西安工程大学学报2024，Vol.38Issue(3)：8-14,7.DOI:10.13338/j.issn.1674-649x.2024.03.002
芳纶柔性复合材料防刺机理有限元模拟
Finite element simulation of anti-stab mechanism of aramid flexible composites
摘要
Abstract
In order to predict the anti-stabbing performance of aramid flexible composite and to investigate the basic law of the response of aramid flexible composites to knife penetration,aramid flexible composites were prepared by impregnation with multi-phase shear thickening solution and coating with silicon carbide/thermoplastic polyurethane as well as extraction and quasi-static stabbing experiments.Finite element simulations of a single-layer quasi-static knifed aramid com-posite model and a multi-layer dynamic knifed aramid composite model were established by refi-ning the friction coefficients,and Python script was used to effectively simplify the modeling process to investigate the anti-knife stabbing mechanism of aramid flexible composites.The re-sults show that the friction coefficient between yarns of the silicon carbide/thermoplastic polyure-thane coated aramid composites is the highest.The friction coefficient between yarns impregnated with shear thickening solution is good and does not limit yarn stretching deformation,and has good anti-stabbing property.The main failure mode of multi-layer aramid fabric during dynamic puncture process is yarn breakage and yarn deformation is less.The establishment of the model can provide a reference for fast and accurate prediction of the anti-stabbing properties of flexible composites.关键词
芳纶/柔性复合材料/防刺机理/穿刺模拟Key words
aramid/flexible composites/anti-stab mechanism/puncture simulation分类
轻工纺织引用本文复制引用
王蕊宁,侯宵,张亚娟,贾笑娅..芳纶柔性复合材料防刺机理有限元模拟[J].西安工程大学学报,2024,38(3):8-14,7.基金项目
陕西省教育厅重点实验室项目(20JS049) （20JS049）
