2.10.3 Plane Stress

When the elastic body is very thin and there are no loads applied in the direction parallel to the thickness, the state of stress in the body is said to be plane stress. A thin plate subjected to in-plane loading as x

FIGURE 2.82 State of stress in an elemental volume.

x z

FIGURE 2.83 Plane stress problem.

x y shown in Figure 2.83 is an example of a plane stress problem. In this case, sz = tyz = t^ = 0 and the constitutive relation for an isotropic continuum is expressed as

" Sx "

0 0

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