Details of Grant 

EPSRC Reference:	GR/K77631/01
Title:	ASSESMENT OF PARTICLE BASED LAGRANGIAN METHODS FOR HIGH STRAIN PROBLEMS IN COMPUTATIONAL MECHANICS
Principal Investigator:	Bonet, Professor J
Other Investigators:
Researcher Co-Investigators:
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Department:	Civil Engineering
Organisation:	Swansea University
Scheme:	Standard Research (Pre-FEC)
Starts:	01 February 1996	Ends:	31 January 1997	Value (£):	45,771
EPSRC Research Topic Classifications:	Eng. Dynamics & Tribology
EPSRC Industrial Sector Classifications:
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Panel History:
Summary on Grant Application Form
Particle based Lagrangian techniques, such as the Smooth Particle Hydrodynamics (SPH) method initially developed for stellar problems, have recently been proposed as viable alternatives to traditional mesh based methods such as the finite element (FE) method for the numerical simulation of high strain dynamic problems in computational mechanics. Their main advantage is to bypass the need for computational grids thus avoiding the severe mesh distortion problems encountered in traditional high strain analysis. The project aims to assess the accuracy of several SPH and similar techniques against traditional FE methods for simple elliptic equations approximated on stationary random distributions of grid points. These accuracy analyses would be followed by the development of efficient and flexible software based on these techniques. Critical aspects of the implementation of these methods, such as searching and nearest neighbours algorithms, would be studied. Finally, the project would undertake a comprehensive viability study of these techniques for simulating a wide range of problems such as high speed impact; high speed machining; dynamic crack propagation; explosions and many others. The success of these techniques would greatly improve the ability of researchers in academia and industry to simulate these highly complex phenomena and make successful predictions.
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Organisation Website:	http://www.swan.ac.uk