Fatigue crack growth properties of carbon-polyamide 6 thermoplastic composites using a multi-G control method

被引：5
作者：
Arhant, Mael [1 ]
Lolive, Eric [2 ]
Bonnemains, Thomas [2 ]
Davies, Peter [1 ]
机构：
[1] IFREMER, Marine Struct Lab, Ctr Bretagne, Plouzane, France
[2] Univ Bretagne Occidentale UBO, CNRS, UMR 6027, Inst Rech Dupuy Lome IRDL, Brest, France
来源：
ENGINEERING FRACTURE MECHANICS | 2021年 / 252卷
关键词：
Thermoplastic composites; Mode I; Fatigue crack growth; INTERLAMINAR FRACTURE-TOUGHNESS; MODE-I; DELAMINATION RESISTANCE; GRAPHITE-EPOXY; STRESS RATIO; PROPAGATION; BEHAVIOR; GLASS; WATER;
D O I：
10.1016/j.engfracmech.2021.107825
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The present paper presents a new multi-AG control approach to perform mode I fatigue crack growth tests using several constant cyclic energy release rate ranges (AG) on only one specimen. It was successfully applied on carbon/polyamide 6 unidirectional composite specimens. After validation checks on the approach, results show that the crack propagation behaviour exhibits three different crack propagation regimes that can be accurately described using the HartmanShijves equation. This work has shown that the multi-AG control method can provide reliable crack growth propagation results and a complete AG versus cycles description.
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页数：14
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