The two bars are used to support load P. When unloaded, joint B has coordinates (0, 0). After load P is applied, joint B moves to the coordinate position (-0.46 in., -0.20 in.). Assume a = 15 ft, b = 30 ft, c = 10 ft, and d = 20 ft. Determine the normal strain in each bar. C A Answer: i EAB EBC = i P a (1) B με με X b (2) C d

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Consider a cantilevered beam which is made of two identical. rectangular sections, a force P is applied at free end. 11) if A and B are not clued together, determine the bending stress distribution at a-a cross section, draw o Chint: each section carries P/ and label the Tout at the outest fibers. * 0.5m a 12) if we weld the two A & B together along the member length. determine the bending stress distribution, draw and laber. m ✓ P=1kw A 181- дет B зст

The hollow circular beam is fixed to the wall (with a bracket) on the left and has an end-cap on the right. The cross-section is shown. (a) Determine state of stress at point A & draw the stress element (b) Determine state of stress at point B & draw the stress element A 100 k-in Tout 2 in n=1.75 in В. B 40 k-in C Tout 30 k X