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

2022-01-10 14:56

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：化工机械与设备化学工程大学试题工学

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