A simple strategy to perform mixed-mode I plus II fatigue/fracture characterisation of composite bonded joints

被引：5
|
作者：
Moreira, R. D. F. [1 ,2 ]
de Moura, M. F. S. F. [2 ]
Silva, F. G. A. [1 ]
Reina, J. P. A. [2 ]
Rodrigues, T. M. S. [1 ]
机构：
[1] INEGI Inst Ciencia & Inovacao Engn Mecan & Engn I, Rua Dr Roberto Frias 400, P-4200465 Porto, Portugal
[2] Univ Porto, Dept Engn Mecan, Fac Engn, Rua Dr Roberto Frias, P-4200465 Porto, Portugal
来源：
INTERNATIONAL JOURNAL OF FATIGUE | 2022年 / 158卷
关键词：
Composite bonded joints; Fatigue; fracture characterisation; Mixed-mode I plus II loading; High-cycle fatigue CZM; Fatigue life prediction; FATIGUE-CRACK GROWTH; COHESIVE ZONE MODEL; HIGH-CYCLE FATIGUE; LIFE PREDICTION; DAMAGE;
D O I：
10.1016/j.ijfatigue.2022.106723
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
This work addresses a simple methodology to perform fatigue/fracture characterisation under mixed-mode I+II of composite bonded joints. The asymmetrical double cantilever beam and asymmetrical single-leg bending fatigue/fracture tests were considered to address mode-mixities with predominance of mode I and II, respectively. The modified Paris laws coefficients were correlated with the ones of other tests defining suitable relations describing the evolution of these coefficients as function of mode-mixity. These functions were input in a cohesive zone model appropriate for high-cycle fatigue under mixed-mode loading. It was observed that numerical fatigue lives and Paris laws are in accordance with the experimental results.
引用
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页数：7
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