Investigation of the dynamic effects of partial sensor debonding in smart composite laminates

Asif Khan, Heung Soo Kim

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Dynamic characteristics of smart composite laminate with partially debonded piezoelectric sensor are investigated. Improved layerwise theory with Heaviside's unit step function is used to model the discontinuous displacement field with jumps owing to the in-plane slipping and out-of-plane opening at the debonded interface. Higher order electric potential field is employed to describe the potential variation through the thickness of piezoelectric patches. Finite element method and extended Hamilton's principle are used to derive the governing equation of motion. The governing equation is solved in time domain using Newmark time integration algorithm. The developed model is numerically implemented on a laminated composite plate with surface bonded piezoelectric actuator and partially debonded sensor. The sensing capability is evaluated in the presence of partial inner and edge debonding in the piezoelectric sensor.

Original languageEnglish
Title of host publicationNanosensors, Biosensors, and Info-Tech Sensors and Systems 2016
EditorsVijay K. Varadan
PublisherSPIE
ISBN (Electronic)9781510600430
DOIs
StatePublished - 2016
EventNanosensors, Biosensors, and Info-Tech Sensors and Systems 2016 - Las Vegas, United States
Duration: 21 Mar 201624 Mar 2016

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9802
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceNanosensors, Biosensors, and Info-Tech Sensors and Systems 2016
Country/TerritoryUnited States
CityLas Vegas
Period21/03/1624/03/16

Keywords

  • improved layerwise theory
  • Partial debonding
  • piezoelectric sensor
  • smart composite laminate

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