Non-reflecting boundary condition for Lamb wave propagation problems in honeycomb and CFRP plates using dashpot elements

Non-reflecting boundary condition for Lamb wave propagation problems in honeycomb and CFRP plates using dashpot elements
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使用阻尼器单元解决蜂窝和 CFRP 板中兰姆波传播问题的无反射边界条件

DOI:
10.1016/j.compositesb.2013.04.061
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发表时间:
2013
影响因子:
13.1
通讯作者:
Gabbert
Gabbert
中科院分区:
工程技术1区
文献类型:
--
作者:
Hosseini;Duczek;Gabbert

文献摘要

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本文的目的是引入一种新的无反射边界条件,使用阻尼器元素。这是一个有用的工具,有效地模拟兰姆波在复合材料结构,如蜂窝和CFRP板的传播。由于兰姆波在现代在线结构健康监测技术中的应用日益受到关注,最近进行了一些数值和实验研究。所提出的边界条件的优点,减少所需的计算成本,模拟波在异质材料的传播。不同的参数,可以影响这样的人工边界的功能进行了讨论,并提出了几个应用程序。最后,对结果进行了实验验证.
The paper’s objective is to introduce a new non-reflecting boundary condition using dashpot elements. This is an useful tool to efficiently simulate Lamb wave propagation within composite structures, such as honeycomb and CFRP plates. Due to the steadily increasing interest in applying Lamb waves in modern online structural health monitoring techniques, several numerical and experimental studies have been carried out recently. The proposed boundary condition poses the advantage of reducing the computational costs required to simulate the wave propagation in heterogenous materials. Different parameters which can influence the functionality of such an artificial boundary are discussed and several applications are presented. Finally, the results are also experimentally validated.
DOI: 10.1006/jcph.1994.1159
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