山棕纤维/天然乳胶复合材料床垫的横观各向同性参数研究  

Study on Transverse Isotropy Parameter of Palm Fiber/Natural Latex Composite Mattress

作　　者：张淞凯 袁鸿[1] ZHANG Songkai;YUAN Hong(MOE Key Laboratory of Disaster Forecast and Control in Engineering,Institute of Applied Mechanics,Jinan University,Guangzhou 510632,China)

机构地区：[1]暨南大学重大工程灾害与控制教育部重点实验室,应用力学研究所,广州510632

出　　处：《材料导报》2020年第22期22154-22161,共8页Materials Reports

基　　金：国家自然科学基金(11032005);黔科合院士工作站((2015)4004)。

摘　　要：近年来,人们越来越重视绿色环保和可持续发展,自然纤维复合材料开始得到更多的关注。山棕纤维/天然乳胶复合材料床垫是以山棕纤维作为增强体,含碳酸钙的天然乳胶作为基体,采用床垫压制工艺制备的复合材料。基于山棕纤维/天然乳胶复合材料床垫的制作工艺,可以认为其具有横观各向同性。本研究通过设计三种不同的力学实验来测定五个材料参数,从而建立山棕纤维/天然乳胶复合床垫的刚度矩阵和本构方程。在此基础上,利用有限元软件建立模型对实验结果进行模拟和验证。结果表明,横观各向同性材料模型对山棕纤维/天然乳胶复合材料床垫具有较高的模拟精度和可信度。In recent years,as a mounting number of attention has been paid to green environmental protection and sustainable development,the natural fiber material has become a heated topic in research.Palm fiber/natural latex(PF/NL)composite mattress was prepared by production process of mattress,with the palm fibers(PF)as reinforcement and natural latex(NL)as matrix.Based on this process,this paper proposed a hypothesis that the PF/NL composite mattress had transverse isotropic.By designing three different mechanical experiments,five different material parameters of the PF/NL composite mattress could be measured.After that,we could establish the stiffness matrix of the PF/NL composite mattress and constitutive equation.On this basis,the finite element model built by the finite element software was used to verify the experimental results.The conclusion is that transverse isotropic model has high accuracy and credibility for the simulation of PF/NL composite mattress.

关 键 词：山棕纤维 力学性能 复合材料 数值模拟 

分 类 号：TS664[轻工技术与工程]