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热轧H型钢焊接残余应力数值模拟 被引量:1
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作者 于辰 梁清香 +1 位作者 崔小朝 张柱 《太原科技大学学报》 2018年第5期405-410,共6页
热轧H型钢是一种断面力学性能优良的经济型断面钢材,而焊接是常用的对接方式之一,因此研究不同焊缝形式下的残余应力分布,对提高钢结构的承载力有重要意义。利用ANSYS有限元软件对H型钢五种平接焊缝形式下的残余应力进行了数值模拟,得... 热轧H型钢是一种断面力学性能优良的经济型断面钢材,而焊接是常用的对接方式之一,因此研究不同焊缝形式下的残余应力分布,对提高钢结构的承载力有重要意义。利用ANSYS有限元软件对H型钢五种平接焊缝形式下的残余应力进行了数值模拟,得出了一些有意义的结论,为热轧H型钢的应用提供有价值的参考。 展开更多
关键词 热轧H型钢 残余应力 钢结构 数值模拟
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Fluid Flow and Solidification Simulation in Beam Blank Continuous Casting Process With 3D Coupled Model 被引量:14
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作者 YANG Jian-wei DU Yan-ping +1 位作者 SHI Rong cui xiao-chao 《Journal of Iron and Steel Research International》 SCIE EI CAS CSCD 2006年第4期17-21,共5页
Based on turbulent theory, a 3D coupled model of fluid flow and solidification was built using finite difference method and used to study the influence of superheating degree and casting speed on fluid flow and solidi... Based on turbulent theory, a 3D coupled model of fluid flow and solidification was built using finite difference method and used to study the influence of superheating degree and casting speed on fluid flow and solidification, analyze the interaction between shell and molten steel, and compare the temperature distribution under different technological conditions. The results indicate that high superheating degree can lengthen the liquid-core depth and make the crack and breakout possible, so suitable superheating should be controlled within 35℃ according to the simulation results. Casting speed which is one of the most important technological parameters of improving production rate, should be controlled between 0. 85 m/min and 1.05 m/min and the caster has great potential in the improvement of blank quality. 展开更多
关键词 beam blank continuous casting flow field temperature distribution coupled model SOLIDIFICATION
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