Experimental and numerical analysis of the tensile test using sheet specimens

被引：105

作者：

Cabezas, EE ^{[1
]}

Celentano, DJ ^{[1
]}

机构：

[1] Univ Santiago Chile, Dept Ingn Mecan, Santiago, Chile

来源：

FINITE ELEMENTS IN ANALYSIS AND DESIGN | 2004年 / 40卷 / 5-6期

关键词：

tensile test; mechanical characterization; sheet specimens; large strains; plasticity; finite element formulations;

D O I：

10.1016/S0168-874X(03)00096-9

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

This paper presents an experimental and numerical study of the mechanical behaviour of SAE 1045 steel sheet specimens during the conventional tensile test. Due to the complex stress state that develops at the neck for high levels of axial deformation, an experimental-numerical methodology is proposed in order to derive the elastic and hardening parameters which characterize the material response. Such methodology is essentially an extension to sheet samples of the well established procedure used for cylindrical ones. The simulation of the deformation process during the whole test is performed with a finite element large strain elastoplasticity-based formulation. Finally, the experimental validation of the obtained numerical results allows to assess the performance of the proposed methodology for the 3D analysis of sheet specimens and, in addition, to discuss the range of applicability of plane stress conditions. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：555 / 575

页数：21