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Elastodynamic analysis of quadrilateral CNT-reinforced functionally graded composite plates using FSDT element-free method

机译:使用FSDT无元素法对四边形CNT增强功能梯度复合板进行的弹性动力学分析

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摘要

An elastodynamic analysis of quadrilateral carbon nanotube (CNT) reinforced functionally graded composite plates subjected to a transverse sudden dynamic load is studied. Based on the first-order shear deformation theory (FSDT), the element-free IMLS-Ritz method is extended to conduct a numerical simulation for this study. A numerical time integration for the dynamic problems is performed using the Newmark-b method. To verify the stability and accuracy of the element-free IMLS-Ritz method, convergence studies are carried out for an isotropic square plate with different support sizes and different numbers of nodes. Detailed numerical simulations are further carried out to investigate the effect of CNT volume fraction, CNT distribution type, side angles, area of quadrilateral plate, plate width-to-thickness ratio and boundary condition on the dynamic behaviors of quadrilateral CNT reinforced composite plates. (C) 2016 Elsevier Ltd. All rights reserved.
机译:研究了四边形碳纳米管(CNT)增强功能梯度复合板承受横向突然动态载荷的弹性力学分析。基于一阶剪切变形理论(FSDT),扩展了无元素IMLS-Ritz方法,以进行本研究的数值模拟。使用Newmark-b方法对动力学问题进行数值时间积分。为了验证无元素IMLS-Ritz方法的稳定性和准确性,对具有不同支撑尺寸和不同节点数的各向同性方板进行了收敛研究。进一步进行了详细的数值模拟,以研究碳纳米管的体积分数,碳纳米管的分布类型,边角,四边形板的面积,板的宽厚比和边界条件对四边形CNT增强复合材料板动力特性的影响。 (C)2016 Elsevier Ltd.保留所有权利。

著录项

  • 来源
    《Composite Structures》 |2016年第7期|144-154|共11页
  • 作者单位

    Shanghai Ocean Univ, Coll Informat Sci & Technol, Shanghai 201306, Peoples R China;

    Shanghai Ocean Univ, Coll Informat Sci & Technol, Shanghai 201306, Peoples R China;

    Shanghai Ocean Univ, Coll Informat Sci & Technol, Shanghai 201306, Peoples R China;

    City Univ Hong Kong, Dept Architecture & Civil Engn, Kowloon, Hong Kong, Peoples R China|City Univ Hong Kong, Shenzhen Res Inst Bldg,Shenzhen Hitech Ind Pk, Shenzhen, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Element-free IMLS-Ritz method; FSDT; Elastodynamic analysis; CNT reinforced composite; Quadrilateral plate;

    机译:无元素IMLS-Ritz法;FSDT;弹性力学分析;CNT增强复合材料;四边形板;

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