University of Illinois Urbana-Champaign

Curvature effects on compressive failure strength of long fiber composite laminates

Hsia, K.J.; Huang, J.Q.

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https://hdl.handle.net/2142/112394

Description

Title
Curvature effects on compressive failure strength of long fiber composite laminates
Author(s)
  • Hsia, K.J.
  • Huang, J.Q.
Issue Date
1993-01
Keyword(s)
  • Woven Composites
  • Compressive Strength
  • Kinking
  • Delamination
Abstract
A simple model is developed to study the compressive failure strength of woven composite laminates. Two different configurations, a flat plate under in-plane compression and a thin-walled cylindrical tube under external pressure, are considered. Two micromechanisms observed in experiments, delamination of thin layers at the inner surface for the tube and formation of kinking bands for the flat plate, are used to develop the model. An energy criterion is employed to determine the failure strength of cylindrical tube. Three nondimensional parameters, related to interlayer surface energy, initial misalignment of fibers, and the delaminated layer thickness as well as the radius of curvature of the tube, are identified as governing parameters for different failure modes. The model predictions agree well with experimental results.
Publisher
Department of Theoretical and Applied Mechanics. College of Engineering. University of Illinois at Urbana-Champaign
Series/Report Name or Number
  • TAM R 707
  • 1993-6005
ISSN
0073-5264
Type of Resource
text
Language
eng
Permalink
http://hdl.handle.net/2142/112394
Sponsor(s)/Grant Number(s)
MSS 92 09309 93/01
Copyright and License Information
Copyright 1993 Board of Trustees of the University of Illinois

Owning Collections

Technical Reports - Theoretical and Applied Mechanics (TAM) PRIMARY
TAM technical reports include manuscripts intended for publication, theses judged to have general interest, notes prepared for short courses, symposia compiled from outstanding undergraduate projects, and reports prepared for research-sponsoring agencies.