Welded joint geometry effect on fatigue crack growth resistance in different metallic materials

被引：15

作者：

Sedmak, Aleksandar ^{[1
]}

Hemer, Abubkr ^{[2
]}

Sedmak, Simon A. ^{[3
]}

Milovic, Ljubica ^{[2
]}

Grbovic, Aleksandar ^{[1
]}

Cabrilo, Aleksandar ^{[3
]}

Kljajin, Milan ^{[4
]}

机构：

[1] Univ Belgrade, Fac Mech Engn, Kraljice Marije 16, Belgrade, Serbia

[2] Univ Belgrade, Fac Technol & Met, Karnegijeva 4, Belgrade, Serbia

[3] Fac Mech Engn, Innovat Ctr, Kraljice Marije 16, Belgrade, Serbia

[4] Univ North, Univ Ctr Varazdin, Jurja Krizanica 31b, Varazhdin 42000, Croatia

来源：

INTERNATIONAL JOURNAL OF FATIGUE | 2021年 / 150卷

关键词：

xFEM; Welded joint geometry; Fatigue crack growth rate; Paris coefficients; SIMULATION; PROPAGATION;

D O I：

10.1016/j.ijfatigue.2021.106298

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Fatigue crack growth through different welded joint regions was investigated, in terms of welded joint geometry and fatigue crack position. In the first phase of investigation, numerical simulation of crack growth in a welded joint made of steel P460NL1 was performed using extended Finite Element Methods (xFEM). Numerical models employed Paris law, using experimentally determined coefficients for each welded joint zone. Weld geometry was varied by using different heat affected zone (HAZ) widths, i.e. fatigue crack lengths. The second stage involved similar numerical models with different material (Protac 500). Fatigue lives for regions in both models were then compared.

引用

页数：9

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