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8. 关于σ0.2有如下四种论述,请判断哪一个是正确的( )

A、弹性应变为0.2%时的应力值

B、总应变为0.2%时的应力值

C、塑性应变为0.2%时的应力值

D、塑性应变为0.2时的应力值

时间：2021-09-01 16:44 关键词：青书学堂平顶山学院机械电子工程机械制造装备设计

答案解析

C

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