IMECH-IR  > 流固耦合系统力学重点实验室
Damage identification of low-density material filled sandwich panels with truss core based on vibration properties
Le J; Lu LL(路玲玲); Wang YB; Song HW(宋宏伟); Xing XD; Huang CG(黄晨光)
Source PublicationSTRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL
2018
Pages10.1177/1475921718820100
ISSN1475-9217
Abstract

 

damage-identification method based on flexibility matrix and Teager energy operator is proposed for low-density materialfilled sandwich panels withtruss core. In the proposed damage index, weight coefficient r is introduced to consider the effect of damages on both high-order and low-order modes. Numerical simulations and experiments are conducted to assess the performance of the proposed method. Effects of Young’s modulus of the filler material on the accuracy ofthe proposed method are also discussed. Results reveal that the method is reliable and effective for single-damage and multiple-damages identification of filledsandwich panels with truss core, and weight coefficient plays an important role, especially for cases with multiple damages or damages of small extent. Damageidentification becomes more difficult as Young’s modulus of the filler increases, and there is a critical value, after which the damage could not be identified by the proposed method.
DOI10.1177/1475921718820100
Indexed ByEI
Language英语
Classification一类
Ranking1
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/78245
Collection流固耦合系统力学重点实验室
Recommended Citation
GB/T 7714
Le J,Lu LL,Wang YB,et al. Damage identification of low-density material filled sandwich panels with truss core based on vibration properties[J]. STRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL,2018:10.1177/1475921718820100.
APA Le J,Lu LL,Wang YB,Song HW,Xing XD,&Huang CG.(2018).Damage identification of low-density material filled sandwich panels with truss core based on vibration properties.STRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL,10.1177/1475921718820100.
MLA Le J,et al."Damage identification of low-density material filled sandwich panels with truss core based on vibration properties".STRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL (2018):10.1177/1475921718820100.
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