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Damping – Oscillation Elimination after the Rupture

The subject of this article is using of the Damping for Oscillation elimination after the Rupture. The problem was in explicit simulations of the plastic parts with computational damage material model. After the rupture or erosion of finite elements the model of the structure oscillated. The oscillation of the structure was distinguished and caused additional erosion of the structure, but this damage was non-physical. All real structures have any damping and this damping should be consider in numerical simulation. We have a lot of possibilities of the damping options, but we need to know the correct value of the damping. So, in this contribution is describe very simple method for damping factor estimation for plastics, concretely TSCP (Typical Semi-Crystal Polymer). This method is combination of numerical simulations and experimental estimation of the damping factor for specific own frequency. The recurrence of this method with different boundary conditions we can cover some frequency spectrum. The contribution shows a lot of the damping options in LS-DYNA with interest consequences. Using of different damping scheme requests dissimilar change of the stiffness and model properties. The purpose of our focusing is preservation of the same physical, material and stiffness properties of the model like as physical structure. The physical structure of FSM (Fuel Supply Module) is used for numerical validation and practice using of damping in computational simulation.