期刊
POLYMER TESTING
卷 61, 期 -, 页码 396-403出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.polymertesting.2017.06.001
关键词
Kevlar; Basalt; In-plane shear; 3D composites; Hybrid composites
This paper investigates the characterization of in-plane shear properties of thermoplastic composites reinforced with Kevlar/basalt fabrics. Different fabrics had architectures of two dimensional plain woven (2D-P) and three dimensional angle-interlock (3D-A). Intralayer hybridization was performed during the weaving of the fabrics with the combination of Kevlar and basalt yarns. Five 2D-P and three 3D-A composite laminates were manufactured with polypropylene (PP) as a matrix, using compression molding. Iosipescu shear tests were carried out to evaluate the in-plane shear properties. The experimental results revealed that the shear properties including shear modulus, shear strength and shear failure strain of homogeneous composites were improved by 6.5-14.9%, 4.3-19.7%, and 3.2-46.7%, respectively. Similarly, change in the fabric architecture from 2D-P to 3D-A also enhanced the shear strength and shear failure strain by 32.0-41.6% and 7.2-22.5%, respectively. Intralayer hybrid composites had better in-plane shear properties than the interlayer hybrid composites. The fracture morphologies of the specimens were examined by scanning electron microscopy (SEM). (C) 2017 Elsevier Ltd. All rights reserved.
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