question_answer

The state of plane stress in a plate of 100 mm thickness is given as

\[{{\sigma }_{x\,x}}=100\,\,\text{N/m}{{\text{m}}^{\text{2}}},\] \[{{\sigma }_{x\,y}}=200\,\,\text{N/m}{{\text{m}}^{\text{2}}},\]

Young's modulus \[=300\,\,\text{N/m}{{\text{m}}^{\text{2}}}\]

Poission?s ratio = 0.3

The stress developed in the direction of thickness is

A) Zero                             

B) \[90\,\,\text{N/m}{{\text{m}}^{\text{2}}}\]

C) \[100\,\,\text{N/m}{{\text{m}}^{\text{2}}}\]                

D) \[200\,\,\text{N/m}{{\text{m}}^{\text{2}}}\]