What terminology describes the aggregate strain energy stored inside a deformed body__________________?
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Answer: A. resilience
Explanation
Resilience measures the total strain energy stored within a material during elastic deformation. This energy is completely recoverable when the applied external load is fully removed. It represents the capacity of a structure to absorb energy without suffering permanent damage. Strain energy is calculated by integrating the area under the elastic region of a curve. The elastic limit defines the maximum stress a material can endure without permanent deformation. Units of strain energy storage are typically expressed in joules per cubic meter.
High resilience is crucial for mechanical components like springs subjected to repeated loading cycles. Engineers select resilient materials for bumpers and shock absorbers to absorb sudden impacts. This property prevents permanent bending or warping in structural elements under normal loads. Proof resilience is the maximum strain energy stored up to the elastic limit. Modulus of resilience is the strain energy stored per unit volume up to the elastic limit. Toughness measures the total energy absorbed until complete fracture occurs, including plastic deformation.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
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