What is the internal energy stored within a material when elastically deformed called________________?
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Answer: A. strain energy
Explanation
Strain energy is the internal potential energy stored within a material as a result of elastic deformation. External mechanical work applied to deform the material is converted directly into stored strain energy. Releasing the applied load allows the material to recover its original shape by releasing this energy. Strain energy equals the work done by the external forces acting within the elastic limit. Mathematically, it is calculated as the area under the elastic region of the stress-strain curve. When the elastic limit is exceeded, some energy is permanently dissipated through plastic deformation.
Spring manufacturers design suspension components to store and release specific amounts of strain energy. Impact absorbing structures rely on material resilience to cushion sudden mechanical shocks safely. Calculating strain energy helps engineers prevent catastrophic elastic instability and buckling failures. Resilience refers specifically to the capacity of a material to absorb energy when deformed elastically. Proof resilience is the maximum strain energy stored up to the proportional elastic limit. Toughness measures the total energy a material can absorb before complete fracture occurs.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
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