Application of smoothed particle hydrodynamics in biomechanics: Advanced procedure for discretization of complex biological shapes into pseudo-particles

Abstract

Smoothed Particle Hydrodynamics is meshless numerical method which is based on continuum mechanics approach, capable of analyzing stresses in both solids and fluids as well as stresses that are result of solid-fluid interaction, with very versatile applications, and yet it' is not sufficiently implemented in biomechanics due to difficulties of node grid generation from complex shape objects. This paper presents multiblock procedure for generation of pseudo-particles which are used in Smoothed Particle Hydrodynamics for representation of discretized parts of analyzed continua. This procedure enables creation of evenly sized pseudo-particles even for the very irregular shaped object such are organs, bones or blood vessels which are analyzed in biomechanics.