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Wave propagation due to impact through layered polymer composites

机译:通过层状聚合物复合材料的撞击导致波传播

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摘要

The aim of this paper is to study the impact response of a large layered viscoelastic plate by subjecting it to a ramp displacement at one end of plate while the other end is fixed. The small strain nonlinear response of the material is modeled using a implicit two network theory. A finite volume technique is used to solve the momentum equation together with a one step explicit scheme for the time evaluation and in order to capture the wave propagation phenomena. Polymethylmethacrylate (PMMA) and Polycarbonate (PC) are used in this study. The stress, velocity propagation and their interactions at the interface studies were carried out for: (1) pure PC, (2) pure PMMA, (3) bilayer (PMMA/PC), (4) bilayer (PC/PMMA), (5) trilayer (PC/PMMA/PC) and (6) trilayer (PMMA/PC/PMMA) are compared. Results indicate that the stress on the wall was lowest when using a trilayer (PMMA/PC/PMMA).
机译:本文的目的是研究大层粘弹性板的冲击响应,方法是在板的一端固定另一端,使它在另一端进行倾斜位移。使用隐式两个网络理论对材料的小应变非线性响应进行建模。有限体积技术用于求解动量方程,并采用一步式显式方案进行时间评估并捕获波传播现象。这项研究中使用了聚甲基丙烯酸甲酯(PMMA)和聚碳酸酯(PC)。在界面研究中进行了应力,速度传播及其相互作用的研究:(1)纯PC,(2)纯PMMA,(3)双层(PMMA / PC),(4)双层(PC / PMMA),( 5)比较了三层(PC / PMMA / PC)和(6)三层(PMMA / PC / PMMA)。结果表明,当使用三层(PMMA / PC / PMMA)时,壁上的应力最低。

著录项

  • 来源
    《Composite Structures》 |2014年第8期|1-11|共11页
  • 作者单位

    Department of Mechanical Engineering, Texas A&M University, College Station, TX 77843-3123, United States;

    Department of Mechanical Engineering, Texas A&M University, College Station, TX 77843-3123, United States;

    Department of Mechanical Engineering, Texas A&M University, College Station, TX 77843-3123, United States;

  • 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

    Wave propagation; Polymers; Finite volume; Nonlinear; Implicit; Viscoelasticity;

    机译:波传播;聚合物;有限的体积;非线性隐式粘弹性;

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