The area method to find energy stored in deformed material is valid for :
Correct answer: C. both a and b
- A. Elastic region
- B. Non-Elastic region
- C. both a and b
- D. Elastic for small force
Explanation
The area method is valid for both the elastic and non-elastic regions. In the elastic region, the area under the stress-strain curve represents the elastic energy stored in the material. In the non-elastic region, the area under the stress-strain curve represents the total energy absorbed by the material, including both elastic and plastic deformation.
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About Physics of Solids
Solids are compared through crystal structure, amorphous arrangement, elasticity, plastic deformation, stress, strain and Young’s modulus. Electrical behavior depends on available charge carriers and band structure, so conductors, insulators and semiconductors must be distinguished from mechanical properties such as strength, stiffness and brittleness.
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