題組內容

(20%) 4. Calculate the maximum shear stress Imax and the maximum bending stress Omax in a wood beam carrying a uniform load of 22.5 kN/m (which includes the weight of the beam) if the length is 1.95 m and the cross section is rectangular with width 150 mm and height 300 mm, and the beam is either
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(a) simply supported as in the figure part a, or (10%)