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Questions and Answers
Which of the following best defines yield stress?
Which of the following best defines yield stress?
- The stress at which a material undergoes elastic deformation
- The stress at which a material begins to function in a plastic manner (correct)
- The stress at which a material exhibits permanent strain
- The stress at which a material breaks
What happens to a material when it reaches its yield stress?
What happens to a material when it reaches its yield stress?
- It exhibits permanent strain (correct)
- It becomes brittle
- It breaks
- It undergoes elastic deformation
Why is a material with permanent deformation no longer suitable for its intended purpose?
Why is a material with permanent deformation no longer suitable for its intended purpose?
- Because it doesn't meet the required specifications (correct)
- Because it breaks
- Because it becomes brittle
- Because it undergoes elastic deformation
Which of the following best describes the yield stress of a material?
Which of the following best describes the yield stress of a material?
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What is the significance of a 0.1% or 0.2% permanent strain in a material?
What is the significance of a 0.1% or 0.2% permanent strain in a material?
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Why does a material with permanent deformation no longer serve its purpose?
Why does a material with permanent deformation no longer serve its purpose?
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