Journal ArticleDOI
A thermodynamically consistent model for viscoelastic polymers undergoing microstructural changes
TLDR
In this paper, a thermodynamic framework for describing the mechanical response of viscoelastic polymers undergoing microstructural changes within the framework of a body possessing multiple natural configurations is presented.About:
This article is published in International Journal of Engineering Science.The article was published on 2019-09-01. It has received 16 citations till now. The article focuses on the topics: Viscoelasticity.read more
Citations
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Journal ArticleDOI
On the effective behavior of viscoelastic composites in three dimensions
O.L. Cruz-González,Reinaldo Rodríguez-Ramos,Reinaldo Rodríguez-Ramos,José A. Otero,Ariel Ramírez-Torres,Raimondo Penta,Frédéric Lebon +6 more
TL;DR: In this paper, the effective properties of non-aging linear viscoelastic composite materials are investigated by solving the microscale periodic local problems obtained via the Asymptotic Homogenization Method (AHM) by means of finite element three-dimensional simulations.
Journal ArticleDOI
Efficient modeling of filled rubber assuming stress-induced microscopic restructurization
TL;DR: In this article, a model based on physical ideas and plausible assumptions about the material's microstructure, while being designed for high efficiency and robustness in finite element applications, is presented and tested against experimental data of a simplified bushing under torsional, radial, cardanic and axial loading.
Journal ArticleDOI
Influence of water content on the mechanical behavior of gelatin based hydrogels: Synthesis, characterization, and modeling
TL;DR: The mechanical characterization and the modeling results indicate that the gelatin-based hydrogels show the significant viscoelastic behavior at lower water content, and it reduced at higher water content.
Journal ArticleDOI
Uncovering the glass-transition temperature and temperature-dependent storage modulus of graphene-polymer nanocomposites through irreversible thermodynamic processes
TL;DR: In this paper, the authors take the view that both issues are closely tied to the principle of irreversible thermodynamics and that, by considering the phase transition from the glassy to the rubbery state in the polymer, and the temperature-affected degradation of the interphase, two independent state variables can be chosen and implemented into a two-scale homogenization scheme.
Journal ArticleDOI
In vivo based biomechanics of right and left coronary arteries
TL;DR: A realistic/comprehensive biomechanical model of right/left coronary arteries is developed using the in vivo geometric and haemodynamic properties obtained from optical coherence tomography, angiography, and electrocardiography for determination of regions with highest shear/von Mises stresses.
References
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Book ChapterDOI
Fundamental Problems in Viscoplasticity
TL;DR: The fundamental assumption of all theories of plasticity, that of time independence of the equations of state, makes simultaneous description of the plastic and rheologic properties of a material impossible as mentioned in this paper.
Journal ArticleDOI
A New Approach to the Theory of Relaxing Polymeric Media
M. S. Green,A. V. Tobolsky +1 more
TL;DR: In this article, the second law of thermodynamics is used to define dissipation of energy at constant temperature and explicit expressions for dissipation energy for any strain history are obtained, inasmuch as relaxation during straining causes an essential reorganization of structure which is in fact the cause of dissipation.
Journal ArticleDOI
Network Stretching, Slip Processes, and Fragmentation of Crystallites during Uniaxial Drawing of Polyethylene and Related Copolymers. A Comparative Study
TL;DR: In this paper, a comprehensive study on a series of polyethylene (PE) samples encompassing a large range of crystallinities was carried out using a video-controlled tensile testing machine.