Damage and fracture by delamination in a glass-epoxy composite under static and cyclic loading

被引：0
|
作者：
Laksimi, A. [1 ]
Cherfaoui, M. [1 ]
机构：
[1] Univ de Technologie de Compiegne
来源：
Materiaux et Techniques | 1988年 / 76卷 / 06期
关键词：
Acoustic emission testing - Materials testing--Fatigue - Microscopic examination - Plastics Laminates--Fracture;
D O I：
10.1051/mattech/198876060023
中图分类号：
学科分类号：
摘要：
A study of the mechanisms of delamination in a glass cloth/epoxy composite under static and cyclic loading is presented. The microscopic initiation is clearly pointed out by acoustic emission. The strain energy release rate is determined by compliance methods. R curves show that the glass cloth epoxy material is tough. In fatigue, the delamination grows according to the Paris law, and under variable loading the glass cloth/epoxy composite does not show significant memory effect. Microfractographic observation reveals the existence of fatigue striations in the fiber imprints and microcracks in the resin. Tomography shows a large damage zone ahead of the cracktip.
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页码：23 / 30
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