液压成形双极板的数值研究

IF 0.5 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

International Journal of Materials & Product Technology Pub Date : 2021-08-02 DOI:10.1504/ijmpt.2021.117032

Ayotunde Olayinka, W. J. Emblom

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引用次数: 0

摘要

使用LS-DYNA和其他非线性有限元软件包对成形过程进行模拟，使制造商能够优化工艺，而不会因执行多个实际工艺而产生浪费。本研究的目的是利用有限元分析，基于从液压膨胀试验中获得的毛坯的材料特性，研究用于生产质子交换膜燃料电池(PEMFC)双极板的退火AISI 304不锈钢的微尺度薄板液压成形(MSSH)。采用两种模具几何形状研究了液压成形压力和通道宽度对液压成形通道流场中应力和应变分布、板材减薄和退火后AISI 304板材厚度分布的影响。用实验结果验证了仿真结果。结果表明，有限元分析技术能准确地预测用mshh成形的AISI 304板的性能。

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Numerical investigation of bipolar plates manufactured using hydroforming process

Simulations of forming processes using LS-DYNA and other nonlinear finite element software packages enables manufacturers to optimise processes without the attending waste associated with performing multiple actual processes. The goal of this study was to use finite element analysis to investigate microscale sheet hydroforming (MSSH) of annealed AISI 304 stainless steel for producing bipolar plates for proton exchange membrane fuel cells (PEMFC) based on the material properties of the blank that were obtained from hydraulic bulge testing. Two die geometries were used to investigate the effect of hydroforming pressure and channel width on the distribution of stress and strain across the flow field of the hydroformed channels, sheet thinning and the thickness distribution for the annealed AISI 304 sheet metal blanks. The simulation results were verified using experimental results. The results show that FEA technique accurately predicts the behaviour of the AISI 304 bank formed using MSSH.

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来源期刊

International Journal of Materials & Product Technology 工程技术-材料科学：综合

CiteScore

0.80

自引率

0.00%

发文量

审稿时长

8 months

期刊介绍： The IJMPT is a refereed and authoritative publication which provides a forum for the exchange of information and ideas between materials academics and engineers working in university research departments and research institutes, and manufacturing, marketing and process managers, designers, technologists and research and development engineers working in industry.