A Novel Experimental System for Characterizing Interface Delamination under Mixed-Mode Fatigue Loading

Tz Cheng Chiu, Wei Lu, Chi An Hua, Chia Kuei Hsu

研究成果: Conference contribution

摘要

A mixed mode bending experimental system is developed for quantifying the subcritical debond growth behavior and establishing the fatigue crack growth rate models for materials interfaces of interest under a full spectrum of loading mode mixity. In the fatigue debond growth experiment, the control program calculates and adjusts the applied bending forces to maintain a constant phase angle at the prescribed value. The relationship between crack growth rate and the applied strain energy release rate is obtained by post-processing the experimental results with analytically derived equations. Fatigue growth characteristics of the Al-epoxy interface under various mode mixities were investigated. The steady-state cyclic fatigue delamination growth is found to exhibit a power-law dependence on the applied strain energy release rate range. A phase-Angle dependent fatigue crack growth model was constructed from fitting the steady-state cyclic fatigue delamination growth responses. The subcritical debond growth model can be combined with delamination driving forces obtained for real structures containing the interface of interest to predict the fatigue crack growth behavior and the corresponding structural reliability.

原文English
主出版物標題Proceedings - ECTC 2016
主出版物子標題66th Electronic Components and Technology Conference
發行者Institute of Electrical and Electronics Engineers Inc.
頁面1970-1976
頁數7
ISBN(電子)9781509012039
DOIs
出版狀態Published - 2016 八月 16
事件66th IEEE Electronic Components and Technology Conference, ECTC 2016 - Las Vegas, United States
持續時間: 2016 五月 312016 六月 3

出版系列

名字Proceedings - Electronic Components and Technology Conference
2016-August
ISSN(列印)0569-5503

Other

Other66th IEEE Electronic Components and Technology Conference, ECTC 2016
國家/地區United States
城市Las Vegas
期間16-05-3116-06-03

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 電氣與電子工程

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