铝
结构工程
材料科学
有限元法
复合数
强度因子
巴黎法
概率逻辑
极限抗拉强度
可靠性(半导体)
优化设计
复合材料
断裂力学
计算机科学
工程类
裂缝闭合
机器学习
物理
量子力学
人工智能
功率(物理)
作者
H. Errouane,N. Deghoul,Z. Sereir,Alaa Chateauneuf
出处
期刊:Structural Engineering and Mechanics
[Techno-Press]
日期:2017-01-01
被引量:4
标识
DOI:10.12989/sem.2017.61.3.325
摘要
In the present study, a numerical model for probability analysis of optimal design of fatigue non-uniform crack growth behaviour of a cracked aluminium 2024 T3 plate repaired with a bonded composite patch is investigated. The proposed 3D numerical model has advanced in literatures, which gathers in a unique study: problems of reliability, optimization, fatigue, cracks and repair of plates subjected to tensile loadings. To achieve this aim, a finite element modelling is carried out to determine the evolution of the stress intensity factor at the crack tip Paris law is used to predict the fatigue life for a give n crack. To have an optimal volume of our patch satisfied the practical fatigue life, a procedure of optimization is proposed. Finally, the probabilistic analysis is performed in order to a show that optimized patch design is influenced by uncertainties related to mechanical and geometrical properties during the manufacturing process.
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