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If the plane strain deformation is occurring parallel to the XY plane, then strain in the z-direction is equal to zero. The stress in the z-direction will be equal to _______________ (Given that stress in x and y-direction is σx andσy respectively).

If the plane strain deformation is occurring parallel to the XY plane, then strain in the z-direction is equal to zero. The stress in the z-direction will be equal to _______________ (Given that stress in x and y-direction is σx andσy respectively). Correct Answer (σx+σy)/2

Although the strain in the z-direction is zero, the restraining stress will be acting in the z-direction. So, the stress in the z-directio=>σz=(σx+σy)/2

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