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Modeling non-linear viscoelastic behavior under large deformations
del Castillo Pérez, Esteban; Basañez Villaluenga, Luis; Gil Dolcet, Ernest
Universitat Politècnica de Catalunya. Departament d'Enginyeria de Sistemes, Automàtica i Informàtica Industrial; Universitat Politècnica de Catalunya. SIR - Robòtica Industrial i Servei
This paper addresses the accurate modeling of the behavior of a thin layer of natural rubber subjected to large deformations. Such a system presents a non-linear viscoelastic behavior similar to many biological soft tissues. The proposed model uses an spring-mass system, and considers a non-linear evolution of the reaction forces of the membrane,as well as viscous and Coulomb friction. In the model, the elasticity coefficient of the springs has an exponential dependence of its elongation. Three experimental tests validate the proposed model, which reaches a real-time performance using an implicit integrator
Àrees temàtiques de la UPC::Informàtica
Image processing
Pattern recognition systems
Deformable models
Exponential spring-mass model
Circular membrane
Soft tissue
Imatges -- Processament
Reconeixement de formes (Informàtica)
Article - Draft

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