| 板带钢热连轧及微观组织演变非线性三维仿真 |
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| 引用本文： | 李平,庄茁,李殿中,黄成江.板带钢热连轧及微观组织演变非线性三维仿真[J].力学与实践,2002,24(3):0-0. |
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| 作者姓名： | 李平 庄茁 李殿中 黄成江 |
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| 作者单位： | 1. 清华大学工程力学系,北京,100084
2. 中科院金属研究所,沈阳,110015 |
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| 基金项目： | 国家基础科学研究项目(973)990812资助． |
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| 摘 要： | 普碳钢热连轧成形过程是一个高度非线性的问题，存在几何非
线性，材料非线性和接触非线性. 本文针对上海宝钢2050热连轧生产
线进行研究，通过实验确定SS400钢的真应力-应变曲线，确定该钢种
的变形抗力与温度、应变、应变率的关系，对有限元软件ABAQUS进行
二次开发，将率相关的各向同性强化变形抗力模型写入用户材料子程
序，对轧制过程中的温度场，应力-应变场进行完全热力耦合的分析.
同时，对轧制过程中工件微观组织(晶粒度)的演变过程进行数值模拟，
从而为保证成形件的质量、制定合理的成形工艺等提供可靠依据，同
时为最终实现产品性能的在线数值预报奠定基础.
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| 关 键 词： | 非线性有限元 热力耦合 热连轧 微观组织演变 |
| 修稿时间： | 2001年6月29日 |
NONLINEAR THREE-DIMENSIONAL SIMULATION FOR HOT CONTINUOUS ROLLING OF STRIP STEEL |
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| LI Ping ZHUANG Zhuo.NONLINEAR THREE-DIMENSIONAL SIMULATION FOR HOT CONTINUOUS ROLLING OF STRIP STEEL[J].Mechanics and Engineering,2002,24(3):0-0. |
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| Authors: | LI Ping ZHUANG Zhuo |
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| Institution: | LI Ping ZHUANG ZhuoDepartment of Engineering Mechanics,TsinghuaUniversity Beijing 100084,ChinaLI Dianzhong HUANG ChengjiangMetal Research Institute,Chinese Academy ofSciences,Shenyang 110015,China |
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| Abstract: | Hot continuous rolling of plain-carbonsteel is a process of high non-linearity, involving ge-ometric, material and contact non-linearity. Thispaper focuses on 2050 hot continuous rolling pro-duction line of Shanghai Bao Steel Plant. Throughexperiments, the true stress-strain curve can be de-termined. So the relationship of resistance of de-formation with temperature, strain and strain-ratecan be obtained. Using rate-dependent deformationresistance model, we have developed a user materialsubroutine for FE software ABAQUS. Fully coupledtemperature and stress analysis has been carriedout for temperature, stress and strain field. Thenumerical simulation for micro-structural evolutionhas also been completed. Therefore, the quality ofproduct can be guaranteed and a foundation for set-ting reasonable shaping techniques can be provided.Finally it provides a foundation for the on-line pre-diction. |
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| Keywords: | non-linear finite element tempera-ture and stress couples hot continuous rolling mi-crostructure evolution |
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