New higher-order plate theory in modeling delamination buckling of composite laminates

Haozhong Gu, Aditi Chattopadhyay

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

6 Citations (Scopus)

Abstract

A new higher-order plate theory for modeling delamination buckling and postbuckling of composite laminates is developed. Delaminations between layers of composite plates are modeled by jump discontinuity conditions, in both lower and higher order terms of displacements, at the delaminated interfaces. Some higher-order terms are identified at the beginning of the formulation by using the conditions that shear stresses vanish at all free surfaces including at the delaminated interfaces. Therefore, all boundary conditions for displacements and stresses are satisfied in the present theory. Geometric nonlinearity is included in computing layer buckling. The general governing equations, along with all boundary and continuity conditions of plates, are derived for predicting the delamination buckling and postbuckling behavior. The associated delamination growth problem is also examined using Griffith-type fracture criterion. A numerical example is presented to validate the theory. The results are also compared with experimentally obtained data.

Original languageEnglish (US)
Title of host publicationCollection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
PublisherAIAA
Pages504-513
Number of pages10
Volume1
StatePublished - 1994
EventProceedings of the 35th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. Part 1 (of 5) - Hilton Head, SC, USA
Duration: Apr 18 1994Apr 20 1994

Other

OtherProceedings of the 35th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. Part 1 (of 5)
CityHilton Head, SC, USA
Period4/18/944/20/94

Fingerprint

Delamination
Laminates
Buckling
Composite materials
Shear stress
Boundary conditions

ASJC Scopus subject areas

  • Architecture

Cite this

Gu, H., & Chattopadhyay, A. (1994). New higher-order plate theory in modeling delamination buckling of composite laminates. In Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference (Vol. 1, pp. 504-513). AIAA.

New higher-order plate theory in modeling delamination buckling of composite laminates. / Gu, Haozhong; Chattopadhyay, Aditi.

Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. Vol. 1 AIAA, 1994. p. 504-513.

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

Gu, H & Chattopadhyay, A 1994, New higher-order plate theory in modeling delamination buckling of composite laminates. in Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. vol. 1, AIAA, pp. 504-513, Proceedings of the 35th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. Part 1 (of 5), Hilton Head, SC, USA, 4/18/94.
Gu H, Chattopadhyay A. New higher-order plate theory in modeling delamination buckling of composite laminates. In Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. Vol. 1. AIAA. 1994. p. 504-513
Gu, Haozhong ; Chattopadhyay, Aditi. / New higher-order plate theory in modeling delamination buckling of composite laminates. Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. Vol. 1 AIAA, 1994. pp. 504-513
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