collapse test

3 on the basis of the similarity theory, and safety bearing capacity test and collapse test were completed by means of this model.

井架压溃试验发现:井架破坏发生在井架上段;实测井架模型大钩极限载荷为19。

A impact tester and a repeating press tester have been used to evaluate the mechanical properties of the multilayer.

采用磁控溅射技术在TC4钛合金表面制备Cu/Ni多层膜,利用多冲和动态循环压压试验装置对膜层的力学性能进行了评价,探讨了冲击条件、多层膜调制周期及结构等对多层膜失效行为的影响,比较了多层膜和单层Cu、Ni膜在多冲条件下的失效行为,以及多冲与循环压压载荷对多层膜失效行为的影响。