Problem 4-96/4-97/4-98/ Engineering Mechanics Materials.

Engineering Mechanics problem with solution
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4–96. The 10-mm-diameter shank of the steel bolt has a bronze sleeve bonded to it. The outer diameter of this sleeve is 20 mm. If the yield stress for the steel is ( sY) st = 640 MPa, and for the bronze ( sY) br= 520 MPa, determine the magnitude of the largest elastic load P that can be applied to the assembly. Est= 200 GPa, Ebr = 100 GPa.

4–97. The weight is suspended from steel and aluminum wires, each having the same initial length of 3 m and cross-sectional area of 4 mm 2. If the materials can be assumed
to be elastic perfectly plastic, with (sY )
st = 120 MPa and ( sY )al = 70 MPa, determine the force in each wire if the weight is (a) 600 N and (b) 720 N. Eal = 70 GPa, Est = 200 GPa.

4–98. The bar has a cross-sectional area of 0.5 in2 and is made of a material that has a stress–strain diagram that can be approximated by the two line segments
shown. Determine the elongation of the bar due to the applied loading.