Advanced Composite Materials

The Korean Society for Composite Materials (한국복합재료학회)
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Wet to Shrink: an Approach to Realize Negative Expansion upon Wetting

  • Sun, L. (School of Civil Engineering, Shenyang Jianzhu University) ;
  • Huang, W.M. (School of Mechanical and Aerospace Engineering, Nanyang Technological University)
  • Received : 2007.12.26
  • Accepted : 2008.03.28
  • Published : 2009.06.01
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Abstract

Composites can be designed to have special properties, and even such properties that are difficult to find in nature. We propose a simple approach to realize negative expansion upon wetting, i.e., contraction upon wetting, using swelling materials. The key parameters in one-dimensional case are investigated, and the possible configurations for two and three-dimensional cases are presented. The feasibility is demonstrated through a simple test.

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