Hostname: page-component-586b7cd67f-r5fsc Total loading time: 0 Render date: 2024-11-29T16:05:42.505Z Has data issue: false hasContentIssue false
  • English
  • Français

Master Curve of Creep in Polymeric Off-Axis Composite Laminates

Published online by Cambridge University Press:  05 May 2011

H-W. Hu
H-W. Hu*
Affiliation:
Composite Materials and Structures Laboratory, Department of Vehicle Engineering, National Pingtung University of Science and Technology, Neipu, Pingtung, Taiwan 91201, R.O.C.
*
*Associate Professor
Get access

Abstract

An approach to establish a master curve for effective creep compliances of polymeric off-axis composites with various fiber orientations was presented. Carbon/epoxy composite IM7/977–3 was used to fabricate four types of off-axis specimens and then subjected to momentary creep tests after a period of initial aging. Creep compliance and elastic compliance were separated from the total compliance. Using one-parameter creep potential theory, creep compliances were transformed to effective creep compliances. After choosing a proper value for the one-parameter, all effective creep compliances with various off-axis fiber orientations were superposed into a master curve. This master curve enables us to obtain creep compliance with any off-axis fiber orientation by testing only one off-axis specimen.

Keywords

Polymeric off-axis compositesCreepPhysical agingOne-parameter creep potentialMaster curve
Type
Articles
Information
Journal of Mechanics , Volume 22 , Issue 3 , September 2006 , pp. 229 - 234
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2006

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1.Lou, Y. C. and Schapery, R. A., “Viscoelastic Characterization of a Nonlinear Fiber-Reinforced Plastics,” J. Compos. Mater., 5, pp. 208–234 (1971).CrossRefGoogle Scholar
2.Flaggs, D. L. and Crossman, F. W., “Analysis of the Viscoelastic Response of Composite Laminates During Hygrothermal Exposure,” J. Compos. Mater., 15, pp. 21–40 (1981).CrossRefGoogle Scholar
3.Lilholt, H., “Models for Creep of Fibrous Composite Materials,” Materials Forum, 11, pp. 133–139(1988).Google Scholar
4.Chung, I. and Sun, C. T., “Modeling Creep in Thermoplastic Composites,” J. Compos. Mater., 27, pp. 1009–1029 (1993).CrossRefGoogle Scholar
5.Struik, L.C.E., Physical Aging in Amorphous Polymers and Other Materials, Elsevier Scientific Pubilshing Company (1978).Google Scholar
6.Sullivan, J. L., “Creep and Physical Aging of Composites,” Compos. Sci. Technol., 39, pp. 207–232 (1990).CrossRefGoogle Scholar
7.Sullivan, J. L., Blais, E. J. and Houston, D., “Physical Aging in the Creep Behavior of Thermosetting and Thermoplastic Composites.” Compos. Sci. Technol., 47, pp. 389–403 (1993).CrossRefGoogle Scholar
8.Hastie, R. L. J. and Morris, D. H.”The Effects of Physical Aging on Creep Response of a Thermoplastic Composite,” High Temperature and Environmental Effects on Polymeric Composites, ASTM STP 1174, pp. 163–185 (1993).CrossRefGoogle Scholar
9.Wang, J. Z., Parvatareddy, H., Chang, T., Iyengar, N., Dillard, D. A. and Reifsnider, K. L., “Physical Aging Behavior of High-Performance Composites,” Compos. Sci. Technol., 54, pp. 405–415 (1995).CrossRefGoogle Scholar
10.Brinson, L. C. and Gates, T. S., “Effects of Physical Aging on Long Term Creep of Polymers and Polymer Matrix Composites,” J. Solid Struct., 32, pp. 827–846 (1995).CrossRefGoogle Scholar
11.Gates, T. S. and Feldman, M., “Effects of Physical Aging at Elevated Temperatures on the Viscoelastic Creep of IM7/K3B,” Compos. Mater.: Testing and Design, ASTM STP 1274, pp. 7–36(1996).Google Scholar
12.Gates, T. S. and Feldman, M., “Time-Dependent Behavior of a Graphite/Thermoplastic Composite and the Effect of Stress and Physical Aging,” J. Compos. Technol. Research, 17, pp. 33–42 (1995).Google Scholar
13.Hu, H. and Sun, C. T., “The Characterization of Physical Aging in Polymeric Composites,” Compos. Sci. Technol. 60, pp. 2693–2698 (2000).CrossRefGoogle Scholar
14.Sun, C. T. and Chen, J. L., “A Simply Flow Rule for Characterizing Nonlinear Behavior of Fiber Composites,” J. Compo. Mater., 23, pp. 1009–1020 (1989).CrossRefGoogle Scholar