利用动态松弛法对承受机械载荷的纳米复合材料圆柱形外壳进行非线性弯曲检验

E. Rahimi, M. Sadeghian, M. E. Golmakani
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引用次数: 0

摘要

本文通过动态松弛(DR)程序,使用一阶剪切变形壳体模型,对承受机械载荷的碳纳米管增强复合材料(CNTRC)壳体进行了非线性弯曲试验。假定复合材料壳体在纵轴上被增强。碳纳米管的弯曲形态分布被认为是沿外壳厚度的功能分级(FG)或均匀分布。根据修正的混合物规则收集成分的机械性能。为进行验证,将本数值结果与现有参考文献和 ABAQUS 有限元软件包进行了比较。最后,研究了碳纳米管(CNTs)分布、厚度半径比、长度半径比、边界条件和碳纳米管体积分数等有效项目对最大非尺寸挠度的作用。
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Nonlinear bending examination of nanocomposite cylindrical shell exposed to mechanical loads using dynamic relaxation method
In the current context, the nonlinear bending examination of a carbon nanotube reinforced composite (CNTRC) shell exposed to mechanical loading using the first-order shear deformation shell model via the dynamic relaxation (DR) procedure, is perused. The composite shell is assumed to be reinforced in the longitudinal axis. The curved morphology distribution of CNTs is considered to be functionally graded (FG) or uniform along the shell thickness. Mechanical properties of the constituents are gathered based on the modified rule of the mixture. For verification, the present numeric outcomes are compared with available references and ABAQUS finite element package. Finally, the roles of effective items including carbon nanotubes (CNTs) distributions, thickness-to-radius and length-to-radius ratios, boundary conditions, and the volume fraction of CNTs are investigated on the maximum non-dimension deflection.
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