首页> 外文期刊>Acta Mechanica et Automatica >Application of a SPH Coupled FEM Method for Simulation of Trimming of Aluminum Autobody Sheet
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Application of a SPH Coupled FEM Method for Simulation of Trimming of Aluminum Autobody Sheet

机译:SPH耦合有限元法在铝合金车身饰件修边仿真中的应用。

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In this paper, the applications of mesh-free SPH (Smoothed Particle Hydrodynamics) continuum method to the simulation and analysis of trimming process is presented. In dealing with shearing simulations for example of blanking, piercing or slitting, existing literatures apply finite element method (FEM) to analysis of this processes. Presented in this work approach and its application to trimming of aluminum autobody sheet allows for a complex analysis of physical phenomena occurring during the process without significant deterioration in the quality of the finite element mesh during large deformation. This allows for accurate representation of the loss of cohesion of the material under the influence of cutting tools. An analysis of state of stress, strain and fracture mechanisms of the material is presented. In experimental studies, an advanced vision-based technology based on digital image correlation (DIC) for monitoring the cutting process is used.
机译:在本文中,提出了无网格SPH(平滑粒子流体动力学)连续体方法在修整过程的仿真和分析中的应用。在处理剪切模拟(例如落料,穿孔或纵切)时,现有文献将有限元方法(FEM)应用于该过程的分析。在这种工作方法中提出的方法及其在铝车身板修整中的应用允许对过程中发生的物理现象进行复杂的分析,而不会在大变形期间显着降低有限元网格的质量。这样就可以准确表示在切削工具的影响下材料的内聚力损失。介绍了材料的应力,应变和断裂机理的状态分析。在实验研究中,使用了基于数字图像相关性(DIC)的先进的基于视觉的技术来监视切割过程。

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