A Tensile Constitutive Relationship and a Finite Element Model of Electrospun Nanofibrous Mats

It is difficult to establish a numerical model for a certain structure of electrospun nanofibrous mats, due to their high porosity and non-linear characteristics, that can fully consider these characteristics and describe their mechanical behaviors. In this paper, an analytical method of meso-mechan...

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Main Authors: Yunlei Yin, Zhongxiang Pan, Jie Xiong
Format: Article
Language:English
Published: MDPI AG 2018-01-01
Series:Nanomaterials
Subjects:
Online Access:http://www.mdpi.com/2079-4991/8/1/29
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author Yunlei Yin
Zhongxiang Pan
Jie Xiong
author_facet Yunlei Yin
Zhongxiang Pan
Jie Xiong
author_sort Yunlei Yin
collection DOAJ
description It is difficult to establish a numerical model for a certain structure of electrospun nanofibrous mats, due to their high porosity and non-linear characteristics, that can fully consider these characteristics and describe their mechanical behaviors. In this paper, an analytical method of meso-mechanics was adopted to establish the tensile constitutive relationship between a single fiber and mats from fiber-web microstructures. Meanwhile, a macroscopic finite element model was developed and verified through uniaxial tensile stress-strain experimental data of silk fibroin (SF)/polycaprolactone (PCL) nanofibrous mats. The compared results show that the constitutive relation and finite element model could satisfactorily express elastic-plastic tensile mechanical behaviors of the polymer. This model helps regulate the microstructure of nanofibrous mats to meet the mechanical requirements in engineering applications.
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spelling doaj.art-33640beb165f4d92899ae45b2c2f10e72022-12-22T00:49:57ZengMDPI AGNanomaterials2079-49912018-01-01812910.3390/nano8010029nano8010029A Tensile Constitutive Relationship and a Finite Element Model of Electrospun Nanofibrous MatsYunlei Yin0Zhongxiang Pan1Jie Xiong2School of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaSchool of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaSchool of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaIt is difficult to establish a numerical model for a certain structure of electrospun nanofibrous mats, due to their high porosity and non-linear characteristics, that can fully consider these characteristics and describe their mechanical behaviors. In this paper, an analytical method of meso-mechanics was adopted to establish the tensile constitutive relationship between a single fiber and mats from fiber-web microstructures. Meanwhile, a macroscopic finite element model was developed and verified through uniaxial tensile stress-strain experimental data of silk fibroin (SF)/polycaprolactone (PCL) nanofibrous mats. The compared results show that the constitutive relation and finite element model could satisfactorily express elastic-plastic tensile mechanical behaviors of the polymer. This model helps regulate the microstructure of nanofibrous mats to meet the mechanical requirements in engineering applications.http://www.mdpi.com/2079-4991/8/1/29electrospunmicrostructuresmechanical behaviorfinite element model
spellingShingle Yunlei Yin
Zhongxiang Pan
Jie Xiong
A Tensile Constitutive Relationship and a Finite Element Model of Electrospun Nanofibrous Mats
Nanomaterials
electrospun
microstructures
mechanical behavior
finite element model
title A Tensile Constitutive Relationship and a Finite Element Model of Electrospun Nanofibrous Mats
title_full A Tensile Constitutive Relationship and a Finite Element Model of Electrospun Nanofibrous Mats
title_fullStr A Tensile Constitutive Relationship and a Finite Element Model of Electrospun Nanofibrous Mats
title_full_unstemmed A Tensile Constitutive Relationship and a Finite Element Model of Electrospun Nanofibrous Mats
title_short A Tensile Constitutive Relationship and a Finite Element Model of Electrospun Nanofibrous Mats
title_sort tensile constitutive relationship and a finite element model of electrospun nanofibrous mats
topic electrospun
microstructures
mechanical behavior
finite element model
url http://www.mdpi.com/2079-4991/8/1/29
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