The problems for Sections 2.5-2.8 involve displacements, deformations, and strain states at a point in a structural or machine member. These quantities, as with then stress counterparts, are important in design and failure criteria.
A rectangular airplane wing spar (Figure P2.58) is loaded so that a state of plane strain (ϵzz = ϵzx = ϵzy = 0) exists.
a. Determine the displacements for the spar for the deformations shown and the strain components at point B.
b. Let the X axis extend from point 0 through point B. Determine ϵXX at point B.
FIGURE P2.58
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