锻压技术

基于ABAQUS的汽车板材成形性能及变形规律研究

英文标题：Research on forming property and deformation regulation for automobile metal sheets based on ABAQUS

作者：海争平杨志红

单位：湖南交通职业技术学院

分类号：TG386.3

出版年,卷(期):页码：2016,41(6):26-31

摘要：

在板料液压成形过程中，由于流体压力的施加，对板材的受力状态会产生不同程度的影响，同时可以在一定范围内有效提高板材的成形性能。为了分析流体压力下板材成形性能的变化规律，基于有限元软件模拟软件ABAQUS，对不同流体压力条件下的2024铝合金的单向拉伸过程分别进行数值模拟研究，得出了流体压力对板材米塞斯应力分布、轴向应力分布、伸长率及颈缩区厚度的影响规律。研究结果表明，在流体压力作用下，板材的变形更加均匀；并随着流体压力的增大，板材表现出更大的变形潜力，可以达到更大的伸长量。

In sheet metal hydroforming, the stress state of the plate will be influenced by fluid pressure, which can effectively improve the forming performance of the sheet. To study the change law of sheet metal forming properties under fluid pressure, uniaxial tensile processes of aluminum alloy 2024 under different fluid pressures were numerically simulated by finite element software ABAQUS, and the influences of the fluid pressure on the sheet Mises stress distribution, axial stress distribution, elongation and neck shrinkage were obtained. The results show that under the action of fluid pressure, the deformation of the plate is more uniform, and the plate shows more deformation potential with the increase of fluid pressure, which can achieve a larger elongation.

基金项目：

基金项目:国家科技重大专项（2013ZX06004009）

作者简介：海争平（1968-），男，硕士，高级工程师 E-mail：haizhengping68@sina.com 通讯作者：杨志红（1969-），女，本科，高级工程师 E-mail：1140745304@qq.com

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