基于ABAQUS的平纹织物同面对向弯曲有限元模拟  

Finite element simulation of bending of plain woven fabrics based on ABAQUS

作　　者：岳旭 王蕾[1] 孙丰鑫 潘如如[1] 高卫东[1] YUE Xu;WANG Lei;SUN Fengxin;PAN Ruru;GAO Weidong(Key Laboratory of Eco-Textiles(Jiangnan University),Ministry of Education,Wuxi,Jiangsu 214122,China)

机构地区：[1]生态纺织教育部重点实验室(江南大学),江苏无锡214122

出　　处：《纺织学报》2024年第8期165-172,共8页Journal of Textile Research

基　　金：中国纺织工业联合会应用基础研究项目(J202109);国家自然科学基金项目(61802152);中国博士后科学基金面上资助项目(2020M681736);江南大学研究生科研与实践创新项目(KYCX-23-ZD01,KYCX-23-ZD02)。

摘　　要：为明晰织物结构对其弯曲性能的影响机制,对织物弯曲过程进行了有限元模拟和实验验证。以涤纶织物为例,通过VHX-5000型超景深数码显微镜观测织物,得到纱线几何参数;根据纱线实际尺寸,利用SolidWorks专业建模软件构建涤纶平纹织物的三维几何模型;基于有限元分析软件ABAQUS研究织物同面对向弯曲性能,分析纱线弹性模量、摩擦因数、泊松比等参数对弯曲实验的影响,并将有限元仿真结果与实验结果进行对比。结果表明:模拟所得抗弯力-位移曲线与实验曲线在0.01水平上呈显著相关,模拟结果与实验结果一致,证明用有限元模拟弯曲织物模型的有效性。Objective In order to quickly estimate the ability of fabrics to resist bending deformation,this study established the co-facing bending model for plain woven fabrics to simulate the bending process of fabric using finite element analysis software,and to predict the bending properties of plain woven fabrics.Method Taking polyester plain woven fabric as an example,the geometric parameters of the fabric were observed by ultra-depth digital microscope and modeled by SolidWorks professional modeling software.The fabric bending system under the condition of splint holding was established in the finite element analysis software ABAQUS,and the yarn material properties were given according to the yarn performance parameters obtained by tensile test.Fabric bending was carried out in the state of moving plate extrusion.The simulation results were compared with the actual test results to verify the validity of the finite element simulation.Results A co-facing bending system for fabrics was established to analyze the fabric′s bending performance.The system employed a fabric bending approach that closely resembled real bending conditions.It comprised two plates,with the upper plate as the movable plate capable of downward displacement and the lower plate as the fixed plate,connected to pressure sensors for detecting changes in fabric bending resistance.By applying continuous compressive force to the fabric,it was induced to undergo bending.Within this system,a co-facing bending model for fabrics was developed and subjected to finite element simulation analysis.Based on the simulation results,it was observed that as the movable plate approached the fixed plate,fabric stress was primarily concentrated in the middle section of the warp yarns,gradually propagating towards both ends with increasing bending amplitude.Furthermore,analysis of yarn stress indicated significant stress changes in the warp yarns during the initial stage of fabric deformation,while the weft yarns did not exhibit such changes.Other parameters remain unch

关 键 词：三维建模 有限元分析 数值模拟 弯曲性能 平纹织物 

分 类 号：TS101.8[轻工技术与工程—纺织工程]