基于导波的SHM系统测试的结构损伤建模

2011 Fourth International Conference on Modeling, Simulation and Applied Optimization Pub Date : 2011-04-19 DOI:10.1109/ICMSAO.2011.5775618

P. Paćko, L. Ambrozinski, T. Uhl

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引用次数: 5

摘要

弹性波传播过程的结构损伤建模是结构健康监测系统仿真测试的基础。需要通过模拟方法再现弹性波与结构缺陷相互作用的反射、透射等复杂现象，以数值方法代替物理测试，辅助SHM系统的设计过程。综述了目前常用的弹性波传播模拟方法，指出了它们的优缺点。随后提出了裂纹和分层建模的方法。将提出的模型用于设计的SHM系统的数值试验。仿真结果与实验结果吻合较好。最后，利用结构损伤模型对分层定位算法进行了验证。

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Structure damage modelling for guided waves-based SHM systems testing

Structure damage modelling for the simulation of elastic wave propagation is essential for simulation-based testing of structural health monitoring (SHM) systems. Reflection, transmission and other complex phenomena related to elastic wave interaction with structure defects need to be reproduced by the simulation method to replace physical testing by numerical one and aid the design process of SHM system. Authors review commonly used methods for the simulation of elastic wave propagation pointing out their advantages and disadvantages. Subsequently methods for crack and delamination modelling are presented. Proposed models are used for numerical testing of designed SHM system. Simulation results are compared with experimental ones, showing very good agreement. Finally, structure damage models are used for testing delamination localization algorithm.

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2011 Fourth International Conference on Modeling, Simulation and Applied Optimization

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