| Damage identification of low-density material-filled sandwich panels with truss core based on vibration properties | |
Le J(乐杰)1,2; Lu LL(路玲玲)1,3 ; Wang YB(王亚博)1,3; Song HW(宋宏伟)1,3; Xing XD2; Huang CG(黄晨光)1,3
| |
| Corresponding Author | Lu, Lingling([email protected]) |
| Source Publication | STRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL
 |
| 2019-11-01 | |
| Volume | 18Issue:5-6Pages:1711-1721 |
| ISSN | 1475-9217 |
| Abstract | A damage-identification method based on flexibility matrix and Teager energy operator is proposed for low-density material-filled sandwich panels with truss 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 of the proposed method are also discussed. Results reveal that the method is reliable and effective for single-damage and multiple-damages identification of filled sandwich panels with truss core, and weight coefficient plays an important role, especially for cases with multiple damages or damages of small extent. Damage identification 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. |
| Keyword | Filled sandwich panels with truss core damage identification Teager energy operator flexibility matrix filler's influence |
| DOI | 10.1177/1475921718820100 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000487053400023 |
| WOS Keyword | STRUCTURAL PERFORMANCE ; BEHAVIOR |
| WOS Research Area | Engineering ; Instruments & Instrumentation |
| WOS Subject | Engineering, Multidisciplinary ; Instruments & Instrumentation |
| Funding Project | National Natural Science Foundation of China[11472276] ; National Natural Science Foundation of China[11332011] ; National Natural Science Foundation of China[11502268] ; National Defense Basic Scientific Research Program of China[JCKY2016130B009] |
| Funding Organization | National Natural Science Foundation of China ; National Defense Basic Scientific Research Program of China |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | Lu, Lingling |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/80634 |
| Collection | 流固耦合系统力学重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China; 2.Harbin Engn Univ, Sch Mech & Elect Engn, Harbin, Heilongjiang, Peoples R China; 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing, Peoples R China |
| 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,2019,18,5-6,:1711-1721.Rp_Au:Lu, Lingling |
| APA | 乐杰,路玲玲,王亚博,宋宏伟,Xing XD,&黄晨光.(2019).Damage identification of low-density material-filled sandwich panels with truss core based on vibration properties.STRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL,18(5-6),1711-1721. |
| MLA | 乐杰,et al."Damage identification of low-density material-filled sandwich panels with truss core based on vibration properties".STRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL 18.5-6(2019):1711-1721. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| Jp2019409.pdf（3630KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment