Given that a, = -24 MPa, a, = -26 MPa and the maximum principal stress is -19 MPa. Use this information to answer questions 26 and 27. 26. The maximum shearing stress is most nearly (a) 5.65MP. (b) 2.0MPA (d) 5.9MPA (c) 6.0MPA 27. The state of plane stress is made of a steel with ay = 17 MPa. If yield does not occur when using the maximum-shearing-stress criterion the factor of safety is most nearly: (a) 2.1 (c) Yield occurs (d) 0.70 (b) 1.40
Given that a, = -24 MPa, a, = -26 MPa and the maximum principal stress is -19 MPa. Use this information to answer questions 26 and 27. 26. The maximum shearing stress is most nearly (a) 5.65MP. (b) 2.0MPA (d) 5.9MPA (c) 6.0MPA 27. The state of plane stress is made of a steel with ay = 17 MPa. If yield does not occur when using the maximum-shearing-stress criterion the factor of safety is most nearly: (a) 2.1 (c) Yield occurs (d) 0.70 (b) 1.40
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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
Transcribed Image Text:Given that o, = -24 MPa, a, = -26 MPa and
the maximum principal stress is -19 MPa. Use
this information to answer questions 26 and
27.
26. The maximum shearing stress is most
nearly
(a) 5.65MPA.
(b) 2.0MPа
(d) 5.9MPA
(c) 6.0MPA
27. The state of plane stress is made of a steel
with oy = 17 MPa. If yield does not occur
when using the maximum-shearing-stress
criterion the factor of safety is most
nearly:
(a) 2.1
(c) Yield occurs (d) 0.70
(b) 1.40

Transcribed Image Text:A steel plate in a state of plane stress has E =
240 µ, E, = 200 u and 7, = 100u Poisson's
ratio v = 0.3 and the modulus of elasticity
is
27
E=210GPA. Use this information to answer
questions281 to 30.
24
28. The maximum principal strain in the plane
is most nearly:
(a) 215µ
(c) 107µ
(b) 220и
(d) 328u
29. The maximum principal stress in the plane
is most nearly:
(a) 69MPA
(b) 75MPA
(d) 77 MPa
(c) 57MPA
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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