University of Hertfordshire

From the same journal

  • T. De Vuyst
  • K. Kong
  • N. Djordjevic
  • R. Vignjevic
  • J. C. Campbell
  • K. Hughes
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Original languageEnglish
Article number032074
JournalJournal of Physics: Conference Series
Journal publication date1 Sep 2016
Volume734
Issue3
DOIs
Publication statusPublished - 1 Sep 2016
Externally publishedYes
Event10th International Conference and Workshop on Numerical Simulation of 3D Sheet Metal Forming Processes, NUMISHEET 2016 - Bristol, United Kingdom
Duration: 4 Sep 20169 Sep 2016

Abstract

Modelling and analysis of underwater explosive forming process by using FEM and SPH formulation is presented in this work. The explosive forming of a steel cone is studied. The model setup includes a low carbon steel plate, plate holder, forming die as well as water and C4 explosive. The effect of multiple explosives on rate of targets deformation has been studied. Four different multi-explosives models have been developed and compared to the single explosive model. The formability of the steel plate based on forming limit failure criteria has been investigated. Aspects such as shape of plates deformation and thickness of the plate during the forming process have been examined. The model results indicate that a multi-explosives model does not always guarantee a faster rate of target deformation without central explosive. On the other hand the model results indicate that the multi-explosives setup is capable of preventing crack failure of the steel plate during the forming process which would occur if a single explosive model was used.

ID: 17390189