Moisture Diffusion Characterization of Carbon Fiber Based Polymeric Composites Under Recurrent Hygrothermal Ageing

Abstract:

In this article moisture diffusion characterization of carbon fiber based polymeric composites (5428/CCF300 and 5405/CCF300) under recurrent hygrothermal ageingis investigated experimentally and numerically. Diffusion kinetics is studied by using Fickian and Langmuir diffusion models. Composite interface surfaces were closely studied by electron microscopy during the absorption/ desorption process, which revealed that micro-crack near weak interface provide passages for water diffuse.To simulate harsh service environment, understudied specimens were go through high humidity and high temperature (85°C and 120°C) conditions and then interlaminar shear strength (ILSS) properties of composites were determined. This study found that the interface property has effect on absorption/ desorption behaviour as well on ILSS. Validation of experimental results is carried out by using finite element analysis. In sum, this research attempts to analyze the behavior of carbon fiber composites underre current hygrothermal environment for the purposes oflong-term service prediction.

• Periodical: Applied Mechanics and Materials (Volume 390)
• Pages: 531-536
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.390.531
• Online since: August 2013
• Authors: Imran Shaban Bhatti, Zhao Yan
• Keywords: Carbon Fiber (CF), Diffusion Kinetics, Finite Element Modeling (FEM), Hygrothermal Ageing

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