基于RVE方法的炭黑填充黏弹性材料力学行为研究  

RESEARCH ON MECHANICAL BEHAVIOR OF CARBON BLACK FILLED VISCOELASTIC MATERIALS USING RVE METHOD

作　　者：徐业守 徐赵东 郭迎庆[3,4] 黄兴淮[1,2] 葛腾 贺琪 XU Ye-shou;XU Zhao-dong;GUO Ying-qing;HUANG Xing-huai;GE Teng;HE Qi(China-Pakistan Belt and Road Joint Laboratory on Smart Disaster Prevention of Major Infrastructures,Southeast University,Nanjing 211189,China;School of Civil Engineering,Southeast University,Nanjing 211189,China;Mechanical and Electronic Engineering School,Nanjing Forestry University,Nanjing 210037,China;Nanjing Dongrui Damping Control Technology Co.,Ltd.,Nanjing 210033,China)

机构地区：[1]中国-巴基斯坦重大基础设施智慧防灾“一带一路”联合实验室,南京211189 [2]东南大学土木工程学院,南京211189 [3]南京林业大学机械电子工程学院,南京210037 [4]南京东瑞减震控制工程有限公司,南京210033

出　　处：《工程力学》2023年第12期245-256,共12页Engineering Mechanics

基　　金：长江学者奖励计划项目;科学探索奖项目;国家杰出青年科学基金项目(51625803);国家自然科学基金项目(52108443);国家重点研发计划项目(2019YFE0121900);江苏省双创博士项目(JSSCBS20210132);东南大学至善学者项目(2242022R40041)。

摘　　要：黏弹性材料在消声降噪、精密仪器减振和建筑结构防震减灾等领域存在较多应用。炭黑、白炭黑等填料体系是黏弹性材料的重要组成部分。该文采用随机序列吸附方法,建立了不同体积炭黑填充黏弹性材料的代表体积单元(RVE)模型,基于有效体积分数对有限元模型进行修正,从细观尺度对不同体积分数炭黑填充黏弹性材料的弹性力学行为和动态耗能指标进行了计算分析,与经验值和试验结果进行了对比验证。结果表明:采用有效体积分数建模时,RVE方法计算得到不同体积分数下炭黑填充黏弹性材料的应力-应变曲线、动态耗能指标均能与试验和理论结果较好吻合。The viscoelastic materials have many applications in the fields of noise reduction,of vibration control for precision instrument,and of earthquake prevention and,of disaster reduction for building structures.Filling systems such as carbon black and silicon are important components of viscoelastic materials.Thusly,the random sequence absorption method is used to establish representative volume element(RVE)models of carbon blackfilled viscoelastic materials with different volume fractions,and the finite element model is modified upon the effective volume fraction.The mechanical behavior and dynamic energy dissipation index of the carbon blackfilled viscoelastic material with different volume fractions is calculated and analyzed at mesoscale,and it is also compared with empirical values and test data.It shows that the stress-strain curve and dynamic energy dissipation index of the carbon black-filled viscoelastic material with different volume fractions calculated by the RVE method are in a good agreement with the experimental and theoretical results when utilizing effective volume fraction to build the models.

关 键 词：防灾减灾工程 黏弹性材料 炭黑 力学行为 细观尺度 

分 类 号：TU375.4[建筑科学—结构工程] O341[理学—固体力学]