question_answer

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

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

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

Poission?s ratio = 0.3

The stress developed in the direction of thickness

A) zero

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

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

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