Question: Problem 3 : For the rectangular beam in Fig. 3 , ( a ) Draw a shear - force diagram ( b ) Assuming the

Problem 3: For the rectangular beam in Fig. 3,
(a) Draw a shear-force diagram
(b) Assuming the beam is uncracked, show the direction of the principle stresses at middepth at point \(\mathrm{A},\mathrm{B}\), and C .
(c) Sketch, on a drawing of the beam, the inclined cracks that would develop at A, B, and C.
Problem 3 : For the rectangular beam in Fig. 3 ,

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