A steel plate in a state of plane stress has e, =240 µ, e, = 200 u and 7a = 100u Poisson'sratio v = 0.3 and the modulus of elasticityE=210GPA. Use this information to answerquestions281 to 30.28. The maximum principal strain in the planeis most nearly:(a) 215µ(c) 107µ(b) 220и(d) 328µ29. The maximum principal stress in the planeis most nearly:(а) 69MPа(c) 57MPA(b) 75MPA(d) 77 MPa30. The state of plane stress is made of a steelwith oy = 90 MPa. If yield does not occurwhen using the maximum-distortionenergy criterion the factor of safety ismost nearly:(a) 0.53(c) Yield occurs(b) 1.06(d) 1.88

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Answered: A steel plate in a state of plane…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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A steel plate in a state of plane stress has e, =
240 µ, e, = 200 u and 7a = 100u Poisson's
ratio v = 0.3 and the modulus of elasticity
E=210GPA. Use this information to answer
questions281 to 30.
28. The maximum principal strain in the plane
is most nearly:
(a) 215µ
(c) 107µ
(b) 220и
(d) 328µ
29. The maximum principal stress in the plane
is most nearly:
(а) 69MPа
(c) 57MPA
(b) 75MPA
(d) 77 MPa
30. The state of plane stress is made of a steel
with oy = 90 MPa. If yield does not occur
when using the maximum-distortion
energy criterion the factor of safety is
most nearly:
(a) 0.53
(c) Yield occurs
(b) 1.06
(d) 1.88

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A steel plate in a state of plane stress has å_x = 56 ì, å_y = 21 ì and ã_xy = 40ì Poisson's ratio v = 0.3 and the modulus of elasticity E=210GPa.

The state of plane stress is made of a steel with ó_Y = 40 MPa. If yield does not occur when using the maximum-distortion energy criterion the factor of safety is most nearly:

4.2

Yield occurs

0.25

2.1

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