...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Materials Science and Engineering >Effect of substrate modulus on the fatigue behavior of adhesively bonded joints
【24h】

Effect of substrate modulus on the fatigue behavior of adhesively bonded joints

机译：基体模量对胶接接头疲劳性能的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The effect of the substrate material on mode-I fatigue behavior of a toughened epoxy adhesive system was examined in terms of the substrate stiffness and curing residual stress. It was found that a change in adherend material from aluminum to steel caused a reduction in the fatigue performance; i.e. the threshold energy release rate decreased and the crack growth rate increased for a given applied energy release rate. The possibility that these observations were a result of adhesive curing residual stresses was studied experimentally and analytically, but it was found that such effects were relatively small. Finite element modeling showed that the fatigue results could be explained in terms of an increase in the crack tip stresses and an enlarged plastic zone due to the greater modulus of steel compared with aluminum. The local influence of the adherend modulus proved to be much more significant than the global effect of the adherend stiffness (product of modulus and moment of inertia). The effects of adherend modulus are expected to diminish as the phase angle increases.
机译：就基材刚度和固化残余应力而言，检查了基材材料对增韧环氧粘合剂体系的I型疲劳行为的影响。结果发现，从铝到钢的被粘物材料的变化会导致疲劳性能的降低。即，对于给定的施加能量释放速率，阈值能量释放速率降低而裂纹扩展速率增加。通过实验和分析研究了这些观察结果是粘合剂固化残余应力的结果的可能性，但是发现这种影响相对较小。有限元模型表明，疲劳结果可以用裂纹尖端应力的增加和由于钢的模量比铝大的塑性区扩大来解释。事实证明，被粘物模量的局部影响比被粘物刚度的整体效应（模量和惯性矩的乘积）要重要得多。随着相角的增加，被粘物模量的影响有望减小。

著录项

  • 来源
    《Materials Science and Engineering》 |2012年第1期|p.594-602|共9页
  • 作者

    S. Azari; A. Arneli; N.V. Datla; M. Papini; J.K. Spelt;

  • 作者单位

    Department of Mechanical and Industrial Engineering, University of Toronto, 5 King's College Road, Toronto, Ontario, Canada M5S 3C8;

    Department of Mechanical and Industrial Engineering, University of Toronto, 5 King's College Road, Toronto, Ontario, Canada M5S 3C8;

    Department of Mechanical and Industrial Engineering, University of Toronto, 5 King's College Road, Toronto, Ontario, Canada M5S 3C8;

    Department of Mechanical and Industrial Engineering, University of Toronto, 5 King's College Road, Toronto, Ontario, Canada M5S 3C8,Department of Mechanical and Industrial Engineering, Ryerson University, 350 Victoria Street, Toronto, Ontario, Canada M5B 2K3;

    Department of Mechanical and Industrial Engineering, University of Toronto, 5 King's College Road, Toronto, Ontario, Canada M5S 3C8;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    finite element method; toughened epoxy; adhesive joint; fatigue; residual stresses;

    机译：有限元法增韧环氧树脂;胶接疲劳;残余应力;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号