Difficulty: Easy
Correct Answer: Strain energy
Explanation:
DefinitionsStrain energy: total elastic energy stored by a body under load, recoverable upon unloading (within elastic limit).Resilience: ability to absorb energy elastically; commonly expressed as strain energy per unit volume.Proof resilience: maximum strain energy stored up to the elastic limit.Impact energy: energy absorbed during impact testing (fracture toughness context).
Final AnswerStrain energy.
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