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Fatigue behaviour of metal pin-reinforced composite single-lap joints in a hygrothermal environment

机译：湿热环境中金属销增强复合单搭接接头的疲劳行为

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摘要

In this study, the fatigue behaviour of stainless steel pin-reinforced cocured composite single-lap joints in a hygrothermal environment was experimentally investigated. Specimens were exposed to a temperature of 71 ℃ and a relative humidity of 85% until moisture saturation was achieved. Fatigue tests were conducted on the specimens in three different environmental conditions (RTD, room temperature and dry, ETD, elevated temperature and dry; and ETW, elevated temperature and wet). Tension-tension cyclic loads were applied to the specimens with a stress ratio of 0.5 and the maximum stress levels ranging from 50% to 90% of the static strengths of the joints. The results showed that the fatigue strength of a z-pinned joint at a million cycles of repeated loads was improved up to 48.3% compared to that of a joint without z-pins for the ETW condition.
机译：在这项研究中，实验研究了在湿热环境下不锈钢销增强的共固化复合单搭接接头的疲劳行为。将样品暴露于71℃的温度和85％的相对湿度下直到水分饱和。在三种不同的环境条件（RTD，室温和干燥，ETD，高温和干燥； ETW，高温和湿润）下对样品进行了疲劳测试。拉伸-拉伸循环载荷以0.5的应力比施加到试件上，最大应力水平为接头静态强度的50％至90％。结果表明，在ETW条件下，与无Z销的接头相比，Z销的接头在百万次重复载荷循环下的疲劳强度提高了48.3％。

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  • 来源
    《Composite Structures》 |2014年第2期|151-160|共10页
  • 作者

    Han-Gi Son; Yong-Bin Park; Jin-Hwe Kweon; Jin-Ho Choi;

  • 作者单位

    Department of Aerospace Engineering, Research Center for Aircraft Parts Technology, Gyeongsang National University, Jinju, Gyeongnam 660 701, South Korea;

    Department of Aerospace Engineering, Research Center for Aircraft Parts Technology, Gyeongsang National University, Jinju, Gyeongnam 660 701, South Korea;

    Department of Aerospace Engineering, Research Center for Aircraft Parts Technology, Gyeongsang National University, Jinju, Gyeongnam 660 701, South Korea;

    School of Mechanical Engineering, Research Center for Aircraft Parts Technology, Cyeongsang National University, Jinju, Gyeongnam 660 701, South Korea;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Z-pinning; Cocure; Joint; Fatigue; Hygrothermal condition;

    机译：Z钉扎;固化联合;疲劳;湿热条件;

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