Schematically , show what happens if you load the specimen just below its yield tensile strength point and then unload to zero, Will the specimen behave differently if you load it again ? Explain.
其实是我要做一个作业。。
这是原题~
只卸载和加载一次,我觉得没有变化,但不太确定。好像又是会使强度略微提高?你觉得呢?
在屈服强度以下,会有加工硬化么?