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A Study on Numerical Analysis of Impact Behavior by the Modified GPA Method  

김용환 (충남대학교 기계설계공학과)
김용석 (국방과학연구소)
Publication Information
Journal of the Korean Society for Precision Engineering / v.21, no.1, 2004 , pp. 189-196 More about this Journal
Abstract
A modified generalized particle algorithm, MGPA, was suggested to improve the calculation efficiency of standard SPH Method in numerical analysis of high speed impact behavior. MGPA had a new weight function to reduce computation time. The efficiency of this method was proven through calculation for the sample problems of one dimensional rod impact problem and two dimensional plate impact problem. The MGPA method reduced the calculation error and stress oscillation near the boundaries. The validity of this approach was shown by the comparison with ABAQUS results in two dimensional plate impact problem.
Keywords
Smoothed Particle Hydrodynamics; ; Hydrocode; Plate Impact; Particle Method; Elastic-Plastic Analysis;
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Times Cited By KSCI : 2  (Citation Analysis)
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