Residual stresses in non-symmetrical carbon-epoxy laminates

Sebastiaan Wijskamp, Remko Akkerman, E.A.D. Lamers

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

226 Downloads (Pure)

Abstract

The curvature of unsymmetrical [0/90] laminates moulded from AS4/8552 uni-directional tape has been measured. A linear thermoelastic approach has been applied to predict the related residual stress state before demoulding, giving an estimate of the stress induced by polymerisation strain. The results from the linear approach are confirmed by a viscoelastic finite element model including the cure conversion and related change in viscosity. It is concluded that the curvature measurement of unsymmetrical laminates is an accurate method for the prediction of the transverse residual stress, making it suitable as a benchmark for complex stress modelling.
Original languageUndefined
Title of host publicationProceedings of the 14th International conference on Composite Materials, ICCM14
EditorsM.J. Martin, H.T. Hahn
Place of PublicationSan Diego, USA
Pages-
Number of pages10
Publication statusPublished - 2003
Event14th International Conference on Composite Materials, ICCM-14, 2003 : Bridging the Gap Between Academia and Industry - San Diego, United States
Duration: 14 Jul 200318 Jul 2003
Conference number: 14

Conference

Conference14th International Conference on Composite Materials, ICCM-14, 2003
Abbreviated titleICCM
CountryUnited States
CitySan Diego
Period14/07/0318/07/03

Keywords

  • IR-59437
  • METIS-217355

Cite this

Wijskamp, S., Akkerman, R., & Lamers, E. A. D. (2003). Residual stresses in non-symmetrical carbon-epoxy laminates. In M. J. Martin, & H. T. Hahn (Eds.), Proceedings of the 14th International conference on Composite Materials, ICCM14 (pp. -). San Diego, USA.