Sage Journals: Discover world-class research

Abstract

The present paper provides a detailed micromechanical analysis of a plain woven composite. Geometrical and finite element modelling are carried out by accounting for the complicated architecture of the composite. Detailed modelling allows one to study the stress distributions and concentrations inside the composite. Plotted results clearly show the stress concentrations in the yams and in the matrix due to the interlacing and waviness (undulation) of the fabric. The term stress variation factor is used to study the effects of various characteristics of the composite on the stress concentrations. The results help to identify failure initiation and facilitate the study of the failure mechanism of the composite.

Keywords

woven composite repeating unit element finite element modelling waviness ratio stress variation factor

Get full access to this article

View all access options for this article.

References

1. Ishikawa, T. and T. W. Chou . 1983. "One-dimensional micromechanical analysis of woven fabric composites," AIAA Journal, 21:1714-1723.

2. Ishikawa, T. and T. W. Chou . 1982. "Stiffness and strength behaviour of woven fabric composites," Journal of Materials Science, 17:3211-3220.

3. Ishikawa, T. and T. W. Chou . 1982. "Elastic behaviour of woven hybrid composites," Journal of Composite Materials, 16:2-19.

4. Glaessgen, E. H. et al., 1996. "Geometrical and finite element modelling of textile composite," Composites: Part B, 27B, pp. 43-50.

5. Blackketter, D. M. et al., 1993. "Modelling damage in a plain weave fabric-reinforced composite material," Journal of Composite Technology and Research, 15:136-142.

6. Whitcomb, J. et al., 1996. "Effect of various approximations on predicted pregressive failure in plain weave composites," Composite Structures, 34:13-20.

7. Whitcomb, J. et al., 1991. "Three-dimensional stress analysis of plain weave composite," Composite Materials: Fatigue amd Fracture, ASTM STP 1110, ed. T. K. O'Brien . American Society for Testing and Materials, pp. 417-438.

8. Ganesh, V. K. and N. K. Naik . 1996. "Failure behaviour of plain weave fabric laminates under onaxis uniaxial tensile loading: I Laminate Geometry; II-Analytical Predictions; III Effect of Fabric Geometry," Journal of Composite Materials, 30:1748-1856.

9. Feng, Z. N. "Experimental investigation and finite element modelling of thin FRP panels under high pressure," PhD thesis, Department of Civil and Environmental Engineering, University of Southampton, UK.

Study of Stress Concentrations in Woven Composites

Abstract

Keywords

Get full access to this article

References