不同材料基本力学性能,必须有统一的标准方法,测试结果才能相比较。为了使所研究的基本性能之间均有“可比性”,标准方法中必须对试验用的试样、试验环境条件、试验的加载速度等等条件加以科学地确定和规定。 试验的加载速度是能将各种试验予以“统一”的参数之一。这一参数在弯曲试验中表现得比较复杂。为此,有必要对弯曲试验的加载速度进行研究。各国标准方法中有关规定的差 The basic mechanical properties of different materials, there must be a unified standard method, the test results can be compared. In order to make “comparability” between the basic properties studied, the standard method must be scientifically defined and regulated for the test sample, the test environmental conditions, the test loading speed and so on. The loading speed of the test is one of the parameters that can “unify” the various tests. This parameter is more complicated in the bending test. For this reason, it is necessary to study the loading speed of the bending test. Differences in relevant national standard methods