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Two fluid approach to high speed impact interaction amongst solid structures

Two fluid approach to high speed impact interaction amongst solid structures

Slone, A.K., Croft, T.N., Williams, A.J. and Cross, M. (2002) Two fluid approach to high speed impact interaction amongst solid structures. In: Fifth World Congress on Computational Mechanics (WCCM V), 7-12 Jul 2002, Vienna, Austria.

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Abstract

The issues surrounding collision of projectiles with structures has gained a high profile since the events of 11th September 2001. In such collision problems, the projectile penetrates the stucture so that tracking the interface between one material and another becomes very complex, especially if the projectile is essentially a vessel containing a fluid, e.g. fuel load. The subsequent combustion, heat transfer and melting and re-solidification process in the structure render this a very challenging computational modelling problem. The conventional approaches to the analysis of collision processes involves a Lagrangian-Lagrangian contact driven methodology. This approach suffers from a number of disadvantages in its implementation, most of which are associated with the challenges of the contact analysis component of the calculations. This paper describes a 'two fluid' approach to high speed impact between solid structures, where the objective is to overcome the problems of penetration and re-meshing. The work has been carried out using the finite volume, unstructured mesh multi-physics code PHYSICA+, where the three dimensional fluid flow, free surface, heat transfer, combustion, melting and re-solidification algorithms are approximated using cell-centred finite volume, unstructured mesh techniques on a collocated mesh. The basic procedure is illustrated for two cases of Newtonian and non-Newtonian flow to test various of its component capabilities in the analysis of problems of industrial interest.

Item Type: Conference or Conference Paper (Paper)
Additional Information: [1] This paper was first presented at the Fifth World Congress on Computational Mechanics (WCCM V) held from 7-12 July 2002 in Vienna, Austria.
Uncontrolled Keywords: miulti-phsyics, contact, impact, free surface, finite volume
Subjects: Q Science > QA Mathematics > QA76 Computer software
Q Science > QC Physics
T Technology > TA Engineering (General). Civil engineering (General)
Pre-2014 Departments: School of Computing & Mathematical Sciences
School of Computing & Mathematical Sciences > Centre for Numerical Modelling & Process Analysis
School of Computing & Mathematical Sciences > Centre for Numerical Modelling & Process Analysis > Computational Science & Engineering Group
Related URLs:
Last Modified: 14 Oct 2016 09:01
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
URI: http://gala.gre.ac.uk/id/eprint/617

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