Abstract

An innovative means of measuring the end-forces in a softened wood specimen during a bending process has been developed, incorporating a resultant end-force sensor. The impact of end-forces on wood deformation and associated bending performance has been investigated, and a correlation was found to exist between end-force and bending performance. The technique enables the systematic control of axial compression end-forces so that bending induced wood failure, as measured by longitudinal strain at the convex edge, can be minimised. While incorporating traditional manual end-force adjustment, it is envisaged that that this technique could facilitate automation of the bending process. Friction was identified as a significant impediment to the establishment of a reliable relationship between end-force and wood strain during bending.

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