, N-1322 Hvik, Norway
Tel: +47 67 57 76 50
Fax: +47 67 57 72 72
Email: [email protected]
www.dnv.com/software
SESAM
The following code checks may be performed:
API, DNV, NPD plate yield and buckling
API, DNV, NPD stiffener yield and buckling
API, DNV, NPD girder yield and buckling
API uniaxial stiffened panel buckling
API orthogonal stiffened panel buckling
Loads may be manually defined or changed
Stresses can be automatically extracted from an FEanalysis
A load combination may be specified as acombination of FE
analysis results and manually
defined loads
User control of how moments should be accountedfor in code
checking of stiffeners and girders
Girder and stiffener section data may be changed Plate thickness
may be changed
Materials may be changed
Non-rectangular plate shapes can be stretched intorectangular
shapes through shape idealisation
Print and display of selected results on screen andfile with
several options for sorting and filtering
02.0
1.2
6/Rev.1Example of result presentation
over-utilised
Other Platework features:
