A. DATA PERENCANAAN

x yTitik A1 1 1Titik A2 6 1Titik A3 6 6Titik A4 1 6Titik B1 8 2.5Titik B2 14 2.5Titik B3 14 4.5Titik B4 8 4.5

B. DITANYA

1 . Pertumbuhan x2. Pertumbuhan y3. Regangan Alami x4. Regangan Alami y5. Regangan Teknis x6. Regangan Teknis y7. Regangan Lagrange x8. Regangan Lagrang y9. Regangan Euler x10. Regangan Euler y

C. JAWAB

1. Pertumbuhan x

La x = 6L x = 5λx = La/L = 1.2 > 1 Memanjang

2 4 6 8 10 12 14 16

2

4

6

8

0

A 5X5 B 6X2

A1 (1,1) A2 (6,1)

A3 (6,6)A4 (1,6)

B1 (8,2.5) B2 (14,2.5)

B3 (14,4.5)B3 (8,4.5)

2. Pertumbuhan y

La y = 2L y = 5λy = La/L = 0.4 < 1 Memendek

3. Regangan Alami x

λx = 1.2ηx = 1 - 1/λx = 0.17

4. Regangan Alami y

λy = 0.4ηy = 1 - 1/λy = -1.5

5. Regangan Teknis x

λx = 1.2= 0.20

6. Regangan Teknis y

λy = 0.4= -0.6

7. Regangan Lagrange x

λx = 1.2= 0.22

8. Regangan Lagrange y

λy = 0.4= -0.42

9. Regangan Euler x

λx = 1.2= 0.17

10. Regangan Euler y

λy = 0.4= -2.63

εx = λx - 1

εy = λy - 1

Ex = (λx2 - 1)/2

Ey = (λy2 - 1)/2

ex = (1 - 1/λx2)/2

ey = (1 - 1/λy2)/2

Memanjang

2 4 6 8 10 12 14 16

2

4

6

8

0

A 5X5 B 6X2

A1 (1,1) A2 (6,1)

A3 (6,6)A4 (1,6)

B1 (8,2.5) B2 (14,2.5)

B3 (14,4.5)B3 (8,4.5)