| Damage detection of sandwich panels with truss core based on time domain dynamic responses | |
Lu LL(路玲玲) ; Le J(乐杰); Song HW(宋宏伟); Wang YB(王亚博); Huang CG(黄晨光)
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| Source Publication | COMPOSITE STRUCTURES
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| 2019-03-01 | |
| Volume | 211Pages:443-454 |
| ISSN | 0263-8223 |
| Abstract | A damage identification method, based on structural time domain dynamic responses and Teager energy operator, is presented for sandwich panels with truss core in the paper. The dimensionless structural dynamic responses, i.e., dimensionless velocity and displacement, are combined to construct damage index. Application of the method on sandwich panels in the cases of single damage and multiple damages with different extents are conducted. Effects of some factors on the method are discussed, including excitation location, excitation frequency, boundary condition, number of points N in Poincare maps. Numerical and experimental results show that the proposed method is effective in detecting both single damage and multiple damages with different extents. Excitation location plays a very important role in affecting the effectiveness of the method. Excitation frequency has little effect on the method, and there is a great selection space of excitation frequencies. Increasing the boundary condition constraint is beneficial for damage identification. |
| Keyword | Sandwich panel with truss core Damage identification Dimensionless time domain dynamic response Teager energy operator Poincare map |
| DOI | 10.1016/j.compstruct.2018.12.052 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000457709800038 |
| WOS Keyword | IDENTIFICATION ; VIBRATIONS |
| WOS Research Area | Materials Science, Composites |
| WOS Subject | Materials Science |
| Funding Organization | National Natural Science Foundation of China [11472276, 11332011, 11502268] ; National Defense Basic Scientific Research Program of China [JCKY2016130B009] |
| Classification | 二类/Q1 |
| Ranking | 1 |
| Contributor | Song, HW |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/78246 |
| 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, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 3.Harbin Engn Univ, Coll Mech & Elect Engn, Harbin 150001, Heilongjiang, Peoples R China |
| Recommended Citation GB/T 7714 | Lu LL,Le J,Song HW,et al. Damage detection of sandwich panels with truss core based on time domain dynamic responses[J]. COMPOSITE STRUCTURES,2019,211:443-454.Rp_Au:Song, HW |
| APA | 路玲玲,乐杰,宋宏伟,王亚博,&黄晨光.(2019).Damage detection of sandwich panels with truss core based on time domain dynamic responses.COMPOSITE STRUCTURES,211,443-454. |
| MLA | 路玲玲,et al."Damage detection of sandwich panels with truss core based on time domain dynamic responses".COMPOSITE STRUCTURES 211(2019):443-454. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| Jp2019029.pdf（4242KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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