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Polymers and Polymer Composites

Pullout performance of common construction fasteners from long fiber thermoplastic composites

May 1, 2015 By: Kaliberov D; Uday Vaidya Research article

Title: Pullout performance of common construction fasteners from long fiber thermoplastic composites
Page Range: p.297-304
Author(s): Kaliberov D; Uday Vaidya
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Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 23
Issue No: No.5

Abstract
The recent increase in cyclone activity in the last 20 years has pressured the construction industry to look for alternative materials for roof construction. Although plywood is a cheap material, its mechanical properties are highly dependent on moisture content. Long fibre thermoplastics are an emerging type of plastic materials that feature enhanced mechanical properties due to high aspect ratio discontinuous fibres in a tough polymer matrix. The present study focuses on comparing the pullout strength of commonplace fasteners from plywood and long fibre thermoplastic composite panels. Specimens were tested according to ASTM standards D176188 and D6117-97 for mechanical fasteners in wood and long fibre thermoplastic (LFT) composites. Common construction nails like 6D, 10D and 16D and a #8 screw were used to compare the performance in terms of withdrawal. The data showed that LFT composites had withdrawal strength on average two to three times that of plywood for all tested fasteners types. Experimental data was analytically verified by APA TT-109 guidelines. 25 Refs.

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