The influence of fit on the distribution of glue in oval Tenon/Mortise joint

Abstract

The analysis of spatial furniture with Finite element method (FEM) provides answers to many engineering problems. One of the fields which is not wholly solved is analysis of glued joints. In order to analyze joints by FEM it is necessary to have access to data on size and type of deformation which occurs as a result of overlap type of fit as well as data on thickness of the glue layer in joint. This paper provides answers to the impact of fit on the distribution of glue in the gluing surface. Test were conducted on oval mortise and tenon joint. The thickness of the glue line was measured on 800 samples. Based on the results the overlap occurred in the majority of samples (over 80 %). Average value of the thickness of the joint zone impregnated by glue amounted to 0.07 mm.