A simple method in preventing numerical fractures of SPH computations

Yan Zhao, Fei Xu, Li Yulong, Yoshitaka Wada

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

A non-triangulation inserting particle method is presented to prevent numerical fractures of SPH computations. The particles in those regions in which numerical fractures may occur are chosen at the beginning of SPH computations. And, the chosen particles are arrayed by the two different rules respectively according to the particle position relations. When the distance between each two chosen connected particles exceeds a certain value and neither of the corresponding two particles has fractured in SPH computations, a new particle is generated between those two ones and the position relation of particles is updated. The physical quantities that the new particle carries are obtained according to some given rules. The method and the same type of method in the reference are compared. The application of the method is analyzed. Conservation of mass and Conservation of momentum of the whole system are kept in this method. Several examples are given to validate the efficiency of the method to prevent numerical fractures.

Original languageEnglish
Title of host publicationAdvances in Fracture and Materials Behavior - Selected, peer reviewed papers of the Seventh International Conference on Fracture and Strength of Solids (FEOFS2007)
PublisherTrans Tech Publications
Pages845-850
Number of pages6
ISBN (Print)0878493999, 9780878493999
DOIs
StatePublished - 2008
Event7th International Conference on Fracture and Strength of Solids, FEOFS 2007 - Urumqi, China
Duration: 27 Aug 200729 Aug 2007

Publication series

NameAdvanced Materials Research
Volume33-37 PART 2
ISSN (Print)1022-6680

Conference

Conference7th International Conference on Fracture and Strength of Solids, FEOFS 2007
Country/TerritoryChina
CityUrumqi
Period27/08/0729/08/07

Keywords

  • Inserting particles
  • Numerical fractures
  • Real fractures
  • SPH

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