Finite difference analysis of high-velocity plastic forming of shells

Alexander V. Mamutov

doi:10.1117/12.417678

1 February 2001 Finite difference analysis of high-velocity plastic forming of shells

Alexander V. Mamutov

Proceedings Volume 4348, Fourth International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering; (2001) https://doi.org/10.1117/12.417678
Event: Fourth International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering, 2000, St. Petersburg, Russian Federation

Abstract

The computer model of high-speed elasto-plastic deforming of thin shell, fixed on complex contour was created. The model allow to estimate wave localization of plastic strains near with the contour of fixing. The two-dimensional problem of mathematical physics in Lagrangian - Euler coordinates describing major plastic strains of shell fixed on composite contour was designed. The strain hardening of material, elastic unloading, temporal law of pressure is taken into account. The implicit finite-difference algorithm of numerical solution using on each temporal step the special joint solution method of two systems of the nonlinear algebraic equations was designed and the program was implemented. The calculations have been shown possibility of localization of plastic strains and fractures of workpiece during electrohydraulic sheet metal forming.

Citation Download Citation

Alexander V. Mamutov "Finite difference analysis of high-velocity plastic forming of shells", Proc. SPIE 4348, Fourth International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering, (1 February 2001); https://doi.org/10.1117/12.417678

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