Journal of Adhesion Science and Technology, Vol.25, No.20, 2881-2895, 2011
Measurement of Mode I and Mode II Fracture Properties of Wood-Bonded Joints
In this work, the fracture characterisation of wood-bonded joints under pure model and mode II loading was performed. The tested material was maritime pine (Pinus pinaster Ait.) bonded with an epoxy adhesive. Two fracture mechanical tests were chosen: the double cantilever beam (DCB) for opening mode I loading, and the end-notched flexure (ENF) for sliding mode II loading. The compliance-based beam method (CBBM) was used for both mode I and mode II fracture, since the Resistance-curves can be obtained directly from the global mechanical response of the specimens (load displacement curve), without crack monitoring during propagation. This data reduction scheme was validated by direct comparison with the modified experimental compliance method (MECM). (C) Koninklijke Brill NV, Leiden, 2011
Keywords:Fracture mechanics;wood-bonded joints;compliance-based beam method;modified experimental compliance method;double cantilever beam (DCB) test;end-notched flexure (ENF) test