Implicit implementation and consistent tangent modulus of a viscoplastic model for polymers
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TLDR
In this paper, the phenomenological viscoplastic DSGZ model is numerically implemented in a three-dimensional framework, following an implicit formulation, leading to the definition of the consistent tangent modulus which permits the implementation in incremental micromechanical scale transition analysis.About:
This article is published in International Journal of Mechanical Sciences.The article was published on 2015-11-01 and is currently open access. It has received 21 citations till now. The article focuses on the topics: Tangent modulus & Viscoplasticity.read more
Figures
Fig. 1. Specimens dimensions. 
Table 2 Parameter values identified by the Matlab genetic algorithm. 
Fig. 3. Model validation through the comparison between additional experiments, analytical calculations and numerical simulations. 
Fig. 2. Comparison between experiments utilized for material parameters identification, analytical calculations and numerical simulations. 
Table 1 Return mapping algorithm (radial return mapping) for the DSGZ model. 
Fig. 8. Evolution of the viscoplastic dissipation.
Citations
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Journal ArticleDOI
Three-dimensional FE2 method for the simulation of non-linear, rate-dependent response of composite structures
El-Hadi Tikarrouchine,El-Hadi Tikarrouchine,Georges Chatzigeorgiou,Francis Praud,Boris Piotrowski,Yves Chemisky,Fodil Meraghni +6 more
TL;DR: In this paper, a two-scale finite element method (FE2) is presented to predict the non-linear macroscopic response of 3D composite structures with periodic microstructure that exhibit a time-dependent response.
Journal ArticleDOI
Phenomenological multi-mechanisms constitutive modelling for thermoplastic polymers, implicit implementation and experimental validation
TL;DR: In this article, a phenomenological model for thermoplastic polymers involving several mechanisms is proposed, and the constitutive equations lie within the framework of thermodynamics and account for both viscoelasticty, viscoplasticity and ductile damage.
Journal ArticleDOI
Hierarchical micromechanical modeling of the viscoelastic behavior coupled to damage in SMC and SMC-hybrid composites
TL;DR: In this article, a multiscale analysis of the viscoelastic behavior of glass reinforced sheet molding compound (SMC) composites and SMC-hybrid composites mixing two types of bundle reinforcement: glass and carbon fibers is presented.
Journal ArticleDOI
Multi-scale experimental investigation of the viscous nature of damage in Advanced Sheet Molding Compound (A-SMC) submitted to high strain rates
Mohammadali Shirinbayan,Joseph Fitoussi,Michel Bocquet,Fodil Meraghni,Benjamin Surowiec,Abbas Tcharkhtchi +5 more
TL;DR: In this paper, an experimental multi-scale analysis of quasi-static and high strain rate damage behavior of a new formulation of SMC composite (Advanced SMC) is presented.
Journal ArticleDOI
A fully coupled thermo-viscoelastic-viscoplastic-damage framework to study the cyclic variability of the Taylor-Quinney coefficient for semi-crystalline polymers
TL;DR: In this article, the authors proposed a rigorous and consistent thermo-viscoelastic-viscoplastic ductile damage model to address the variability of the Taylor-Quinney coefficient (the storage to anelastic energy rate ratio) during the deformation of thermoplastic polymers.
References
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