1-85. The beam is made from southern pine and is supported by base plates resting on brick work. If the allowable bearing stresses for the materials are (spine)allow = 2.81 ksi and (sbrick)allow = 6.70 ksi, determine the required length of the base plates at A and B to the nearest 1/4 inch in order to support the load shown. The plates are 3 in. wide.
6-191. Determine the shear and moment in the beam as functions of x , then draw the shear and moment diagrams for the beam.
6-189. Determine the maximum bending stress in the handle of the cable cutter at section a - a . A force of 45 lb is applied to the handles. The cross-sectional area is shown in the figure.
6-150. The bar is subjected to a moment of M = 153 N . m. Determine the smallest radius r of the fillets so that an allowable bending stress of sallow = 120 MPa is not exceeded.
14-11. Determine the bending strain energy in the A-36 structural steel W10 * 12 beam. Obtain the answer using the coordinates (a) x1 and x4 , and (b) x2 and x3 .
*14-12. If P = 10 kip, determine the total strain energy stored in the truss. Each member has a diameter of 2 in. and is made of A992 steel.
14-17. Determine the bending strain energy stored in the simply supported beam subjected to the triangular distributed load. EI is constant.
14-32. Determine the slope at point A of the beam. EI is constant.
14-3. Determine the strain energy in the stepped rod assembly. Portion AB is steel and BC is brass. Ebr = 101 GPa, Est = 200 GPa, (sY )br = 410 MPa, (sY )st = 250 MPa.
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