By D. W. A. Rees (auth.)
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Take E = 110 GPa for bronze and E = 207 GPa for steel. 4 MPa, 0. 5 mm for a common length of 150 mm. Find the stress in each material and the change in length under an axial compressive force of 200 kN. Take E = 200 GPa and 100 GPa for steel and bronze respectively. 17 A bar of steel and two bars of brass each with a 25 x 15 mm cross-section are to carry jointly a load of 20 kN over a common length of 180 mm. If the bars are bonded in parallel so that each extends by the same amount, determine the load carried by each bar.
5 mm diameter testpiece, with a 50 mm gauge length. The following load and extension readings were obtained. Determine modulus of elasticity. 1% proof stress and the stress at the limit of elastic proportionality. 5 mm thick boiler plate with a USS of 415 MPa. What are the compressive stresses in the punch in each case? 9 A tie bar in a steel structure (see Fig. 11) carries a load of 100 kN through a 25 mm diameter pin in double shear. Calculate, using a safety factor of 3, suitable dimensions t.
9: rw = USSIS (a) :. 82 mm. = UBS IS = F I dt where d x t is the contact area perpendicular to the force. 58 mm. 29 mm, assuming that the rocker and fork are made of the same material. 85 X 103) I [2(A :. 83 X 103)1( 2B :. 88 mm. 6 The double riveted butt joint in Fig. 6 connects two plates 25 mm thick with 30 mm diameter rivets. Determine the necessary pitch p of the rivets if their ultimate shear and compressive strengths are USS = 370 and UCS = 695 MPa respectively. What is the efficiency of the joint when the ultimate tensile strength (UTS) for the plate material is 465 MPa?