A portion of the stress-strain curve for a stainless steel alloy is shown in Figure Q-6. A Q-6 350 mm long bar is loaded in tension until it elongates 2.0 mm, and then the load is removed. (a) Determine the permanent set in the bar. (b) Determine the length of the unloaded bar. (c) If the bar is reloaded, determine the proportional limit. [Use the figure and make necessary drawings/markings to show your solution strategy!] 640 480 320 160 0.002 0.004 0.006 0.008 0.010 Strain (mm/mm) Figure Q-6 Stress (MPa)

A portion of the stress-strain curve for a stainless steel alloy is shown in Figure Q-6. A Q-6 350 mm long bar is loaded in tension until it elongates 2.0 mm, and then the load is removed. (a) Determine the permanent set in the bar. (b) Determine the length of the unloaded bar. (c) If the bar is reloaded, determine the proportional limit. [Use the figure and make necessary drawings/markings to show your solution strategy!] 640 480 320 160 0.002 0.004 0.006 0.008 0.010 Strain (mm/mm) Figure Q-6 Stress (MPa)

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter1: Tension, Compression, And Shear

Section: Chapter Questions

Problem 1.10.8P: A suspender on a suspension bridge consist of a cable that passes over the main cable (see figure)...

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A flat bar of width b and thickness t has a hole of diameter d drilled through it (see figure). The hole may have any diameter that will fit within the bar. What is the maximum permissible tensile load Pmaxif the allowable tensile stress in the material is st?
Solve the preceding problem if the diameter is 480 mm, the pressure is 20 MPa, the yield stress in tension is 975 MPa, the yield stress in shear is 460 MPa, the factor of safety is 2,75, the modulus of elasticity is 210 GPa, Poissorfs ratio is 0.28, and the normal strain must not exceed 1190 x 10" . For part (b), assume that the tank thickness is 8 mm and the measured normal strain is 990 x 10~ .
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