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Auxetic composites made of 3D textile structure and polyurethane foam (Phys. Status Solidi B 7/2016)
Author(s) -
Zhou Lin,
Jiang Lili,
Hu Hong
Publication year - 2016
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201670544
Subject(s) - auxetics , materials science , composite material , crimp , compression (physics) , polyurethane , stacking , textile , fabric structure , physics , nuclear magnetic resonance
Auxetic composites, i.e., materials with negative Poisson's ratio, have attracted considerable attention in recent years due to their wonderful properties compared to conventional non‐auxetic composites. Auxetic composites can be fabricated through specific stacking sequences of non‐auxetic fibers in laminated composites, or directly by using auxetic reinforcements or matrix or both. Zhou, Jiang and Hu (pp. 1331–1341 ) fabricated a special type of three‐dimensional (3D) auxetic composites by using a 3D auxetic textile structure as reinforcement and compressible polyurethane foam as matrix. The 3D auxetic textile structure is modified from a 3D orthogonal woven structure by regularly eliminating reinforcing yarns in one fabric direction. Due to the void spaces created from the elimination of warp yarns, weft yarns will crimp under compression, resulting in shrinking of the structure. As a result, auxetic effect is achieved. The composites fabricated are subjected to quasi‐static compression test. Their auxetic effect and the behavior under compression are analyzed and compared with those of non‐auxetic composites made with the same materials and structural parameters but with different warp yarn arrangement in the textile structure. The relevant experimental results are reported in the article.