Dimensional stability of CFRP in humidity environment

Yoshihiko Arao, Jun Koyanagi, Hatta Hiroshi, Hiroyuki Kawada, Yuichiro Aoki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In order to quantify the dimensional stability in CFRPs, the water diffusion considering an anisotropy and moisture expansion behavior are investigated. Water diffusivity coefficients were determined by measuring the specimen weight during the moisture absorption test. The diffusivity coefficients of three main axial directions are obtained from three shape specimen's result and solving simultaneous equations. A 3-dimensional locator using laser-displacement measurement was employed to measure micro deformation of the CFRP specimens. The curvature of surface was observed due to the distribution of moisture contents. The coupling analysis, which includes mechanical deformation and thermal diffusion, was conducted. The numerical results are in good agreement with the test results.

Original languageEnglish
Title of host publicationProceedings of the SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007
Pages365-371
Number of pages7
Publication statusPublished - 19 Nov 2007
EventSEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007 - Springfield, MA, United States
Duration: 3 Jun 20076 Jun 2007

Publication series

NameProceedings of the SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007
Volume1

Conference

ConferenceSEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007
CountryUnited States
CitySpringfield, MA
Period3/06/076/06/07

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Arao, Y., Koyanagi, J., Hiroshi, H., Kawada, H., & Aoki, Y. (2007). Dimensional stability of CFRP in humidity environment. In Proceedings of the SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007 (pp. 365-371). (Proceedings of the SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007; Vol. 1).