关于低碳钢试样拉伸至屈服时,有以下结论,正确的是( ) -题库考试答案搜索网

关于低碳钢试样拉伸至屈服时,有以下结论,正确的是( )

单选题

2021-09-01 16:47

A、应力和塑性变形很快增加,因而认为材料失效;
B、应力和塑性变形虽然很快增加,但不意味着材料失效
C、应力不增加,塑性变形很快增加,因而认为材料失效;
D、应力不增加,塑性变形很快增加,但不意味着材料失效

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正确答案

D

试题解析

标签：青书学堂平顶山学院机械电子工程(专升本) 机械制造装备设计(专升本)

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