Investigation on Mullins effect of rubber materials by spherical indentation method>

Rubber-like soft materials usually experience load-induced softening behavior called the Mullins effect, in which the preloaded material exhibits a significantly more compliant response than the virgin material. However, rare quantitative and simple method of characterizing Mullins effect can be fou...

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Autores principales:	Man-Gong Zhang, Wenshuai Xu, Tao Wu, Xiang-Dong Zhang, Hao Zhang, Zhao Li, Chao Zhang, Heng Jiang, Meng Chen
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Rubber material Spherical indentation Mullins effect Dimensional analysis Finite-element method Parameter optimization Mechanics of engineering. Applied mechanics TA349-359 Technology T
Acceso en línea:	https://doaj.org/article/ac8e4657db174fa08700f5285ccda09c
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spelling	oai:doaj.org-article:ac8e4657db174fa08700f5285ccda09c2021-11-18T04:51:59ZInvestigation on Mullins effect of rubber materials by spherical indentation method>2666-359710.1016/j.finmec.2021.100037https://doaj.org/article/ac8e4657db174fa08700f5285ccda09c2021-10-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2666359721000287https://doaj.org/toc/2666-3597Rubber-like soft materials usually experience load-induced softening behavior called the Mullins effect, in which the preloaded material exhibits a significantly more compliant response than the virgin material. However, rare quantitative and simple method of characterizing Mullins effect can be founded and corresponding accurate simulations in practice were severely restricted. In this paper, a simple measurement method was developed to characterize this mechanical response. A comprehensive theoretical, computational, and experimental study of the spherical indentation of rubber materials was undertaken to interpret parameters of the Mullins effect. Neo-Hookean model is used to describe nonlinear hyper-elastic deformation behavior and a pseudo-elastic model originally proposed by Ogden and Roxburgh is applied to interpret load-induced softening effects. Relationships between indentation loads, indentation depths, radius of the spherical indenter, and constitutive parameters of the material are obtained by dimensional analysis. Based on finite-element methods and parameter optimization procedure, a general method for determining the parameters of neo-Hookean and pseudo-elastic models was established. The approach was numerically and experimentally validated. This method provides a simple and accurate way of interpreting load-induced softening of rubber materials from spherical indentation tests, which will enrich the application of pseudo-elastic model using in vary cyclic loading conditions, capturing more new features in rubber-like soft materials and structures.Man-Gong ZhangWenshuai XuTao WuXiang-Dong ZhangHao ZhangZhao LiChao ZhangHeng JiangMeng ChenElsevierarticleRubber materialSpherical indentationMullins effectDimensional analysisFinite-element methodParameter optimizationMechanics of engineering. Applied mechanicsTA349-359TechnologyTENForces in Mechanics, Vol 4, Iss , Pp 100037- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Rubber material Spherical indentation Mullins effect Dimensional analysis Finite-element method Parameter optimization Mechanics of engineering. Applied mechanics TA349-359 Technology T
spellingShingle	Rubber material Spherical indentation Mullins effect Dimensional analysis Finite-element method Parameter optimization Mechanics of engineering. Applied mechanics TA349-359 Technology T Man-Gong Zhang Wenshuai Xu Tao Wu Xiang-Dong Zhang Hao Zhang Zhao Li Chao Zhang Heng Jiang Meng Chen Investigation on Mullins effect of rubber materials by spherical indentation method>
description	Rubber-like soft materials usually experience load-induced softening behavior called the Mullins effect, in which the preloaded material exhibits a significantly more compliant response than the virgin material. However, rare quantitative and simple method of characterizing Mullins effect can be founded and corresponding accurate simulations in practice were severely restricted. In this paper, a simple measurement method was developed to characterize this mechanical response. A comprehensive theoretical, computational, and experimental study of the spherical indentation of rubber materials was undertaken to interpret parameters of the Mullins effect. Neo-Hookean model is used to describe nonlinear hyper-elastic deformation behavior and a pseudo-elastic model originally proposed by Ogden and Roxburgh is applied to interpret load-induced softening effects. Relationships between indentation loads, indentation depths, radius of the spherical indenter, and constitutive parameters of the material are obtained by dimensional analysis. Based on finite-element methods and parameter optimization procedure, a general method for determining the parameters of neo-Hookean and pseudo-elastic models was established. The approach was numerically and experimentally validated. This method provides a simple and accurate way of interpreting load-induced softening of rubber materials from spherical indentation tests, which will enrich the application of pseudo-elastic model using in vary cyclic loading conditions, capturing more new features in rubber-like soft materials and structures.
format	article
author	Man-Gong Zhang Wenshuai Xu Tao Wu Xiang-Dong Zhang Hao Zhang Zhao Li Chao Zhang Heng Jiang Meng Chen
author_facet	Man-Gong Zhang Wenshuai Xu Tao Wu Xiang-Dong Zhang Hao Zhang Zhao Li Chao Zhang Heng Jiang Meng Chen
author_sort	Man-Gong Zhang
title	Investigation on Mullins effect of rubber materials by spherical indentation method>
title_short	Investigation on Mullins effect of rubber materials by spherical indentation method>
title_full	Investigation on Mullins effect of rubber materials by spherical indentation method>
title_fullStr	Investigation on Mullins effect of rubber materials by spherical indentation method>
title_full_unstemmed	Investigation on Mullins effect of rubber materials by spherical indentation method>
title_sort	investigation on mullins effect of rubber materials by spherical indentation method>
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/ac8e4657db174fa08700f5285ccda09c
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Investigation on Mullins effect of rubber materials by spherical indentation method>

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