A steel plate in a state of plane stress has e, = 240 µ, e, = 200 u and 7g = 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) 215u (c) 107µ (b) 220р (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
A steel plate in a state of plane stress has e, = 240 µ, e, = 200 u and 7g = 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) 215u (c) 107µ (b) 220р (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
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 7.7.4P: An element of material in plain strain is subjected to strains x = 0.0015, , y . = -0.0002, and xy =...
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A steel plate in a state of plane stress has åx = 56 ì, åy = 21 ì and ãxy = 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 óY = 40 MPa. If yield does not occur when using the maximum-distortion energy criterion the factor of safety is most nearly:
a.
4.2
b.
Yield occurs
c.
0.25
d.
2.1
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