On strain-induced degradation of the polymeric skeleton in poro-hyperelastic inflating vessels by a non-equilibrium thermodynamic framework

2022 ◽  
Vol 171 ◽  
pp. 103618
Author(s):  
Mehdi Kazemian ◽  
Ali Hassani ◽  
Ali Moazemi Goudarzi
Keyword(s):  
Equilibrium Thermodynamic ◽  
Thermodynamic Framework ◽  
Non Equilibrium

A study on deformation-induced degradation of the compressible polymeric pressurized vessel through a non-equilibrium thermodynamic framework

2021 ◽  
pp. 108128652110429
Author(s):  
M. Kazemian ◽  
A. Moazemi Goudarzi ◽  
A. Hassani
Keyword(s):  
Dissipation Rate ◽  
Parametric Design ◽  
Material Model ◽  
Energy Dissipation Rate ◽  
Maximum Energy ◽  
Equilibrium Thermodynamic ◽  
Hill Model ◽  
Thermodynamic Framework ◽  
Proposed Model ◽  
Non Equilibrium

The present paper investigates the degradation of compressible polymers based on the proposed model on strain-induced degradation of incompressible polymers. In a non-equilibrium thermodynamic framework, constitutive equations and evolution laws are derived using the principle of maximum energy dissipation rate and specifying how energy can be stored and dissipated. As a computational model, the governing equations are applied to the pressurized polymeric vessel subjected to the Ogden–Hill compressible hyperelastic material model. To analyze the axisymmetric plane-strain degradable vessel, programming in ANSYS Parametric Design Language (APDL) and the Standard Galerkin Finite Element Method (SGFEM) are applied. The results show that the degradable compressible Ogden–Hill model can also predict the degradation of incompressible polymers subjected to the neo-Hookean model. Results also reveal that the highest dissipation rate and material softening occur at the inner radius of the inflated degradable vessel. Creep-like and stress-relaxation-like responses of the polymeric vessel with time-position-dependent material properties are examined. ANSYS coding indicates good accuracy and efficiency in studying the compressible vessel subjected to inhomogeneous degradation.

Non-equilibrium thermodynamic analysis of adsorption carbon capture: Contributors, mechanisms and verification of entropy generation

Energy ◽  
2020 ◽  
Vol 208 ◽  
pp. 118348
Author(s):  
Zhihao Guo ◽  
Shuai Deng ◽  
Yu Zhu ◽  
Li Zhao ◽  
Xiangzhou Yuan ◽  
...  
Keyword(s):  
Thermodynamic Analysis ◽  
Entropy Generation ◽  
Carbon Capture ◽  
Equilibrium Thermodynamic ◽  
Non Equilibrium

scholarly journals First-principles insight into CO hindered agglomeration of Rh and Pt single atoms on m-ZrO2

2020 ◽  
Vol 10 (17) ◽  
pp. 5847-5855
Author(s):  
Minttu M. Kauppinen ◽  
Marko M. Melander ◽  
Karoliina Honkala
Keyword(s):  
Thermodynamic Stability ◽  
First Principles ◽  
Single Atom ◽  
Reaction Conditions ◽  
Multi Scale ◽  
Single Atoms ◽  
Thermodynamic Framework ◽  
Insight Into ◽  
Non Equilibrium

Kinetic and thermodynamic stability of single-atom and nanocluster catalysts is addressed under reaction conditions within a DFT-parametrised multi-scale thermodynamic framework combining atomistic, non-equilibrium, and nanothermodynamics.

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