Evaluation of Micro/Meso/Macro Thermal Properties of Plain-Woven Laminates

Abstract:

In this study, thermal properties of plain-woven laminates are analyzed micro-, meso-and macroscopically based on a multiscale approach. For this, the effects of thermal expansion of constituents are incorporated into the micro/meso/macro homogenization method for plain-woven laminates developed by our research group. This method enables us to analyze thermal properties of not only fiber bundles in laminates but also fibers and matrix materials in fiber bundles, in addition to their macroscopic thermal properties. The present method is then applied to the thermal property analysis of plain-woven carbon fiber/epoxy laminates subjected to a macroscopic temperature change from 180°C to 20°C. Two types of carbon fibers, i.e. HTA and P75, are considered in the analysis. It is shown that quite high thermal residual stress can occur in fiber bundles, fibers and a matrix. It is also shown that the present method can predict the change of thermal properties of the laminates depending on the difference of fibers.

• Periodical: Key Engineering Materials (Volume 725)
• Pages: 439-444
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.725.439
• Online since: December 2016
• Authors: Yoshihiko Sato, Tetsuya Matsuda*
• Keywords: Composite, Homogenization, Multiscale, Plain-Woven Laminate, Thermal Property

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