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首页> 外文期刊>Engineering Fracture Mechanics >Discussion on 'Effect of out-of-phase loading on fretting fatigue response of Al7075-T6 under cyclic normal loading using a new testing apparatus' by F. Abbasi and GH Majzoobi
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Discussion on 'Effect of out-of-phase loading on fretting fatigue response of Al7075-T6 under cyclic normal loading using a new testing apparatus' by F. Abbasi and GH Majzoobi

机译：浅谈“使用新的检测装置”通过新检测装置对循环正常装载下AL7075-T6疲劳响应的影响疲劳反应的探讨“

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Fretting fatigue has been studied mainly with constant normal load. Abbasi and Majzoobi (2017) suggest an new testing method where contact pressure can be independently varied during the test. The authors compare the case of constant normal load, with that of in phase or 90 degrees and 180 degrees degrees out-of-phase loads, but at the same frequency. However, the results are not obvious to interpret, and it is hoped that a reply from the authors and a discussion could lead to some progress. In particular, contact mechanics (and even the authors' own numerical simulations) seem in contrast with some experiments. Also, the case of constant normal load is found to be the least damaging despite less frictional force is developed which seems to imply an oxidation phenomenon which depends on greater exposure to air, but the time of tests seems similar. If these surprising effects are confirmed, this varying normal load effect calls for some new models in fretting. Or there is something wrong in the experiments?
机译：已经研究了疲劳疲劳，主要是恒定的正常载荷。 ABBASI和MAJZOOBI（2017）建议了一种新的测试方法，其中在测试期间接触压力可以独立变化。作者比较恒定正常负载的情况，具有相位或90度和180度的相位载荷，但在相同的频率下。然而，结果无法解释结果，希望提交人和讨论的回复可能导致一些进展。特别是，与一些实验相比，接触力学（甚至作者自己的数值模拟）似乎相反。而且，发现恒定正常载荷的情况是尽管开发了较少的摩擦力，但似乎暗示了氧化现象的氧化现象似乎是较少的摩擦力，但是测试的时间似乎相似。如果确认了这些令人惊讶的效果，这种不同的正常负载效果要求一些新模型在烦恼中。或者实验中有什么不对？

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