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Numerical Analysis and Experimental Measurement of Hygroscopic Warping Effects for Cellulose Fibres  

Kim, Byeong-Sam (Department of Mechanical, Hoseo University)
Kim, Ki-Jun (Department of Mechanical, Hoseo University)
Publication Information
Journal of the Korean Society of Safety / v.19, no.1, 2004 , pp. 117-123 More about this Journal
Abstract
The prediction to the hydroscopic moisture warping behaviors is analyzed for cellulose-based laminates using a numerical method base on a modified classical laminate(MCL) theory for hygroscopic moisture deformations with cycling testing data. The experimental measurement of the interferometric hygroscopic warping effects, moisture generator, and curvature of cellulose reinforced epoxy laminates is studied under cyclic environmental conditions using a Moire interferometer coupled. Accurate determination of curvatures provides a description of dimensional stability evolution; the tools for validation of computational internal stress and for the warpage prediction in model safety.
Keywords
hygroscopic moisture; cellulose-based laminates; numerical method;
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