The Effects of Numerical Result and Computing Time Due to Mass Scaling in Rolling Analysis
To enhance the structural performance for vehicle, a patch is attached. For various section shapes, each patch has different performance in energy absorption. In despite of efficient patch, formability may be a problem. Because the depth of groove is about 0.2mm, it needs a large FEM model for rolling analysis and has very small time step. We have to choose a method to reduce analysis time. This paper presents the effects of mass scaling in rolling analysis of a reinforcement patch for vehicle. We examined applicable mass or velocity scaling range. Besides to resolve severe mesh distortion in the sharp pattern forming, we apply efg formulation that is a new function in LS-DYNA version 970 and compare it with standard method.
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The Effects of Numerical Result and Computing Time Due to Mass Scaling in Rolling Analysis
To enhance the structural performance for vehicle, a patch is attached. For various section shapes, each patch has different performance in energy absorption. In despite of efficient patch, formability may be a problem. Because the depth of groove is about 0.2mm, it needs a large FEM model for rolling analysis and has very small time step. We have to choose a method to reduce analysis time. This paper presents the effects of mass scaling in rolling analysis of a reinforcement patch for vehicle. We examined applicable mass or velocity scaling range. Besides to resolve severe mesh distortion in the sharp pattern forming, we apply efg formulation that is a new function in LS-DYNA version 970 and compare it with standard method.
04-4.pdf
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