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首页> 外文期刊>Journal of Materials Science >Effects of changes in temperature on fatigue crack growth of adhesively bonded Al 2080/SiC/20p-2080 Al laminated composites
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Effects of changes in temperature on fatigue crack growth of adhesively bonded Al 2080/SiC/20p-2080 Al laminated composites

机译：温度变化对粘接的Al 2080 / SiC / 20p-2080 Al层压复合材料疲劳裂纹扩展的影响

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摘要

The effects of changes in test temperature from 25 to - 125degreesC on the fatigue crack propagation of 2080/SiC/20p-2080 adhesive bonded laminates (ABL) with volume fraction ratio of 60/40 tested in the crack arrestor orientation were investigated. The fatigue behavior of the laminates was significantly different than that of the individual laminae as well as other types of laminates (i.e., diffusion bonded laminates). The fatigue crack growth behavior of the ABL's was significantly affected by the test temperature, particularly when the fatigue cracks approached and entered the adhesive layers. In-situ monitoring of fatigue crack growth and post mortem analyses were used to determine the likely source(s) of the effects of changes in test temperature and differences between the ABL and its constituents. (C) 2004 Kluwer Academic Publishers.
机译：研究了试验温度从25摄氏度变化到-125摄氏度对2080 / SiC / 20p-2080粘结层压板（ABL）的疲劳裂纹扩展的影响，该体积分数比率为60/40的材料在裂纹抑制器方向上进行了测试。层压板的疲劳性能与单个薄片以及其他类型的层压板（即扩散粘结层压板）的疲劳性能明显不同。测试温度显着影响ABL的疲劳裂纹扩展行为，特别是当疲劳裂纹接近并进入粘合剂层时。疲劳裂纹扩展的原位监测和事后分析被用于确定测试温度变化以及ABL及其成分之间差异的影响的可能来源。 （C）2004 Kluwer学术出版社。

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