Two-Dimensional Modal Curvature for Damage Detection in Plates |
| |
Authors: | Cao Maosen Pan Lixia Han Yi |
| |
Affiliation: | Department of Engineering Mechanics, Hohai University, Nanjing 210098, P.R.China |
| |
Abstract: | Mode shape has become a hotspot of vibration-based damage detection in plates.Two-dimensional(2D)modal curvature(MC2D),derived from mode shapes,is a prevailing physical quantity used to indicate damage.Unfortunately,the physical mechanism of MC2 Dfor characterizing damage in plates has not been clarified to date.In contrast,one-dimensional(1D)modal curvature(MC1D)has explicit physical mechanism to portray damage in beams.Unresolved physical mechanism of MC2 Dseverely hampers its applications for damage identification in plates.To address this deficiency,the clarification mechanism of MC2 Dis investigated to identify damage.With the clarified mechanism,numerical and experimental cases are used to demonstrate the effectiveness of MC2 Din detecting damage in plates. |
| |
Keywords: | damage detection mode shape 2D modal curvature crack scanning laser vibrometer (SLV) |
本文献已被 CNKI 等数据库收录! |
|