Manufacturing and flexural testing of woven lattice sandwich-ply laminate composites

In this research, single-layered, double-layered and three-layered woven lattice sandwich-ply (WLS) composites were designed and manufactured. Bending experiments were performed on the clamped and simply-supported WLS panels. The effects of multi-layered construction and boundary constraints on flex...

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Bibliographic Details
Published in:Composite structures 2023-11, Vol.323, p.117440, Article 117440
Main Authors: Wang, Ben, Yan, Qu, Bai, Cuiping, Yang, Yunze, Fan, Hualin
Format: Article
Language:English
Subjects:
Mechanical properties
Mechanical testing
Sandwich structures
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Summary:In this research, single-layered, double-layered and three-layered woven lattice sandwich-ply (WLS) composites were designed and manufactured. Bending experiments were performed on the clamped and simply-supported WLS panels. The effects of multi-layered construction and boundary constraints on flexural behaviors were investigated. Typical damage modes of core fracture, face shear fracture and bending fracture of the panels with four constrained ends, and those of core shear, compression, fracture and face fracture of the panels with two constrained ends were revealed. It is clear that the multi-layered construction can significantly improve the strength, stiffness, and energy absorption. Boundary constraint affects the deformation characteristics, but it will be suppressed as core shear stiffness increases.
ISSN:0263-8223
1879-1085
DOI:10.1016/j.compstruct.2023.117440