Effects of Fiber Volume on Modal Response of Through-Thickness Angle Interlock Textile Composites


Prior static studies of three-dimensionally woven carbon/epoxy textile composites show that large interlaminar normal and shear strains occur as a result of layer waviness under static compression loading. This study addresses the dynamic response of 3D through-thickness angle interlock textile composites, and how interaction between different layer waviness influences the modal frequencies. The samples have common as-woven textile architecture, but they are cured at varying compaction pressures to achieve varying levels of fiber volume and fiber architecture distortion. Samples produced have varying final cured laminate thickness, which allows observations on the influence of increased fiber volume (generally believed to improve mechanical performance) weighed against the increased fiber distortion (generally believed to decrease mechanical performance). The results obtained from this study show that no added damping was developed in the as-woven identical panels. Furthermore, a linear relation exists between modal frequency and thickness (fiber volume).

Share and Cite:

M. Villa, R. Hale and M. Ewing, "Effects of Fiber Volume on Modal Response of Through-Thickness Angle Interlock Textile Composites," Open Journal of Composite Materials, Vol. 4 No. 1, 2014, pp. 40-46. doi: 10.4236/ojcm.2014.41005.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] R. M. Jones, “Mechanics of Composite Materials,” Taylor & Francis, Philadelphia, 1975.
[2] J. Goering, Albany International Techniweave, Inc.
[3] W. Soedel, “Vibration of Shells and Plates,” Marcel Dekker, New York, 1993.

Copyright © 2024 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.