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P. Baranowski, J. Malachowski, T. Niezgoda, "On the Numerical Description of the Contact Problem between a Rigid Flying Object and a Net Structure", in , (Editors), "Proceedings of the Fourteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 57, 2013. doi:10.4203/ccp.102.57

Keywords: overwhelming net, UHWPE material, contact procedure, LS-Dyna, dynamics.

Summary

The authors of this paper undertook the numerical modelling of the interaction between a high strength aramid net and a selected rigid object with relatively small geometric dimensions and low weight. The main aim of investigation was to present the possibility of contact modelling in strongly dynamic conditions. For this purpose the net similar to that widely known as an overwhelming net-gun was applied, which interacted with a representative flying object. For simulating the breach of the net fibre a failure criterion was implemented based on failure strain taken from an experiment. Numerical simulations were performed using explicit LS-Dyna code, which uses a central difference scheme for the numerical solution of differential equations. Additionally, two cases were analysed: with the spread of a net applied as an initial condition and with the net launched from the gun head. The results were compared with each other with the particular attention on the estimation of the influence of the net on a rigid body. Also the principal characteristics were investigated, such as velocity changes, energy balance and fibre failure.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 102 PROCEEDINGS OF THE FOURTEENTH INTERNATIONAL CONFERENCE ON CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING COMPUTING Edited by: Paper 57 On the Numerical Description of the Contact Problem between a Rigid Flying Object and a Net Structure P. Baranowski, J. Malachowski and T. Niezgoda Faculty of Mechanical Engineering, Department of Mechanics and Applied Computer Science Military University of Technology, Warsaw, Poland doi:10.4203/ccp.102.57 purchase the full-text of this paper Full Bibliographic Reference for this paper P. Baranowski, J. Malachowski, T. Niezgoda, "On the Numerical Description of the Contact Problem between a Rigid Flying Object and a Net Structure", in , (Editors), "Proceedings of the Fourteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 57, 2013. doi:10.4203/ccp.102.57 Keywords: overwhelming net, UHWPE material, contact procedure, LS-Dyna, dynamics. Summary The authors of this paper undertook the numerical modelling of the interaction between a high strength aramid net and a selected rigid object with relatively small geometric dimensions and low weight. The main aim of investigation was to present the possibility of contact modelling in strongly dynamic conditions. For this purpose the net similar to that widely known as an overwhelming net-gun was applied, which interacted with a representative flying object. For simulating the breach of the net fibre a failure criterion was implemented based on failure strain taken from an experiment. Numerical simulations were performed using explicit LS-Dyna code, which uses a central difference scheme for the numerical solution of differential equations. Additionally, two cases were analysed: with the spread of a net applied as an initial condition and with the net launched from the gun head. The results were compared with each other with the particular attention on the estimation of the influence of the net on a rigid body. Also the principal characteristics were investigated, such as velocity changes, energy balance and fibre failure. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £65 +P&P)
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