Theoretical Study for Moisture Diffusion in a Carbon/Epoxy Composite Laminate Accompanied by Thermal Conduction

This work aims to develop a process to derive the dynamic distribution of moisture content in a carbon/epoxy composite laminate based on theories of thermal conduction and moisture diffusion, which are triggered simultaneously by changes of environmental temperature and humidity. The moisture conten...

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Bibliographic Details
Published in:Journal of composite materials 2010-08, Vol.44 (18), p.2233-2243
Main Authors: Chih Hsing Wang, Tsai, Cho-Liang
Format: Article
Language:English
Subjects:
Applied sciences
Carbon
Carbon-epoxy composites
Composites
Condensed matter: structure, mechanical and thermal properties
Diffusion
Diffusion in solids
Diffusivity
Exact sciences and technology
Forms of application and semi-finished materials
Humidity
Laminates
Moisture
Moisture content
Physics
Polymer industry, paints, wood
Statistical physics, thermodynamics, and nonlinear dynamical systems
Technology of polymers
Theory of diffusion and ionic conduction in solids
Transport processes
Transport properties of condensed matter (nonelectronic)
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Summary:This work aims to develop a process to derive the dynamic distribution of moisture content in a carbon/epoxy composite laminate based on theories of thermal conduction and moisture diffusion, which are triggered simultaneously by changes of environmental temperature and humidity. The moisture content in a composite laminate is low and assumed not to affect the thermometric conductivity. However, the local material temperature directly affects the moisture diffusivity, which dominates moisture diffusion. The moisture content derived by the proposed process differs negligibly from that obtained by neglecting the process of thermal conduction in the studied case.
ISSN:0021-9983
1530-793X
DOI:10.1177/0021998310364261