Crack propagation methodology under complex loadings

被引：3

作者：

Dompierre, Benoit ^{[1
]}

Mesbah, Majid ^{[1
]}

Wyart, Eric ^{[1
]}

机构：

[1] Cenaero ASBL, B-6041 Gosselies, Belgium

来源：

ENGINEERING FRACTURE MECHANICS | 2015年 / 142卷

关键词：

Combined cycle fatigue; Spectrum loading; Crack growth; XFEM; Level set; FINITE-ELEMENT-METHOD; STRESS INTENSITY FACTORS; COMBINED-CYCLE FATIGUE; MESHFREE METHOD; GROWTH; COMPUTATION; FE/XFE; DAMAGE;

D O I：

10.1016/j.engfracmech.2015.06.027

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

In this paper, a novel methodology for analyzing crack propagation under complex loadings is presented. It includes various kinds of complexities such as multiple non-proportional load cases, LCF/HCF interaction, eigenmode actualization and load spectrum under proportional loading. After being validated on simple test cases, this methodology is applied on two full-scale industrial cases. The results demonstrate that this methodology, when compared to simulations using simplified load cases, has a great impact on fatigue life assessment. This methodology achieves higher accuracy and more representative results and therefore can lead to more radical optimization in a design process. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：287 / 302

页数：16

共 55 条

[1] XLME interpolants, a seamless bridge between XFEM and enriched meshless methods [J].