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首页> 外文期刊>Journal of Materials Engineering and Performance >A Modified Isotropic-Kinematic Hardening Model to Predict the Defects in Tube Hydroforming Process
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A Modified Isotropic-Kinematic Hardening Model to Predict the Defects in Tube Hydroforming Process

机译：一种改性的各向同性 - 运动硬化模型，以预测管液压成形过程中的缺陷

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摘要

Numerical simulations of tube hydroforming process of hollow crankshafts were conducted by using finite element analysis method. Moreover, the modified model involving the integration of isotropic-kinematic hardening model with ductile criteria model was used to more accurately optimize the process parameters such as internal pressure, feed distance and friction coefficient. Subsequently, hydroforming experiments were performed based on the simulation results. The comparison between experimental and simulation results indicated that the prediction of tube deformation, crack and wrinkle was quite accurate for the tube hydroforming process. Finally, hollow crankshafts with high thickness uniformity were obtained and the thickness distribution between numerical and experimental results was well consistent.
机译：采用有限元分析法进行了空心曲轴管液压成形过程的数值模拟。 此外，涉及具有延性标准模型的各向同性 - 运动硬化模型的整合的改性模型用于更准确地优化工艺参数，例如内部压力，进料距离和摩擦系数。 随后，基于模拟结果进行液压成形实验。 实验和仿真结果之间的比较表明管变形，裂纹和皱纹的预测对于管液体成型过程非常准确。 最后，获得了具有高厚度均匀性的空心曲轴，数值和实验结果之间的厚度分布非常一致。

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