A moisture diffusion coupled model for composite materials

Moisture Diffusion Analysis for Composite Microdamage

Moisture Diffusion Properties of Fabric Composite (Glass Fiber/Epoxy Resin)

In this study, the effect of hygrothermal conditioning on the moisture diffusion properties of the fabric composite (glass fiber/epoxy resin) was investigated. The water uptake of the specimens conditioned in humid environment at different relative humidities (0, 60 and 96 % r.h) at constant temperature (60°C) was evaluated by weight gain measurements. The moisture diffusion properties of the f...

Moisture Diffusion Analysis of Composite Strength Degradation

Moisture diffusion analysis (MDA) has been developed as a new non-destructive evaluation methodology to monitor the strength degradation of graphite-epoxy composite materials. Studies of composite strength degradation due to high moisture identify reversible strength loss due to current moisture content and irreversible strength loss related to prior moisture exposure with microstructure damage...

Moisture Diffusion in Cementitious Materials Adsorption Isotherms

This article describes an improvement on a previous model proposed by Ba~ant and Najjar, in which moisture diffusivity and moisture capacity are treated as separate parameters. These parameters are evaluated from independent test results, and are shown to depend on the water:cement ratio, curing time, temperature, and cement type. The moisture capacity is obtained as the slope of the adsorption...

A Molecular Dynamics-Continuum Coupled Model for Heat Transfer in Composite Materials

The heat transfer problem in composite materials has been investigated which contains the nano-scale interface. A molecular dynamics-continuum coupled model is developed to study the heat transport from the macroto the micro-scales. The model includes four major parts: (1) A reverse non-equilibrium molecular dynamics (RNEMD) is used to calculate the physical parameters such as the thermal condu...