Effect of delamination on transient history of smart composite plates

Anindya Ghoshal, Heung Soo Kim, Aditi Chattopadhyay, William H. Prosser

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

The transient analysis of delaminated composite and smart composite plates is studied using a newly developed improved layerwise laminate theory, extended to include large deformation and the interlaminar contact during 'breathing' phenomena in the delaminated zone. The theory is capable of capturing interlaminar shear stresses that are critical to delamination. The presence of multiple, discrete delaminations is modeled through the use of Heaviside step functions. Stress free boundary conditions are enforced at all free surfaces and continuity in displacement field and transverse shear stresses are enforced at each ply level. In modeling piezoelectric composite plates, a coupled piezoelectric-mechanical formulation is used in the development of the constitutive equations. Numerical analysis is conducted to investigate the effect of nonlinearity in the transient vibration, attributable to large displacements and rotations and to the coupled effect of the large deformation and bimodular behavior caused by the contact impact of delaminated interfaces. Composite plates with delaminations, subject to external loads and voltage history from surface bonded sensors, are investigated and the results are compared with corresponding linear transient history, experimental results and plates without delamination.

Original languageEnglish (US)
Pages (from-to)850-874
Number of pages25
JournalFinite Elements in Analysis and Design
Volume41
Issue number9-10
DOIs
StatePublished - May 2005

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Composite Plates
Delamination
Composite materials
Large Deformation
Shear Stress
Shear stress
Contact
Heaviside step function
Large Displacements
Transient Analysis
Laminates
Constitutive Equation
Constitutive equations
Free Boundary
Transient analysis
Free Surface
Numerical analysis
Numerical Analysis
Transverse
Vibration

ASJC Scopus subject areas

  • Computer Science Applications
  • Computational Mechanics

Cite this

Effect of delamination on transient history of smart composite plates. / Ghoshal, Anindya; Kim, Heung Soo; Chattopadhyay, Aditi; Prosser, William H.

In: Finite Elements in Analysis and Design, Vol. 41, No. 9-10, 05.2005, p. 850-874.

Research output: Contribution to journalArticle

Ghoshal, Anindya ; Kim, Heung Soo ; Chattopadhyay, Aditi ; Prosser, William H. / Effect of delamination on transient history of smart composite plates. In: Finite Elements in Analysis and Design. 2005 ; Vol. 41, No. 9-10. pp. 850-874.
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