ANALYSIS OF NONLINEAR FLEXURAL BEHAVIOR OF THICK COMPOSITES WITH FIBER WAVINESS

H. J. Chun; S. W. Lee; I. M. Daniel

doi:10.1115/IMECE1999-0899

ANALYSIS OF NONLINEAR FLEXURAL BEHAVIOR OF THICK COMPOSITES WITH FIBER WAVINESS

H. J. Chun, S. W. Lee, I. M. Daniel

Department of Mechanical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

A finite element analysis model was developed to predict flexural behavior of thick composites with uniform, graded and localized fiber waviness. In the analyses, material and geometrical nonlinearties due to fiber waviness were incorporated into the model utilizing energy density and an incremental method. In the model, two kinds of geometrical nonlinearity were considered, one due to reorientation of fibers and the other due to difference of curvatures from one finite element to another during deformation. The finite element analyses utilize the iterative mapping method to incorporate these geometrical nonlinear factors. The model was used to predict not only the flexural behavior of a flat thick composite plate but also of a thick composite plate with initial curvature. Flat composite specimens with various degrees of fiber waviness were fabricated and four-point flexural tests were conducted. The predicted nonlinear behavior by the current model was compared with results from the thin slice model [7] and experiments, Good agreement was observed among them.

Original language	English
Title of host publication	Thick Composites for Load Bearing Structures
Publisher	American Society of Mechanical Engineers (ASME)
Pages	9-20
Number of pages	12
ISBN (Electronic)	9780791816523
DOIs	https://doi.org/10.1115/IMECE1999-0899
Publication status	Published - 1999
Event	ASME 1999 International Mechanical Engineering Congress and Exposition, IMECE 1999 - Nashville, United States Duration: 1999 Nov 14 → 1999 Nov 19

Publication series

Name	ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Volume	1999-AF

Conference

Conference	ASME 1999 International Mechanical Engineering Congress and Exposition, IMECE 1999
Country/Territory	United States
City	Nashville
Period	99/11/14 → 99/11/19

Bibliographical note

Publisher Copyright:
© 1999 American Society of Mechanical Engineers (ASME). All rights reserved.

All Science Journal Classification (ASJC) codes

Mechanical Engineering

Access to Document

10.1115/IMECE1999-0899

Cite this

Chun, H. J., Lee, S. W., & Daniel, I. M. (1999). ANALYSIS OF NONLINEAR FLEXURAL BEHAVIOR OF THICK COMPOSITES WITH FIBER WAVINESS. In Thick Composites for Load Bearing Structures (pp. 9-20). (ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE); Vol. 1999-AF). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/IMECE1999-0899

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abstract = "A finite element analysis model was developed to predict flexural behavior of thick composites with uniform, graded and localized fiber waviness. In the analyses, material and geometrical nonlinearties due to fiber waviness were incorporated into the model utilizing energy density and an incremental method. In the model, two kinds of geometrical nonlinearity were considered, one due to reorientation of fibers and the other due to difference of curvatures from one finite element to another during deformation. The finite element analyses utilize the iterative mapping method to incorporate these geometrical nonlinear factors. The model was used to predict not only the flexural behavior of a flat thick composite plate but also of a thick composite plate with initial curvature. Flat composite specimens with various degrees of fiber waviness were fabricated and four-point flexural tests were conducted. The predicted nonlinear behavior by the current model was compared with results from the thin slice model [7] and experiments, Good agreement was observed among them.",

author = "Chun, {H. J.} and Lee, {S. W.} and Daniel, {I. M.}",

note = "Publisher Copyright: {\textcopyright} 1999 American Society of Mechanical Engineers (ASME). All rights reserved.; ASME 1999 International Mechanical Engineering Congress and Exposition, IMECE 1999 ; Conference date: 14-11-1999 Through 19-11-1999",

year = "1999",

doi = "10.1115/IMECE1999-0899",

language = "English",

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Chun, HJ, Lee, SW & Daniel, IM 1999, ANALYSIS OF NONLINEAR FLEXURAL BEHAVIOR OF THICK COMPOSITES WITH FIBER WAVINESS. in Thick Composites for Load Bearing Structures. ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE), vol. 1999-AF, American Society of Mechanical Engineers (ASME), pp. 9-20, ASME 1999 International Mechanical Engineering Congress and Exposition, IMECE 1999, Nashville, United States, 99/11/14. https://doi.org/10.1115/IMECE1999-0899

ANALYSIS OF NONLINEAR FLEXURAL BEHAVIOR OF THICK COMPOSITES WITH FIBER WAVINESS. / Chun, H. J.; Lee, S. W.; Daniel, I. M.

Thick Composites for Load Bearing Structures. American Society of Mechanical Engineers (ASME), 1999. p. 9-20 (ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE); Vol. 1999-AF).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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ANALYSIS OF NONLINEAR FLEXURAL BEHAVIOR OF THICK COMPOSITES WITH FIBER WAVINESS

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