Using the Mooney Space to Characterize the Non-Affine Behavior of Elastomers

The formulation of the entropic statistical theory and the related neo-Hookean model has been a major advance in the modeling of rubber-like materials, but the failure to explain some experimental observations such as the slope in Mooney plots resulted in hundreds of micromechanical and phenomenolog...

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Main Authors: Moreno-Corrales, L, Sanz-Gómez, MÁ, Benítez, JM, Saucedo-Mora, L, Montáns, FJ
Format: Journal article
Language:English
Published: MDPI 2024
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author Moreno-Corrales, L
Sanz-Gómez, MÁ
Benítez, JM
Saucedo-Mora, L
Montáns, FJ
author_facet Moreno-Corrales, L
Sanz-Gómez, MÁ
Benítez, JM
Saucedo-Mora, L
Montáns, FJ
author_sort Moreno-Corrales, L
collection OXFORD
description The formulation of the entropic statistical theory and the related neo-Hookean model has been a major advance in the modeling of rubber-like materials, but the failure to explain some experimental observations such as the slope in Mooney plots resulted in hundreds of micromechanical and phenomenological models. The origin of the difficulties, the reason for the apparent need for the second invariant, and the reason for the relative success of models based on the Valanis–Landel decomposition have been recently explained. From that insight, a new micro–macro chain stretch connection using the stretch tensor (instead of the right Cauchy–Green deformation tensor) has been proposed and supported both theoretically and from experimental data. A simple three-parameter model using this connection has been suggested. The purpose of this work is to provide further insight into the model, to provide an analytical expression for the Gaussian contribution, and to provide a simple procedure to obtain the parameters from a tensile test using the Mooney space or the Mooney–Rivlin constants. From different papers, a wide variety of experimental tests on different materials and loading conditions have been selected to demonstrate that the simple model calibrated only from a tensile test provides accurate predictions for a wide variety of elastomers under different deformation levels and multiaxial patterns.
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spelling oxford-uuid:b508a5f3-bd38-4b8c-89e7-8d6578e7e37b2024-05-30T10:35:04ZUsing the Mooney Space to Characterize the Non-Affine Behavior of ElastomersJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:b508a5f3-bd38-4b8c-89e7-8d6578e7e37bEnglishJisc Publications RouterMDPI2024Moreno-Corrales, LSanz-Gómez, MÁBenítez, JMSaucedo-Mora, LMontáns, FJThe formulation of the entropic statistical theory and the related neo-Hookean model has been a major advance in the modeling of rubber-like materials, but the failure to explain some experimental observations such as the slope in Mooney plots resulted in hundreds of micromechanical and phenomenological models. The origin of the difficulties, the reason for the apparent need for the second invariant, and the reason for the relative success of models based on the Valanis–Landel decomposition have been recently explained. From that insight, a new micro–macro chain stretch connection using the stretch tensor (instead of the right Cauchy–Green deformation tensor) has been proposed and supported both theoretically and from experimental data. A simple three-parameter model using this connection has been suggested. The purpose of this work is to provide further insight into the model, to provide an analytical expression for the Gaussian contribution, and to provide a simple procedure to obtain the parameters from a tensile test using the Mooney space or the Mooney–Rivlin constants. From different papers, a wide variety of experimental tests on different materials and loading conditions have been selected to demonstrate that the simple model calibrated only from a tensile test provides accurate predictions for a wide variety of elastomers under different deformation levels and multiaxial patterns.
spellingShingle Moreno-Corrales, L
Sanz-Gómez, MÁ
Benítez, JM
Saucedo-Mora, L
Montáns, FJ
Using the Mooney Space to Characterize the Non-Affine Behavior of Elastomers
title Using the Mooney Space to Characterize the Non-Affine Behavior of Elastomers
title_full Using the Mooney Space to Characterize the Non-Affine Behavior of Elastomers
title_fullStr Using the Mooney Space to Characterize the Non-Affine Behavior of Elastomers
title_full_unstemmed Using the Mooney Space to Characterize the Non-Affine Behavior of Elastomers
title_short Using the Mooney Space to Characterize the Non-Affine Behavior of Elastomers
title_sort using the mooney space to characterize the non affine behavior of elastomers
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