A steel bar 500 ft long, suspended vertically from one end, supports a 207 load P at its lower end. The maximum stress in the bar is 8000 psi caused both by the load and by its weight. If E = 30 X 10 psi and steel weighs 490 lb/cu ft, find the total elongation of the bar. Ans. 8 = 1.43 in.

A steel bar 500 ft long, suspended vertically from one end, supports a 207 load P at its lower end. The maximum stress in the bar is 8000 psi caused both by the load and by its weight. If E = 30 X 10 psi and steel weighs 490 lb/cu ft, find the total elongation of the bar. Ans. 8 = 1.43 in.

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter8: Applications Of Plane Stress (pressure Vessels, Beams, And Combined Loadings)

Section: Chapter Questions

Problem 8.3.10P: Solve the preceding problem if F =90 mm, F = 42 kN, and t = 40°MPa

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Please solve quesition no 207.

207
load P at its lower end. The maximum stress in the bar is 8000 psi caused both
by the load and by its weight. If E = 30 X 10 psi and steel weighs 490 lb/cu ft,
find the total elongation of the bar.
A steel bar 500 ft long, suspended vertically from one end, supports a
Ans. 6 = 1.43 in.
8000 lb
3000 lb 7000 lb
2000 lb
4' 5 3'-
Fig. P-208 and P-209.

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