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銀大塑性變形的有限元模擬
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“973”計(jì)劃前期研究專項(xiàng)（2008CB617609）；國家自然科學(xué)基金（50361003）；云南省應(yīng)用基礎(chǔ)研究計(jì)劃重點(diǎn)項(xiàng)目（2006E0003Z）


Finite Element Simulation of Silver Severe Plastic Deformation
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    摘要:

    應(yīng)用CAE(computer aided engineering)模擬仿真軟件MSC.Marc，采用熱力耦合彈塑性有限元分析模塊，對純銀的擠壓過程進(jìn)行計(jì)算機(jī)模擬仿真。對擠壓過程中銀的流動(dòng)情況進(jìn)行分析，得出銀的擠壓流線與實(shí)際的情況相符，說明采用有限元軟件模擬金屬流動(dòng)過程是可行的；對擠壓過程中銀所受到的應(yīng)力應(yīng)變進(jìn)行分析，得出銀在變形區(qū)內(nèi)受到的應(yīng)力最大，而銀變形最劇烈的地方是從變形區(qū)進(jìn)入定徑帶的部位。

    Abstract:

    The extrusion process of silver was simulated by thermal coupling elastic-plastic finite element analysis module, using the CAE (Computer Aided Engineering) simulation software package-MSC.Marc. By analyzing the flow situation of the silver in the extrusion process, it is found that the simulated extrusion flow line agrees with the experimental, which shows that it is feasible to simulate metal flowing process by the finite element software. The stress and the strain in this extrusion process were analyzed. The biggest stress of the silver is in the deforming region. However, the zone from the deforming region to the calibrating strap is the most intense deformed zone.

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許福太,陳敬超,劉滿門,武淑珍,于 杰.銀大塑性變形的有限元模擬[J].稀有金屬材料與工程,2009,38(10):1761~1764.[Xu Futai, Chen Jingchao, Liu Manmen, Wu Shuzhen, Yu Jie. Finite Element Simulation of Silver Severe Plastic Deformation[J]. Rare Metal Materials and Engineering,2009,38(10):1761~1764.]
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  • 收稿日期:2008-11-19
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