7-81. The material distorts into the dashed positionshown. Determine the average normal strains e, ey and theshear strain yy at A, and the average normal strain alongline BE.15 mm30 mm50 mm200 mm50 mm-150mm|F

The normal strain in X direction is given by the following expression: εx=A'F'-AFAF Substitute the…

Answered: 7-81. The material distorts into the…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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The strain components at a point in a body subjected to plane strain are E = 850μ, Ey = -300μ, and Yay 400μ. Determine the strain components En, Et, and Ynt at the point if the nt-axes are rotated with respect to the xy-axes as indicate below. = Y t $30% -X n
2
The strain components ɛ, Ey, and yy are given for a point in a body subjected to plane strain. Using Mohr's circle, determine the principal strains, the maximum in-plane shear strain, and the absolute maximum shear strain at the point. Show the angle 0, the principal strain deformations, and the maximum in-plane shear strain distortion in a sketch. Ex = 300 µe, ɛ, = -710 pe, Vxy = -440 urad. Enter the angle such that -45°s0,s +45°. Answer: Ep1= pe Ep2= με Ymax in-plane = prad Yabsolute max. prad Əp =
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B7
(b) Three strain gauges were arranged in the form of a rectangular rosette and positioned on a test surface, the measured strains were as follows: 81-350 x 10 82-110x 10 E=230 x 10 Determine (1) the principle strains; (1) the principle stresses, the direction of the greater principle strain relative to gauge I. Also draw the Mohr's Strain Cirele. Take the Modulus of Elasticity value to be E-210 GN/m and Poisson's ratio - 0.3.
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The ratio of linear strain to the lateral strain is called shear strain. Select one: True False

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7-81. The material distorts into the dashed position shown. Determine the average normal strains e, ey and the shear strain yy at A, and the average normal strain along line BE. 15 mm 30 mm 50 mm 200 mm 50 mm -150mm |F