不同硬化模型对第3代超高强度钢板冲压回弹预测的比较

doi:10.16183/j.cnki.jsjtu.2017.11.008

摘要/Abstract

摘要： 针对第3代高强度钢(QP钢)冲压过程中因回弹严重、回弹预测困难而导致的修模时间长、修模成本高等问题，采用了Swift各向同性硬化模型以及NSK模型、Y-U模型和Chaboche模型等先进的硬化模型对QP980钢的冲压回弹进行了预测.用含有上述4种模型的LS-DYNA软件进行预测，并将结果与实际结果比较分析，发现Y-U模型能较好地预测QP钢冲压回弹.由此可以有效地辅助模具设计，减少修模次数，降低修模成本.

关键词: 超高强度钢, 回弹预测, 硬化模型

Abstract: Serious springback and inaccurate springback prediction can lead to problems of high expenses of both money and time during the adjustment of mold. Thus, several advanced hardening models such as Swift isotropic hardening model, NSK model, Y-U model and Chaboche model were used to estimate the springback prediction of QP980 steel stamping. Software LS-DYNA which contains the four models was used to simulate the prediction, and the simulation results were compared with the experiment results. It was found that Y-U model can provide a better prediction for the springback of QP steel stamping. Y-U model can be used in the adjustment of mold so that the adjusting time and cost can be reduced.

Key words: ultra high strength steel (UHSS), springback prediction, hardening model

中图分类号:

TG 386.3

晏佳伟，胡启，王振振，陈军. 不同硬化模型对第3代超高强度钢板冲压回弹预测的比较[J]. 上海交通大学学报（自然版）, 2017, 51(11): 1334-1339.

YAN Jiawei，HU Qi，WANG Zhenzhen，CHEN Jun. A Comparison Study of Different Hardening Models in Springback Prediction for Stamping of the Third Generation Ultra High Strength Steel [J]. Journal of Shanghai Jiaotong University, 2017, 51(11): 1334-1339.

参考文献

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