D E 4 m B + 2m2 m – 3 m-
Materials Science And Engineering Properties
1st Edition
ISBN:9781111988609
Author:Charles Gilmore
Publisher:Charles Gilmore
Chapter8: Engineering Materials
Section: Chapter Questions
Problem 85CQ
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Question
Many of the necessities of everyday life, from rubber bands to suspension bridges,
depending on the elastic properties of materials. The greater the deforming forces, the
greater the resulting deformation. This proportionality is called Hooke’s law, and the
ratio of stress to strain is called the elastic modulus. The modulus of elasticity is
calculated by measuring the strain produced.
In Figure Q4, a beam is hung by 2 wires namely BD and CE. If a load P on the beam
causes the end C to be displaced to 10 mm downward,
(a) Label the deformations produced by P on a free-body diagram
Find normal strain in wires BD and CE.
Transcribed Image Text:D
E
4 m
A
B
+ 2m–2 m–
-3 m-
Figure Q4
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