Strength properties of corner joints and extending joints on honeycomb boards

Strength properties of corner joints and extending joints on honeycomb boards. This article deals with strength characteristics of furniture joints, which are made of honeycomb boards. We were determining load carrying capacity, deformation and stiffness of three-types corner joints, which loaded stress and tension by moment in angular plane, and two-types extending joints in the plane of the board by static four-point bending load. For corner joints we used furniture fittings VB 36 HT 50, VB INSERT 50, TAB 20 HC and for extending joints that we used fittings AVB HT a QUICK. The results of experiments and calculations are compared with classical joints which are made of wood-based materials. Strength properties of joints which are made of honeycomb boards are lower than average values of classical joints. Furniture joints which used fittings AVB HT and QUICK reached above the average load carrying capacity on the load by stress and furniture joint TAB 20 HC on the load by tension.