Abstract

The accuracy of numerical result depends on many factors, among which is the selection of appropriate element size. An optimum mesh size is capable in reducing the percentage error and computational time consumption. In this study, a numerical tool i.e AUTODYN 3D is used to determine the optimum element size for the soil barrier subjected to air blast load. The pressure results on barrier surface obtained through one third scale are able to produce results that are in good agreement with published experimental test data as compared to full scale simulation. In this study, the selection of mesh size 20 mm x 20 mm x 20 mm found considerably as the best element size for the case study of a rectangular soil barrier subjected to air blast load by using AUTODYN 3D software.

 

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