A new method for determination of fatigue limit of composite laminates based on thermographic data

被引：14
作者：
Jia, Zijiao [1 ,2 ]
Pastor, Marie-Laetitia [1 ]
Garnier, Christian [2 ]
Gong, Xiaojing [1 ]
机构：
[1] Univ Toulouse, Inst Clement Ader ICA, CNRS, UMR 5312, 1 rue Lautreamont, F-65000 Tarbes, France
[2] Univ Toulouse, INP ENIT, LGP, 47 Ave Azereix, F-65016 Tarbes, France
来源：
INTERNATIONAL JOURNAL OF FATIGUE | 2023年 / 168卷
关键词：
Fatigue limit; Infrared thermography; Composite laminates; AZ31B MAGNESIUM ALLOY; RAPID-DETERMINATION; INFRARED THERMOGRAPHY; LIFE PREDICTION; BEHAVIOR; RELIABILITY; DAMAGE; CURVE; JOINT; TESTS;
D O I：
10.1016/j.ijfatigue.2022.107445
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
In this paper, a new fatigue limit determination method based on the thermographic data is proposed to over-come the limit of Risitano and Luong's method. The maximum stress corresponding to peak value of the angle change normalized by its amplitude is defined as the fatigue limit. The method was evaluated by the experi-mental data of Multidirectional (MD) CFRP laminates in this study, and by the data found in the literature for different materials. The analyze of the results from different methods demonstrated that this method can effectively apply to determine the fatigue limit of composite laminates whatever their stacking sequence is.
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页数：10
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