Theories of elastic failure while dealing with ductile materials consider the failure criterion as (a) Ultimate stress (b) Yield stress (c) Both ultimate and yield stress (d) None

Theories of elastic failure while dealing with ductile materials consider the failure criterion as

(a) Ultimate stress

(b) Yield stress

(c) Both ultimate and yield stress

(d) None
by

1 Answer

Answer :

(b) Yield stress
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Related questions

Theories of elastic failure while dealing with brittle materials consider the failure criterion as (a) Ultimate stress (b) Yield stress (c) Both ultimate and yield stress (d) None

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Last Answer : (a) Ultimate stress

In a ductile material, the strength are (a)Firstly Ultimate >yield > elastic limit (b) Secondly Ultimate > yield =elastic limit (c) Thirdly Ultimate=yield=elastic limit (d) None

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Last Answer : (a)Firstly Ultimate >yield > elastic limit

A ductile material may not meet a failure if it has been tested for the theories of failure (a) Firstly Maximum Shear Stress Theory (b) Secondly Maximum Shear Strain Energy Theory (c) Both (a) & (b) (d) None

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Theories of elastic failure help to recognize (a) Weak materials (b) Strong materials (c) Both weak and strong materials (d) None

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Factor of safety for fatigue loading is the ratio of (a) elastic limit to the working stress (b) Young's modulus to the ultimate tensile strength (c) endurance limit to the working stress (d) elastic limit to the yield point

Description : Factor of safety for fatigue loading is the ratio of (a) elastic limit to the working stress (b) Young's modulus to the ultimate tensile strength (c) endurance limit to the working stress (d) elastic limit to the yield point

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A ductile material may not meet a failure if it has been tested for the theories of failure (a) Firstly Maximum Principal Theory (b) Secondly Maximum Principal Strain Theory (c) Thirdly Maximum principal strain energy theory (d) None

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Theories of elastic failure is the (a) Firstly analysis of the various failures (b) Secondly analysis of the strength of a material (c) Both (a) & (b) (d) None

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Theories of elastic failure help in the (a) Material development (b) Development of method of manufacture (c) Both (a) & (b) (d) None

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Under complex loading, theories of elastic failure establishes the (a) Margin of failure (b) Margin of safety (c) Both (a) & (b) (d) None

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Consider the following salient points in a stress-strain curve of a mild steel bar: 1. Yield point 2. Braking point 3. Yield plateau 4 . Proportionality limit 5. Ultimate point The correct sequence in which they occur while testing the mild steel bar in tension from initial zero strain to failure is (a) 4, 1, 2, 3 and 5 (b) 1, 4, 3, 5 and 2 (c) 4, 1, 3, 5 and 2 (d) 1, 4, 2, 3 and 5

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In a brittle material, the strength are (a) Firstly Ultimate >yield > elastic limit (b) Secondly Ultimate > yield =elastic limit (c) Thirdly Ultimate=yield=elastic limit (d) None

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To predict failure in design components which failure criteria is not assumed, when mean stress and stress amplitude are nonzero? a. Goodman criterion b. Soderberg criteria c. Gerber criteria d. None of the above

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Last Answer : d. None of the above

Finding allowable stress after the application of theories of failure ensures (a) Soundness of design (b) Lapses in design (c) Both (a) & (b) (d) None

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Failure of a material is called fatigue when it fails (a) at the elastic limit (b) below the elastic limit (c) at the yield point (d) below the yield point

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Last Answer : (d) below the yield point

Maximum shear stress theory is applicable to (a) Ductile materials (b) Brittle materials (c) Composite materials

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Which theories of failure are used for (a) ductile materials, and (B) brittle materials ?

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Which Theories Of Failure Are Used For? (a) Ductile Materials (b) Brittle Materials?

Description : Which Theories Of Failure Are Used For? (a) Ductile Materials (b) Brittle Materials?

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According to the ASME code, maximum allowable shear stress is taken as X% of yield strength or Y% of ultimate strength. a) X=30 Y=18 b) X=30 Y=30 c) X=18 Y=18 d) X=18 Y=30

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Last Answer : a) X=30 Y=18

According to the ASME code, maximum allowable shear stress is taken as X% of yield strength or Y% of ultimate strength. a) X=30 Y=18 b) X=30 Y=30 c) X=18 Y=18 d) X=18 Y=30

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The Mohr's straight theory is based on the following fact: (A) Material fails essentially by shear (B) Ultimate strength of the material is determined by the stress in the plane of slip (C) Failure criterion is independent of the intermediate principal stress (D) All the above

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