Modeling the failure strength of debonded composite sandwich structure

Yi Hsin Nieh, Yen Kun Lai, Jia-Lin Tsai

研究成果: Conference contribution同行評審

摘要

The research aims to investigate the failure behaviors of the composite sandwich structures with debond defect subjected to compression loading. Experimental results revealed that the sandwich structures with either thick face-sheet or short debonded length exhibit higher failure strength. Moreover, when the debonded length is short, the failure is dominated by global buckling followed by core failure. Nevertheless, when the debonded length is long, the failure mechanism becomes the local buckling followed by the crack extension from the debond defect tip. The nonlinear finite element simulation was performed on the sandwich samples for the failure analysis. It was found that when the failure is dominated by the global buckling, the strength can be characterized using the maximum principal strain criterion. On the other hand, when the failure mode is local buckling, the failure strength can be predicted using the damage zone method.

原文English
主出版物標題16th European Conference on Composite Materials, ECCM 2014
發行者European Conference on Composite Materials, ECCM
ISBN(電子)9780000000002
出版狀態Published - 6月 2014
事件16th European Conference on Composite Materials, ECCM 2014 - Seville, Spain
持續時間: 22 6月 201426 6月 2014

出版系列

名字16th European Conference on Composite Materials, ECCM 2014

Conference

Conference16th European Conference on Composite Materials, ECCM 2014
國家/地區Spain
城市Seville
期間22/06/1426/06/14

指紋

深入研究「Modeling the failure strength of debonded composite sandwich structure」主題。共同形成了獨特的指紋。

引用此