An axially loaded bar is subjected to a normal stress of $$173$$ $$MPa.$$ The maximum shear stress in the bar is

Mohr's cicle for the state of stress defined by $$\left[ {\matrix{ {30} & 0 \cr 0 & {30} \cr } } \right]$$ $$MPa$$ is a circle with

The symmetry of stress tensor at a point in the body under equilibrium is obtained from

The components of strain tensor at a point in the plane strain case can be obtained by measuring longitudinal strain in following directions.