Delamination characterization of laminated composite structures based on smooth transition of displacement

Heung Soo Kim, Jaehwan Kim, Seung Bok Choi, Anindya Ghoshal, Aditi Chattopadhyay

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

Abstract

A modal strain based damage index is proposed to investigate the damage effects of discrete delaminations in a laminated composite structure. The Fermi-Dirac distribution function is incorporated with an improved layerwise laminate theory to model smooth transition of the displacement and the strain fields at the delaminated interfaces. Finite element technique is used to implement the proposed displacement field. Modal analysis is conducted to investigate dynamic effects of delaminatioa in a laminated structure and to obtain modal strains. The damage index is calculated based on fundamental modal strains of laminated structures. The damage effects of laminated structures are investigated using arbitrary size, number, location and boundary conditions of discrete delaminations. It is observed that the proposed modal strain damage index provides accurate information of discrete delaminations.

Original languageEnglish (US)
Title of host publicationCollection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Pages6214-6223
Number of pages10
Volume9
StatePublished - 2006
Event47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference - Newport, RI, United States
Duration: May 1 2006May 4 2006

Other

Other47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
CountryUnited States
CityNewport, RI
Period5/1/065/4/06

Fingerprint

Laminated composites
Composite structures
Delamination
Modal analysis
Laminates
Distribution functions
Boundary conditions

ASJC Scopus subject areas

  • Architecture

Cite this

Kim, H. S., Kim, J., Choi, S. B., Ghoshal, A., & Chattopadhyay, A. (2006). Delamination characterization of laminated composite structures based on smooth transition of displacement. In Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference (Vol. 9, pp. 6214-6223)

Delamination characterization of laminated composite structures based on smooth transition of displacement. / Kim, Heung Soo; Kim, Jaehwan; Choi, Seung Bok; Ghoshal, Anindya; Chattopadhyay, Aditi.

Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. Vol. 9 2006. p. 6214-6223.

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

Kim, HS, Kim, J, Choi, SB, Ghoshal, A & Chattopadhyay, A 2006, Delamination characterization of laminated composite structures based on smooth transition of displacement. in Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. vol. 9, pp. 6214-6223, 47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, Newport, RI, United States, 5/1/06.
Kim HS, Kim J, Choi SB, Ghoshal A, Chattopadhyay A. Delamination characterization of laminated composite structures based on smooth transition of displacement. In Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. Vol. 9. 2006. p. 6214-6223
Kim, Heung Soo ; Kim, Jaehwan ; Choi, Seung Bok ; Ghoshal, Anindya ; Chattopadhyay, Aditi. / Delamination characterization of laminated composite structures based on smooth transition of displacement. Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. Vol. 9 2006. pp. 6214-6223
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