Determination of the Bonding Strength of Finger Joints Using a New Test Specimen Geometry

In this study, a specimen geometry for testing finger joints was developed using finite element simulation and proofed by experimental testing. Six different wood species three adhesives were used finger-jointing specimens. With the test geometry, bonding strength of determined without usual self-locking joint. Under load, introduces maximum stress at beginning bond line (adhesive zone). However, does not generate symmetric state. The main difficulty here is flank angle joint geometry. significantly influenced performance joints.