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apps Other research productkeyboard_double_arrow_right Other ORP type 2017 France English Funded by:ANR | PRIMES, ANR | Avenir L.S.E.ANR| PRIMES ,ANR| Avenir L.S.E.Golec, Karolina; Palierne, Jean-François; Zara, Florence; Nicolle, S; Damiand, Guillaume;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. Work In Progress Session, VRIPHYS 2017: 13th Workshop on Virtual Reality Interaction and Physical Simulation, 23-24 April 2017, Lyon, France.
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apps Other research productkeyboard_double_arrow_right Other ORP type 2017 France English Funded by:ANR | PRIMES, ANR | Avenir L.S.E.ANR| PRIMES ,ANR| Avenir L.S.E.Golec, Karolina; Palierne, Jean-François; Zara, Florence; Nicolle, S; Damiand, Guillaume;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. Work In Progress Session, VRIPHYS 2017: 13th Workshop on Virtual Reality Interaction and Physical Simulation, 23-24 April 2017, Lyon, France.
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