The Bending Moment Resistance of Corner Joints Reinforced with Glass Fiber Polymer

Abstract

Aim of study: This study aimed to determine the effects of glass fiber reinforced polymer (GFRP) and adhesives type on the diagonal compression and tensile strength in L-type corner joints connected by a wood biscuit. Material and Methods: Medium density fiberboard coated with melamine plate (MDFlam), wood biscuit with a size number of 20 (dimension: 56 × 23 × 4 mm) as the joining member, GFRP for strengthening purposes, and polyvinyl acetate (PVAc-D4), polyurethane (PU-D4), and epoxy glues as adhesives were used. The diagonal compression and tension tests were carried out under static load according to ASTM-D1037 standards. Main results: Results indicated that using GFRP significantly increased the diagonal compression and tensile strength of L-type corner joints connected by a wood biscuit. Highlights: It is recommended to use the combination of GFRP and epoxy adhesive in the corner joints to have better compression and tensile strength in furniture.