A rigid horizontal bar ABC is supported by three vertical rods. There is no strain in the rods before load P is applied. After load P = 20 KN is applied, point A moves 3 mm in the direction the load. Determine the strain of the rods after the load is applied.

A rigid horizontal bar ABC is supported by three vertical rods. There is no strain in the rods before load P is applied. After load P = 20 KN is applied, point A moves 3 mm in the direction the load. Determine the strain of the rods after the load is applied.

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter7: Analysis Of Stress And Strain

Section: Chapter Questions

Problem 7.7.26P: - 7.2-26 The strains on the surface of an experiment al device made of pure aluminum (E = 70 GPa. v...

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Question

A rigid horizontal bar ABC is supported by three vertical rods. There is no strain in the rods
before load P is applied. After load P = 20 KN is applied, point A moves 3 mm in the direction of
the load. Determine the strain of the rods after the load is applied.
1,900 mm
2,700 mm
B
1,200 mm

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