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Which type of deformation does a stressed body undergo after the limit of proportionality has been crossed?
- a)Elastic deformation
- b)Plastic deformation
- c)Elastoplastic deformation
- d)Semi plastic deformation
Correct answer is option 'A'. Can you explain this answer?
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Which type of deformation does a stressed body undergo after the limi...
For stresses beyond the elastic limit, a material exhibits plastic behavior. This means the material deforms irreversibly and does not return to its original shape and size, even when the load is removed. When stress is gradually increased beyond the elastic limit, the material undergoes plastic deformation.
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Hence, the correct option is (A)
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Which type of deformation does a stressed body undergo after the limi...
Elastic Deformation:
When a stressed body undergoes deformation up to the limit of proportionality, it experiences elastic deformation. This type of deformation is reversible, meaning that the body will return to its original shape once the stress is removed. Elastic deformation occurs when the applied stress is within the elastic limit of the material, causing the atoms or molecules to temporarily move from their equilibrium positions.
Plastic Deformation:
After the limit of proportionality has been crossed, the stressed body undergoes plastic deformation. Unlike elastic deformation, plastic deformation is irreversible. This means that the body will not return to its original shape once the stress is removed. Plastic deformation occurs when the applied stress exceeds the yield point of the material, causing permanent rearrangement of atoms or molecules within the material.
Elastoplastic Deformation:
Elastoplastic deformation is a combination of both elastic and plastic deformation. In this type of deformation, the material undergoes elastic deformation up to a certain point, beyond which it starts to exhibit plastic deformation. Elastoplastic deformation is often seen in materials that have a yield point and exhibit both elastic and plastic behavior under stress.
Semi Plastic Deformation:
Semi plastic deformation is not a commonly recognized type of deformation. It may refer to a situation where a material shows some characteristics of plastic deformation but still retains some degree of elasticity. This can occur in materials that have a gradual transition from elastic to plastic behavior, where the deformation may not be entirely reversible but also not fully permanent.
When a stressed body undergoes deformation up to the limit of proportionality, it experiences elastic deformation. This type of deformation is reversible, meaning that the body will return to its original shape once the stress is removed. Elastic deformation occurs when the applied stress is within the elastic limit of the material, causing the atoms or molecules to temporarily move from their equilibrium positions.
Plastic Deformation:
After the limit of proportionality has been crossed, the stressed body undergoes plastic deformation. Unlike elastic deformation, plastic deformation is irreversible. This means that the body will not return to its original shape once the stress is removed. Plastic deformation occurs when the applied stress exceeds the yield point of the material, causing permanent rearrangement of atoms or molecules within the material.
Elastoplastic Deformation:
Elastoplastic deformation is a combination of both elastic and plastic deformation. In this type of deformation, the material undergoes elastic deformation up to a certain point, beyond which it starts to exhibit plastic deformation. Elastoplastic deformation is often seen in materials that have a yield point and exhibit both elastic and plastic behavior under stress.
Semi Plastic Deformation:
Semi plastic deformation is not a commonly recognized type of deformation. It may refer to a situation where a material shows some characteristics of plastic deformation but still retains some degree of elasticity. This can occur in materials that have a gradual transition from elastic to plastic behavior, where the deformation may not be entirely reversible but also not fully permanent.
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Which type of deformation does a stressed body undergo after the limit of proportionality has been crossed?a)Elastic deformationb)Plastic deformationc)Elastoplastic deformationd)Semi plastic deformationCorrect answer is option 'A'. Can you explain this answer?
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