Modeling delaminations in smart composite laminates

Charles E. Seeley, Aditi Chattopadhyay

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Scopus citations

Abstract

A higher order plate theory is used for modeling laminated composites with both surface bonded and embedded piezoelectric actuators and sensors in the presence of delamination. The theory takes into account transverse shear stresses which are important in the analysis of composite laminates. Both mass and stiffness properties of the piezoelectric elements are also included in the formulation. Delamination is modeled at the interface of the actuators and the composite substrate using appropriate boundary conditions. The theory is implemented using the finite element method. For the most common case of debonded surface actuators, delamination is included with no increase in computational effort and does not require additional degrees of freedom to be added. A state space approach is used to formulate the controls equations to study the effects of partially delaminated actuators used to control vibration. Numerical results indicate that the controlled transient response is degraded as the delamination size is increased.

Original languageEnglish (US)
Title of host publicationAIAA/ASME/AHS Adaptive Structures Forum, 1996
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
Pages109-119
Number of pages11
DOIs
StatePublished - 1996
EventAIAA/ASME/AHS Adaptive Structures Forum, 1996 - Salt Lake City, United States
Duration: Apr 18 1996Apr 19 1996

Other

OtherAIAA/ASME/AHS Adaptive Structures Forum, 1996
CountryUnited States
CitySalt Lake City
Period4/18/964/19/96

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Electrical and Electronic Engineering
  • Building and Construction
  • Civil and Structural Engineering

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