Finite element computation with anisotropic hyperelastic model considering distributed fibers for artificial and natural leather used in sports

Materials such as natural leather and artificial leather are some of the most important materials in sports. Natural leathers have been widely used for sports equipment. Currently, artificial leathers are also often used in sports as an alternative to natural leathers. However, the structure of both...

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Autores principales:	Hayato NAKAHARA, Akihiro MATSUDA
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2020
Materias:	finite element analysis anisotropy hyperelasticity distributed fibers leather material sports material Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/0348f12b32a84af0b82801b7e35ab83e
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spelling	oai:doaj.org-article:0348f12b32a84af0b82801b7e35ab83e2021-11-29T05:59:27ZFinite element computation with anisotropic hyperelastic model considering distributed fibers for artificial and natural leather used in sports2187-974510.1299/mej.20-00072https://doaj.org/article/0348f12b32a84af0b82801b7e35ab83e2020-07-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/7/4/7_20-00072/_pdf/-char/enhttps://doaj.org/toc/2187-9745Materials such as natural leather and artificial leather are some of the most important materials in sports. Natural leathers have been widely used for sports equipment. Currently, artificial leathers are also often used in sports as an alternative to natural leathers. However, the structure of both artificial and natural leather materials is complex because both biochemical and artificial fibers are contained in the body. Due to the effect of internal fibers, anisotropic mechanical characteristics of leathers are observed. Also, the fiber orientations are dispersed, and fiber orientation dispersion and degree of anisotropy have correlations. Regarding the manufacturing process of sports equipment made with artificial and natural leather materials, it is important to consider the anisotropic mechanical characteristics and fiber orientation dispersion to improve design performance. In this study, uniaxial tensile loading tests were conducted on three types of leather materials to investigate their anisotropic characteristics, and an anisotropic hyperelastic model for leather materials was proposed. Also, numerical simulations using the finite element method (FEM) were performed. Tensile loading tests were performed on an artificial leather and two types of natural leather. The results revealed that all materials exhibited anisotropic behaviors and different anisotropic characteristics were observed in each material. The existence of one fiber family was revealed in the artificial leather and that of two fiber families was revealed in the natural leathers. Regarding the FE simulations, the mechanical properties of the three types of leathers were reproduced by the proposed model. The mechanical characteristics of leather materials which had one fiber family and two fiber families could be reproduced. The applicability of the proposed hyperelastic model to evaluate the mechanical properties of leather materials was demonstrated.Hayato NAKAHARAAkihiro MATSUDAThe Japan Society of Mechanical Engineersarticlefinite element analysisanisotropyhyperelasticitydistributed fibersleather materialsports materialMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 7, Iss 4, Pp 20-00072-20-00072 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	finite element analysis anisotropy hyperelasticity distributed fibers leather material sports material Mechanical engineering and machinery TJ1-1570
spellingShingle	finite element analysis anisotropy hyperelasticity distributed fibers leather material sports material Mechanical engineering and machinery TJ1-1570 Hayato NAKAHARA Akihiro MATSUDA Finite element computation with anisotropic hyperelastic model considering distributed fibers for artificial and natural leather used in sports
description	Materials such as natural leather and artificial leather are some of the most important materials in sports. Natural leathers have been widely used for sports equipment. Currently, artificial leathers are also often used in sports as an alternative to natural leathers. However, the structure of both artificial and natural leather materials is complex because both biochemical and artificial fibers are contained in the body. Due to the effect of internal fibers, anisotropic mechanical characteristics of leathers are observed. Also, the fiber orientations are dispersed, and fiber orientation dispersion and degree of anisotropy have correlations. Regarding the manufacturing process of sports equipment made with artificial and natural leather materials, it is important to consider the anisotropic mechanical characteristics and fiber orientation dispersion to improve design performance. In this study, uniaxial tensile loading tests were conducted on three types of leather materials to investigate their anisotropic characteristics, and an anisotropic hyperelastic model for leather materials was proposed. Also, numerical simulations using the finite element method (FEM) were performed. Tensile loading tests were performed on an artificial leather and two types of natural leather. The results revealed that all materials exhibited anisotropic behaviors and different anisotropic characteristics were observed in each material. The existence of one fiber family was revealed in the artificial leather and that of two fiber families was revealed in the natural leathers. Regarding the FE simulations, the mechanical properties of the three types of leathers were reproduced by the proposed model. The mechanical characteristics of leather materials which had one fiber family and two fiber families could be reproduced. The applicability of the proposed hyperelastic model to evaluate the mechanical properties of leather materials was demonstrated.
format	article
author	Hayato NAKAHARA Akihiro MATSUDA
author_facet	Hayato NAKAHARA Akihiro MATSUDA
author_sort	Hayato NAKAHARA
title	Finite element computation with anisotropic hyperelastic model considering distributed fibers for artificial and natural leather used in sports
title_short	Finite element computation with anisotropic hyperelastic model considering distributed fibers for artificial and natural leather used in sports
title_full	Finite element computation with anisotropic hyperelastic model considering distributed fibers for artificial and natural leather used in sports
title_fullStr	Finite element computation with anisotropic hyperelastic model considering distributed fibers for artificial and natural leather used in sports
title_full_unstemmed	Finite element computation with anisotropic hyperelastic model considering distributed fibers for artificial and natural leather used in sports
title_sort	finite element computation with anisotropic hyperelastic model considering distributed fibers for artificial and natural leather used in sports
publisher	The Japan Society of Mechanical Engineers
publishDate	2020
url	https://doaj.org/article/0348f12b32a84af0b82801b7e35ab83e
work_keys_str_mv	AT hayatonakahara finiteelementcomputationwithanisotropichyperelasticmodelconsideringdistributedfibersforartificialandnaturalleatherusedinsports AT akihiromatsuda finiteelementcomputationwithanisotropichyperelasticmodelconsideringdistributedfibersforartificialandnaturalleatherusedinsports
_version_	1718407565946126336

Finite element computation with anisotropic hyperelastic model considering distributed fibers for artificial and natural leather used in sports

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