Study on dynamic characteristics of smart composite laminates with partially debonded piezoelectric actuator

Bin Huang, Heung Soo Kim, Gil Ho Yoon

Research output: Contribution to journalConference article

Abstract

The dynamic characteristics of smart composite laminates with partially debonded piezoelectric actuator are investigated in this work. The proposed work introduces an improved layerwise theory based mathematical modeling with the Heaviside unit step functions to allow the possible sliding of the in-plane displacements and jump of the out-of-plane displacements for the debonded area. The finite element implementation is conducted using the four-node plate element to derive the governing equation. The dynamic characteristics are investigated by the frequency domain and time domain. The influence of actuator debonding to the natural frequencies is subtler for such kind of smart composite structures. The debonding of piezoelectric actuator also decreases its actuation ability that is reflected in the magnitudes of the system response. The proposed method can well predict the responses of the smart composite laminates with actuator debonding failures and it could be applied to the further damage detection methods.

Original languageEnglish
Article number943414
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume9434
Issue numberJanuary
DOIs
StatePublished - 2015 Jan 1
EventNanosensors, Biosensors, and Info-Tech Sensors and Systems 2015 - San Diego, United States
Duration: 2015 Mar 92015 Mar 11

Fingerprint

Debonding
Composite Laminates
Piezoelectric Actuator
piezoelectric actuators
Piezoelectric actuators
Dynamic Characteristics
dynamic characteristics
laminates
Laminates
composite materials
Actuator
Composite materials
Actuators
actuators
Oliver Heaviside
Smart Structures
step functions
Damage Detection
Step function
Composite Structures

Keywords

  • Actuator debonding
  • frequency response
  • improved layerwise theory
  • natural frequency
  • smart composite laminate
  • transient response

Cite this

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Study on dynamic characteristics of smart composite laminates with partially debonded piezoelectric actuator. / Huang, Bin; Kim, Heung Soo; Yoon, Gil Ho.

In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 9434, No. January, 943414, 01.01.2015.

Research output: Contribution to journalConference article

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