玻纤增强尼龙6复合材料界面微观力学行为仿真研究  

Simulation Study on Interfacial Micromechanics of Glass Fiber Reinforced Nylon 6 Composites

作　　者：罗伟权 黄增斌 薛珂 吕冬 丛杰 张锴[4] LUO Weiquan;HUANG Zengbin;XUE Ke;LV Dong;CONG Jie;ZHANG Kai(School of System Design and Intelligent Manufacturing,Southern University of Science and Technology,Shenzhen 518055,Guangdong,China;Guangzhou HKUST Fok Ying Tung Research Institute,Guangzhou 511458,Guangdong,China;Hong Kong University of science and Technology(Guangzhou),Guangzhou 511458,Guangdong,China;School of Aerospace Engineering and Applied Mechanics,Tongji University,Shanghai 200092,China)

机构地区：[1]南方科技大学系统设计与智能制造学院,广东深圳518055 [2]广州市香港科大霍英东研究院,广东广州511458 [3]香港科技大学(广州),广东广州511458 [4]同济大学航空航天与力学学院,上海200092

出　　处：《力学季刊》2022年第4期762-770,共9页Chinese Quarterly of Mechanics

基　　金：广东省科学技术厅-粤港澳联合创新项目(2020A0505090003);常州市科学技术局-国际科技合作项目(CZ20220001);广州市黄埔区科学技术局-国际科技合作项目(2021GH09)。

摘　　要：本文基于双线性内聚力模型,采用Abaqus对玻纤增强尼龙6复合材料的纤维推出过程进行计算机仿真研究,成功计算了玻纤与尼龙6的界面强度,并利用纳米压痕试验进行验证.结果表明,仿真模型可以较好地模拟真实测试过程,样品的初始弯曲变形是测试结果与理论计算值存在差异的主要原因.单纤维推出过程的有限元模拟及试验为理解复合材料的界面性能提供了有效的方法,也为复合材料跨尺度失效准则及其损伤演化的研究提供微观力学模型.Based on the bilinear cohesion model, this paper employed Abaqus to conduct a computer simulation study on the fiber push-out process of glass fiber reinforced nylon 6 composite material. The interface strength between glass fiber and nylon 6 was successfully calculated, and the results were verified using the nanoindentation test. The simulation results were in good agreement with the test results. The initial bending deformation of the sample was the main reason for the difference between the experimental and the theoretical results. The finite element simulation and experiment of the single fiber push-out process test provide effective approaches for understanding the interface properties of composite materials, and also provide a micromechanical model for the study of the trans-scale failure criteria and damage evolution of the composite material.

关 键 词：尼龙6 复合材料 纤维推出 微观界面性能 有限元仿真 

分 类 号：TB332[一般工业技术—材料科学与工程]