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https://hdl.handle.net/2440/60874
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Type: | Journal article |
Title: | Detection of delamination damage in a composite laminate beam utilising the principle of strain compatibility |
Author: | Wildy, S. Cazzolato, B. Kotooussov, A. |
Citation: | Key Engineering Materials, 2010; 417-418:269-272 |
Publisher: | Trans Tech Publications |
Issue Date: | 2010 |
ISSN: | 1013-9826 1662-9795 |
Editor: | Aliabadi, M.H. Abela, S. Baragetti, S. Guagliano, M. Lee, H.S. |
Statement of Responsibility: | Stuart Wildy, Benjamin Cazzolato and Andrei Kotousov |
Abstract: | This paper presents an experimental investigation of a new method for damage detection based on the most fundamental concept in continuum mechanics: strain compatibility. Compliance with this principle implies a deformed material is free from discontinuities, which are indicative of many types of structural damage. Therefore the principle of strain compatibility, in its ability to identify discontinuities, is very promising as a new foundation for future research into non-destructive evaluation and structural health monitoring technologies. The proposed method has many advantages compared to existing damage detection techniques, such as its invariance to material properties, type and intensity of loading, and the geometry of the structure. In this paper, a proposed formulation of the strain compatibility equation for beam structures, which is invariant to loading intensity, is presented. An experimental investigation of the proposed algorithm was conducted on a delaminated cantilever beam, utilising a PSV-3D scanning laser vibrometer. The experiment demonstrated that the strain compatibility technique can accurately locate delamination damage in composite beam structures. |
Keywords: | Damage Detection Delamination Non-Destructive Evaluation Scanning Laser Vibrometer Strain Compatibility Structural Health Monitoring (SHM) |
Rights: | (c) 2010 Trans Tech Publications |
DOI: | 10.4028/www.scientific.net/KEM.417-418.269 |
Published version: | http://dx.doi.org/10.4028/www.scientific.net/kem.417-418.269 |
Appears in Collections: | Aurora harvest 5 Environment Institute publications Materials Research Group publications Mechanical Engineering publications |
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