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Author:

韩文彪 (韩文彪.) | 孙国芹 (孙国芹.) (Scholars:孙国芹)

Abstract:

本文对7075铝合金搅拌摩擦焊接接头做了变幅多级加载下的疲劳试验,分别对各加载水平下的试件表面裂纹萌生扩展情况进行了研究,发现在每个不同的加载载荷下,在接头不同区域会萌生出裂纹,而在载荷过渡阶段,在前一载荷水平下相应区域萌生的裂纹扩展或减缓或停滞,转而在另一区域萌生出新的裂纹,并且无论低高还是高低加载,第二级载荷水平下所经历的循环数较恒幅下均有明显提高。

Keyword:

裂纹扩展 搅拌摩擦焊 疲劳

Author Community:

  • [ 1 ] 北京工业大学机械工程与应用电子技术学院

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Source :

Year: 2020

Language: Chinese

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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