Many of the problems for Sections 2.1-2.4 require the determination of principal stresses and maximum shear stress, as well as the location of the planes on which they act. These quantities are required input in design and failure criteria for structural and mechanical systems.
A volume element at the free surface is shown in Figure P2.30. The state of stress is plane stress with σxx = 100 MPa. Determine the other stress components.
FIGURE P2.30
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