Delamination modeling and detection in smart composite plates

Aditi Chattopadhyay, Changho Nam, M. (Dan) Dragomir Daescu

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

A refined model for smart composite plates with delamination is developed. The modeling is based on a third order refined displacement field, which satisfies the stress free boundary conditions at all free surfaces including delamination interfaces. The displacement field also accounts for the presence of distributed piezoelectric actuators. The mathematical model is implemented using the finite element method. The dynamic strain is analyzed for smart composites with and without delamination. Next, a new approach is investigated for the detection of delamination in smart composites based on the Root-Mean Square (RMS) values of the plate response subject to disturbances. Numerical results presented show accurate location of the delamination and its size.

Original languageEnglish (US)
Pages (from-to)1557-1572
Number of pages16
JournalJournal of Reinforced Plastics and Composites
Volume18
Issue number17
DOIs
StatePublished - Jan 1 1999
Externally publishedYes

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Delamination
Composite materials
Piezoelectric actuators
Boundary conditions
Mathematical models
Finite element method

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering
  • Polymers and Plastics
  • Materials Chemistry

Cite this

Delamination modeling and detection in smart composite plates. / Chattopadhyay, Aditi; Nam, Changho; Dragomir Daescu, M. (Dan).

In: Journal of Reinforced Plastics and Composites, Vol. 18, No. 17, 01.01.1999, p. 1557-1572.

Research output: Contribution to journalArticle

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