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Proceedings Paper

Development of embedded sensor models in composite laminates for structural health monitoring
Author(s): Heung Soo Kim; Anindya Ghoshal; Aditi Chattopadhyay; William H. Prosser
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Paper Abstract

A new improved nonlinear transient generalized layerwise theory for modeling embedded discrete and continuous sensor(s) outputs in laminated composite plates with acoustic emission from cracks and embedded delaminations is developed. The computational modeling involves development of a finite element scheme using an improved layerwise laminate theory for a composite laminate plate with embedded discrete and continuous sensors and embedded discrete delaminations. The simulated cases studied included cantilever plates with embedded sensors and embedded delamination under low frequency vibration and square plates with discrete embedded sensors and continuous embedded sensor architecture and embedded discrete delaminations under high frequency acoustic emission. The effect on sensor outputs due to scattering of the acoustic emission due to the presence of delamination is also investigated. It is expected that this analytical model would be a useful tool for numerical simulation of composite laminated structures with embedded delaminations and embedded sensor architecture, particularly since experimental investigation could often be prohibitive to simulate different conditions.

Paper Details

Date Published: 5 August 2003
PDF: 12 pages
Proc. SPIE 5056, Smart Structures and Materials 2003: Smart Structures and Integrated Systems, (5 August 2003); doi: 10.1117/12.483493
Show Author Affiliations
Heung Soo Kim, Arizona State Univ. (United States)
Anindya Ghoshal, NASA Langley Research Ctr. (United States)
Aditi Chattopadhyay, Arizona State Univ. (United States)
William H. Prosser, NASA Langley Research Ctr. (United States)

Published in SPIE Proceedings Vol. 5056:
Smart Structures and Materials 2003: Smart Structures and Integrated Systems
Amr M. Baz, Editor(s)

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