Numerical simulation of high velocity perforation process with different projectile s corner radii, using a modified compressible algorithm of Smoothed Particle Hydrodynamics (MCSPH)

Using smoothed particle hydrodynamics (SPH) method to simulate large deformations in high rate processes of solid materials could be regarded as a recent research. Despitetheir abilities. conventional algorithms of SPH method have some numerical fractures and tensile instabilities in aforementioned processes. Hence, a modified compressible algorithm of SPH method (MCSPH) is applied here which is suitable for the case of high rate processes such as high velocity perforations. This algorithm was previously applied to simulate crack propagation phenomena in high velocity perforation with a blunt shape projectile in various cases. Although this algorithm has no artificial viscosity in its formulation. results were in good compatibility with original study. In current study. author tried to simulate high velocity perforation process with rounded corner shape projectiles to analyze MC SPH in cases with more plastic deformations and its capabilities to track down the crack initiation and growth with a different propagation patterns. At last, to Validate the results, they got compared to a trustworthy Finite Element research.

کلیدواژه ها:

Numerical simulation ، SPH ، modified compressible algorithm ، High velocity perforation ، Rounded comer projectile