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The thermoelastic response to deformation of carbon fibre/epoxy resin composite laminates has been considered theoretically and compared with experimental results. It is found that the surface temperature is strongly dependent on the near-surface lay-up. The total thermal response to tensile testing to failure is also reported. The results indicate that a simple but accurate estimation of the yield strength in composites is possible by measuring the thermoelastic-plastic limit strength, and that microstructural "events" are detectable by measuring the surface temperature with sufficiently high resolution. It is anticipated that thermal response analysis will be developed into a damage assessment tool complementary to acoustic emission.

Additional information

Authors: LUCIA A C, JRC Ispra (IT);MELVIN A D, Loughborough University of Technology, Department of Physics (GB)
Bibliographic Reference: Paper presented: Introductory Workshop on Composite Materials, Trieste (IT), Oct. 28 - Nov. 8, 1991
Availability: Available from (1) as Paper EN 36514 ORA
Record Number: 199210070 / Last updated on: 1994-12-02
Original language: en
Available languages: en