Question: A cantilever beam AB with a rectangular cross section of width b and depth 2c supports a single concentrated load P at its end A.

A cantilever beam AB with a rectangular cross section of width b and depth 2c supports a single concentrated load P at its end A. Write a computer program to calculate, for any values of xyc and yyc, (a) the ratios smaxysm and sminysm , where smax and smin are the principal stresses at point K (x, y) and sm the maximum normal stress in the same transverse section, (b) the angle up that the principal planes at K form with a transverse and a horizontal plane through K. Use this program to check the values shown in Fig. 8.8 and to verify that smax exceeds sm if x # 0.544c, as indicated in the second footnote on page 560.

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