RT Journal Article SR Electronic T1 Use of the Fractometer to Determine the Strength of Wood with Incipient Decay JF Arboriculture & Urban Forestry (AUF) JO JOA FD International Society of Arboriculture SP 105 OP 112 DO 10.48044/jauf.1995.018 VO 21 IS 3 A1 Claus G. Mattheck A1 Helge Breloer A1 Klaus A. Bethge A1 Wolfgang A. Albrecht A1 Achim W. Zipse YR 1995 UL http://auf.isa-arbor.com/content/21/3/105.abstract AB A fairly new method (Visual Tree Assessment on a biomechanical basis, VTA) and a handy tool for measuring wood quality in terms of strength and stiffness (the Fractometer) are presented together with a new mechanically equivalent model for wood. The paper gives help in interpreting the results gained by Fractometer measurements.