A thermo-mechanical large deformation constitutive model for polymers based on material network description: Application to a semi-crystalline polyamide 66

• Published in: International journal of plasticity Vol. 67; pp. 102 - 126
• Main Authors: Maurel-Pantel, A., Baquet, E., Bikard, J., Bouvard, J.L., Billon, N.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.04.2015; Elsevier
• Subjects: A. Thermomechanical processes; B. Constitutive behaviour; B. Elastic-viscoplastic material; B. Polymeric material; Constitutive relationships; Construction materials; Disentanglement / slip-link; Engineering Sciences; Materials; Materials and structures in mechanics; Mathematical models; Mechanics; Mechanics of materials; Networks; Polyamide resins; Polymers; Shear; Solid mechanics; Strain rate; Disentanglement / slip-link; B. Polymeric material; B. Elastic-viscoplastic material; A. Thermomechanical processes; B. Constitutive behaviour; slip-link; Polymeric material; Disentanglement; Elastic-viscoplastic material; Constitutive behaviour; Thermomechanical processes

•We develop a behavior model for a semi crystalline polymer with full thermo-mechanical couplings.•The model is based on the molecular chain network description with parameters physical meaning.•We assume that inelastic phenomena result in an increase of entropy related to “de-entanglement”.•The mod...