Proposal of New Particle Generation Technique in SPH Analysis of Hypervelocity Impacts.

A single energy-based parameter to assess protection capability of debris shields

“…New particle generation and particle merger techniques [10][11][12] 2.5.1. New particle generation technique In the numerical simulation using a conventional SPH method, the loss of interactions among particles due to the increase of distances among the particles causes ''numerical fractures'', although the aforementioned fracture criterion is not satisfied.…”

“…In the numerical simulation of HVIs by means of a conventional SPH method, the loss of interactions among particles causes ''numerical fractures'' [9] when the distance between the particles increases. To prevent ''numerical fractures'', an improved SPH method with new particle generation and particle merger techniques was proposed by the authors [10][11][12].…”