Title

Sensory Composite Beams for Delamination Detection in Thermal Environments

Abstract

The feasibility of detection of delaminations in thermal composite structures using piezoelectric layers or patches embedded within or bonded on the laminate is investigated. Characteristic damage signatures are sought, associated with changes in the voltage output of the sensors as a result of thermally-induced strains in the laminate. Analytical solutions are developed within the limits of linear thermopiezoelasticity and laminate theory and the resultant voltage across the piezoelectric sensors is calculated. Numerical examples are presented for cantilever beams subjected to temperature variations and the feasibility of the proposed method is illustrated.

Meeting Name

American Society of Mechanical Engineers, Aerospace Division (Publication) AD (1994, Chicago, IL, USA)

Department(s)

Mechanical and Aerospace Engineering

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1994 American Society of Mechanical Engineers (ASME), All rights reserved.

This document is currently not available here.

Share

 
COinS