engleski

Analysis of the Mechanical Properties of Woven Fabrics from Glass and Basalt Yarns

Among many other materials for the reinforcement of composites, technical fabrics are increasingly being used for the same purpose, especially from glass and basalt tows, which have good mechanical properties.. During tensile stress these fabrics are elongated in the direction of tensile force, and at the same time they contract crosswise in relation to the action of tensile force. In this paper tensile properties of woven fabrics made from glass and basalt yarns, were investigated. The measurements were focused on the lateral contraction, according to which Poisson's ratio can be calculated. For these purposes, an innovative device as an upgrade of the strength tester and samples of fabrics of non-standard shapes (cross and square) were used. Mechanical properties of the yarns from which the fabrics were made were analyzed before and after weaving in order to define the impact of weaving on them.

glass fabrics; basalt fabrics; physical mechanical properties; Poisson's ratio; lateral preload; lateral contraction

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