Mechanical Engineering Exam > Mechanical Engineering Questions > Select the WRONG statement:a)Stress concentra...
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Select the WRONG statement:
- a)Stress concentration in static load is more pronounced in case of brittle materials.
- b)In cyclic loading, stress concentration is more serious in ductile materials.
- c)The maximum stress at the location of stress concentration is determined by photographic method.
- d)Stress concentration factor is independent of the geometry of discontinues in configuration of the machine part.
Correct answer is option 'B'. Can you explain this answer?
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Select the WRONG statement:a)Stress concentration in static load is mo...
The effect of stress concentration is more severe in case of brittle materials, due to their inability of plastic deformation. Brittle materials do not yield locally and there is no readjustment of stresses at the discontinuities.
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Select the WRONG statement:a)Stress concentration in static load is mo...
Stress Concentration in Materials
Stress concentration is a phenomenon that occurs in materials when there is a sudden change in the geometry of the material. This can result in a localized increase in stress, which can lead to failure of the material. It is important to understand the factors that contribute to stress concentration in order to design materials that can withstand the stresses they will be subjected to.
Wrong Statement
Option B is the wrong statement, which states that in cyclic loading, stress concentration is more serious in ductile materials. This statement is incorrect because stress concentration is generally more serious in brittle materials, not ductile materials.
Explanation
Stress concentration is caused by a change in geometry that causes a local increase in stress. In brittle materials, the sudden change in geometry can cause the material to crack, which can result in failure. In ductile materials, the material can deform and redistribute the stress, which can reduce the impact of stress concentration.
In cyclic loading, materials are subjected to repeated loading and unloading cycles. This can cause fatigue failure, which is when materials fail due to repeated stresses over time. Stress concentration can contribute to fatigue failure, but it is not more serious in ductile materials. In fact, ductile materials are often preferred for applications where cyclic loading is expected because they are less likely to fail due to fatigue.
Conclusion
In summary, stress concentration is a phenomenon that occurs in materials when there is a sudden change in geometry. It can lead to failure of the material, and it is important to understand its causes and effects in order to design materials that can withstand the stresses they will be subjected to. The statement that stress concentration is more serious in ductile materials in cyclic loading is incorrect.
Stress concentration is a phenomenon that occurs in materials when there is a sudden change in the geometry of the material. This can result in a localized increase in stress, which can lead to failure of the material. It is important to understand the factors that contribute to stress concentration in order to design materials that can withstand the stresses they will be subjected to.
Wrong Statement
Option B is the wrong statement, which states that in cyclic loading, stress concentration is more serious in ductile materials. This statement is incorrect because stress concentration is generally more serious in brittle materials, not ductile materials.
Explanation
Stress concentration is caused by a change in geometry that causes a local increase in stress. In brittle materials, the sudden change in geometry can cause the material to crack, which can result in failure. In ductile materials, the material can deform and redistribute the stress, which can reduce the impact of stress concentration.
In cyclic loading, materials are subjected to repeated loading and unloading cycles. This can cause fatigue failure, which is when materials fail due to repeated stresses over time. Stress concentration can contribute to fatigue failure, but it is not more serious in ductile materials. In fact, ductile materials are often preferred for applications where cyclic loading is expected because they are less likely to fail due to fatigue.
Conclusion
In summary, stress concentration is a phenomenon that occurs in materials when there is a sudden change in geometry. It can lead to failure of the material, and it is important to understand its causes and effects in order to design materials that can withstand the stresses they will be subjected to. The statement that stress concentration is more serious in ductile materials in cyclic loading is incorrect.
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Select the WRONG statement:a)Stress concentration in static load is more pronounced in case of brittle materials.b)In cyclic loading, stress concentration is more serious in ductile materials.c)The maximum stress at the location of stress concentration is determined by photographic method.d)Stress concentration factor is independent of the geometry of discontinues in configuration of the machine part.Correct answer is option 'B'. Can you explain this answer?
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Select the WRONG statement:a)Stress concentration in static load is more pronounced in case of brittle materials.b)In cyclic loading, stress concentration is more serious in ductile materials.c)The maximum stress at the location of stress concentration is determined by photographic method.d)Stress concentration factor is independent of the geometry of discontinues in configuration of the machine part.Correct answer is option 'B'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Select the WRONG statement:a)Stress concentration in static load is more pronounced in case of brittle materials.b)In cyclic loading, stress concentration is more serious in ductile materials.c)The maximum stress at the location of stress concentration is determined by photographic method.d)Stress concentration factor is independent of the geometry of discontinues in configuration of the machine part.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Select the WRONG statement:a)Stress concentration in static load is more pronounced in case of brittle materials.b)In cyclic loading, stress concentration is more serious in ductile materials.c)The maximum stress at the location of stress concentration is determined by photographic method.d)Stress concentration factor is independent of the geometry of discontinues in configuration of the machine part.Correct answer is option 'B'. Can you explain this answer?.
Select the WRONG statement:a)Stress concentration in static load is more pronounced in case of brittle materials.b)In cyclic loading, stress concentration is more serious in ductile materials.c)The maximum stress at the location of stress concentration is determined by photographic method.d)Stress concentration factor is independent of the geometry of discontinues in configuration of the machine part.Correct answer is option 'B'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Select the WRONG statement:a)Stress concentration in static load is more pronounced in case of brittle materials.b)In cyclic loading, stress concentration is more serious in ductile materials.c)The maximum stress at the location of stress concentration is determined by photographic method.d)Stress concentration factor is independent of the geometry of discontinues in configuration of the machine part.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Select the WRONG statement:a)Stress concentration in static load is more pronounced in case of brittle materials.b)In cyclic loading, stress concentration is more serious in ductile materials.c)The maximum stress at the location of stress concentration is determined by photographic method.d)Stress concentration factor is independent of the geometry of discontinues in configuration of the machine part.Correct answer is option 'B'. Can you explain this answer?.
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