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An Analysis of Dent Formation by Dynamic Finite Element Method

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Fig. 1 Configuration of the analysis model
Fig. 3은  판넬이  충격볼과  충돌하는  국부에서의  요소의  크기를  바꾸어  가면서  해석한  결과를  보여준 다. 그래프에서  알  수  있듯이  덴트량이  두께/길이의  비가  0.1이후  급격히  감소하다가  0.5이후  안정화  되 는  것을  확인할  수  있다
Fig. 6 Predicted dent displacement for various values of  sheet curvature
Table 4 Parameter values of Johnson-Cook model used in  the parameter study
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