试验证明，自冲铆接工艺在连接铝合金时，无论是抗静拉力和抗疲劳性都要好于点焊工艺，因此，自冲铆接机在车身轻量化制造中有很好的应用前景。
Experiments show that Self-Piercing Riveting (SPR) is better than spot welding with regard to static strength and fatigue strength for aluminum alloys joining, SPR has a prominent application.
在上述静载试验基础上，进行了疲劳荷载作用下混凝土裂缝稳定扩展过程研究。
Based on the static experiment mentioned above, the research of stable crack growth process of concrete under fatigue loads was carried out.
试验结果表明，与传统加载所采用的胶布带相比，三种形式加载块的静强度、疲劳性能和加载速率均有明显提高。
The method met the demands of the strength and fatigue test tensile-press loading apply technique require of complex aircraft structure. Test results demonstrated that …
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