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Questions and Answers
What type of deformation is characterized by the material's inability to return to its original dimension?
What type of deformation is characterized by the material's inability to return to its original dimension?
- Linear deformation
- Plastic deformation (correct)
- Elastic deformation
- Ductile deformation
Which mechanical property represents resistance to the separation of atoms?
Which mechanical property represents resistance to the separation of atoms?
- Yield strength
- Stress
- Strain
- Elastic modulus (correct)
In stress-strain testing, what does the nonlinear portion of the curve represent?
In stress-strain testing, what does the nonlinear portion of the curve represent?
- Linear response
- Elastic response
- Ductile response
- Plastic response (correct)
What does the initial linear slope of the stress-strain plot represent?
What does the initial linear slope of the stress-strain plot represent?
What is the main characteristic of elastic deformation?
What is the main characteristic of elastic deformation?
What is the primary mechanism of plastic deformation in metals?
What is the primary mechanism of plastic deformation in metals?
How does grain size affect the yield strength of a metal?
How does grain size affect the yield strength of a metal?
What is the primary difference between the stress-strain behavior of a rubber band and a metal?
What is the primary difference between the stress-strain behavior of a rubber band and a metal?
What is the difference between engineering stress and true stress?
What is the difference between engineering stress and true stress?
What is the purpose of the 0.2% offset yield strength in a stress-strain curve?
What is the purpose of the 0.2% offset yield strength in a stress-strain curve?
How does the yield strength of ceramics compare to that of metals?
How does the yield strength of ceramics compare to that of metals?
What happens during plastic deformation of a material?
What happens during plastic deformation of a material?
Which mechanical property is related to the ability of a material to undergo plastic deformation without fracturing?
Which mechanical property is related to the ability of a material to undergo plastic deformation without fracturing?
What is the purpose of using true stress ($\sigma_T$) and true strain ($\epsilon_T$) instead of engineering stress and strain?
What is the purpose of using true stress ($\sigma_T$) and true strain ($\epsilon_T$) instead of engineering stress and strain?
What is the effect of decreasing the grain size on the strength of a polycrystalline material?
What is the effect of decreasing the grain size on the strength of a polycrystalline material?
Which of the following statements about rubber band testing is correct?
Which of the following statements about rubber band testing is correct?
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