Question: 1.42.Given the stress acting uniformly over the sides of a thin, flat plate (Fig. P1.42), determine (a) the stresses on planes inclined at 20

1.42.Given the stress acting uniformly over the sides of a thin, flat

1.42.Given the stress acting uniformly over the sides of a thin, flat plate (Fig. P1.42), determine (a) the stresses on planes inclined at 20 to the horizontal and (b) the principal stresses and their orientations. Figure P1.42. TO B C 30 10 20 TO 70

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