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A study on the fatigue crack growth behavior of thick aluminum panels repaired with a composite patch

机译:复合补片修复厚铝板疲劳裂纹扩展行为的研究

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摘要

Experimental investigations on the effect of composite material patch repairing were conducted to characterize the fatigue crack growth behavior in a thick A16061-T6 (6 mm) panels with a single sided fiber reinforced composite patch. Four different patch lengths and an un-patched plate were examined. Using three-dimensional finite element analysis, the stress intensity factors were calculated, from which the fatigue crack growth rates were experimentally measured. For the patched panels, different crack growth ratios according to the different plate thickness were investigated experimentally and analytically. The results demonstrate that the size of composite patch size affect fatigue life. While the crack reaches the patch end, retardation of crack growth is found in the bonded repair.
机译:进行了复合材料补片修复效果的实验研究,以表征具有单面纤维增强复合补片的厚A16061-T6(6 mm)面板中的疲劳裂纹扩展行为。检查了四个不同的贴片长度和一个未贴片的板。使用三维有限元分析,计算应力强度因子,从中实验测量疲劳裂纹的增长率。对于修补板,通过实验和分析研究了根据不同板厚的不同裂纹扩展率。结果表明,复合补片的尺寸会影响疲劳寿命。当裂纹到达贴片末端时,在粘结修复中发现裂纹扩展受阻。

著录项

  • 来源
    《Composite Structures》 |2003年第1期|p.1-7|共7页
  • 作者

    Ki-Hyun Chung; Won-Ho Yang;

  • 作者单位

    Department of Mechanical Engineering, SungKyunKwan University, 300 Chunchun-Dong, Jangan-Ku, Suwon 440-746, 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 工程材料学;
  • 关键词

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