Experimental and extended finite element simulations for tensile fracture phenomenon of cryorolled aluminium alloy 5754

被引：3

作者：

Kumar, Pankaj ^{[1
]}

机构：

[1] Natl Inst Technol Goa, Dept Mech Engn, Ponda, India

来源：

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE | 2022年 / 236卷 / 05期

关键词：

Extended finite element method; cryorolling; post annealing heat treatment; triaxial state of stress; crack propagation; MECHANICAL-PROPERTIES; STRESS-TRIAXIALITY; CRACK-GROWTH; NUMERICAL INVESTIGATIONS; MG; BEHAVIOR; MICROSTRUCTURE; STRAIN; TEMPERATURE; PRECIPITATION;

D O I：

10.1177/09544062211028270

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In present work, cryorolling is performed to obtain the higher mechanical strength of the received material. Close to 50% and 30% increments in tensile and yield strengths of the material are observed for 40% thickness reduction. However, limited ductility has been obtained for cryorolled samples. Post annealing heat treatment is performed on cryorolled samples to obtain combined enhancement in strength and ductility of the alloy. Difference in the ductile fracture along with crack initiation and its advancement with plastic straining is also compared for cryorolled and annealed cryorolled samples. Fracture angle and crack propagation behavior at vicinity of gauge section is evaluated by using extended finite element method (XFEM) and compared with experimental tested work piece. XFEM has been adopted to simulate the crack growth behavior from nucleation till fracture of the investigated alloy. Triaxial stress contour plots are also captured by XFEM near to the crack initiation zone.

引用

页码：2488 / 2498

页数：11

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