Deformation response research on aluminum sheets with different central pre-cracked defects under quasi-static hydraulic pressure loading

被引：2

作者：

Jiang, Xiongwen ^{[1
]}

Tang, Yu ^{[1
]}

Wei, Hongjian ^{[1
]}

Li, Yue ^{[1
]}

Xie, Wenbo ^{[2
]}

Li, Dacheng ^{[3
]}

Zhang, Wei ^{[1
]}

机构：

[1] Harbin Inst Technol, High Veloc Impact Dynam Lab, Harbin 150001, Peoples R China

[2] Powerchina Kunming Engn Corp Ltd, Airport Planning & Design Res Inst, Kunming 650051, Peoples R China

[3] Aircraft Strength Res Inst China, Aviat Key Lab Sci & Technol Struct Impact Dynam, Xian 710065, Peoples R China

来源：

THIN-WALLED STRUCTURES | 2023年 / 184卷

基金：

中国国家自然科学基金;

关键词：

Bulge test; Pre-cracked sheet; Spherical crown membrane large deformation; (SCMLD); Perturbation theory of elastic large; deformation (PTLD); Fracture energy; Stiffness degradation; CRACK-PROPAGATION; XFEM; PLATES; FRAGMENTS; BLAST;

D O I：

10.1016/j.tws.2022.110443

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The crack behavior and bending deformation of pre-cracked sheet are coupled under the pressure loading. Two theoretical methods (SCMLD and PTELD) were used to compare and verify the bulge test data of intact aluminum alloy sheets, and the applicability of the two methods in equilibrium bulge test were discussed. ABAQUS extended finite element method (XFEM) and the parameters of fracture energy based on experiments were used to simulate the bulging deformation and failure behavior of pre-cracked sheet, the results agreed with the experimental test data well. What is more, the slope of h - p curve reflects the equivalent bending stiffness, which is affected by the crack shape length rather but not the crack shape.

引用

页数：19