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基于粗糙集理论的焊接过程建模方法 被引量:1
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作者 王兵 陈善本 +1 位作者 黎文航 王建军 《控制理论与应用》 EI CAS CSCD 北大核心 2004年第3期411-414,共4页
针对目前焊接建模的状况,针对一种比较典型的焊接材料和焊接方法———铝合金脉冲钨极电弧(TIG)焊接,提出一种基于粗糙集理论的建模方法,并对建模过程的主要步骤和关键问题作了阐述.实验结果表明,该模型精度和复杂度可以接受.该方法拓... 针对目前焊接建模的状况,针对一种比较典型的焊接材料和焊接方法———铝合金脉冲钨极电弧(TIG)焊接,提出一种基于粗糙集理论的建模方法,并对建模过程的主要步骤和关键问题作了阐述.实验结果表明,该模型精度和复杂度可以接受.该方法拓展了粗糙集理论的应用领域,并为焊接建模提供了一种新方法,具有较大的应用潜力. 展开更多
关键词 焊接过程建模 粗糙集 铝合金脉冲钨极电弧(TIG)焊接
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Computational analysis of linear friction welding process and micromechanical modeling of deformation behavior for medium carbon steel
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作者 杨夏炜 李文亚 马铁军 《Journal of Central South University》 SCIE EI CAS CSCD 2015年第9期3275-3281,共7页
Finite element simulation of linear friction welding(LFW) medium carbon steel was carried out using the ABAQUS software. A two-dimensional(2D) coupled thermo-mechanical model was established. First, the temperature fi... Finite element simulation of linear friction welding(LFW) medium carbon steel was carried out using the ABAQUS software. A two-dimensional(2D) coupled thermo-mechanical model was established. First, the temperature fields of medium carbon steel during LFW process were investigated. And then, the Mises stress and the 1st, 2nd and 3rd principal stresses fields' evolution of the steel during LFW process were studied. The deformation behavior of LFW carbon steel was analyzed by using micromechanics model based on ABAQUS with Python code. The Lode parameter was expressed using the Mohr stress circle and it was investigated in detail. 展开更多
关键词 linear friction welding finite element method deformation behavior micromechanics model
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