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Other research product . Other ORP type . 2017

Hybrid 3D Mass-Spring System to simulate isotropic materials

Golec, Karolina; Palierne, Jean-François; Zara, Florence; Nicolle, S; Damiand, Guillaume;
Open Access
English
Published: 01 Apr 2017
Country: France
Abstract
Work In Progress Session, VRIPHYS 2017: 13th Workshop on Virtual Reality Interaction and Physical Simulation, 23-24 April 2017, Lyon, France.; Cubic symmetric Mass-Spring Systems (MSS) for simulating isotropic elastic materials are known to be intrinsically limited by the Cauchy constraints (rari-constant theory) involving Poisson ratio of exactly ν = 1/4. To mitigate the impact of this restriction, we propose a new solution based on correction forces, which authorizes to use MSS for materials with ν ∈]0; 0.5[. The validation of our model is evaluated by comparing its response to various deformations with Finite Element Model (FEM). The results show that the proposed model is relevant to simulate any compressible isotropic elastic material, and in particular nearly incompressible (Poisson ratio ≃ 0.5) biological soft tissues for which it is dedicated.
Subjects

METHODE DES ELEMENTS FINIS, IMAGERIE 3D, MILIEU ISOTROPE, [INFO.INFO-GR]Computer Science [cs]/Graphics [cs.GR]

Funded by
ANR| Avenir L.S.E.
Project
Avenir L.S.E.
PROJET AVENIR LYON SAINT-ETIENNE
  • Funder: French National Research Agency (ANR) (ANR)
  • Project Code: ANR-11-IDEX-0007
,
ANR| PRIMES
Project
PRIMES
Physique, Radiobiologie, Imagerie Médicale et Simulation
  • Funder: French National Research Agency (ANR) (ANR)
  • Project Code: ANR-11-LABX-0063
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