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Official Journal of the Japan Wood Research Society

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Quasi-non-linear fracture mechanics analysis of the splitting failure of single dowel joints loaded perpendicular to grain

Abstract

A quasi-non-linear fracture mechanics model based on beam on elastic foundation theory is applied for analysis of dowel joints with a single dowel loaded perpendicular to grain. The properties of the elastic foundation are chosen so that the perpendicular-to-grain tensile strength and fracture energy properties of the wood are correctly represented. It is shown that this particular choice of foundation stiffness makes a conventional maximum stress failure criterion lead to the same solution as the compliance method of fracture mechanics. Results of linear elastic fracture mechanics are obtained as a special case by assuming an infinitely large value of the foundation stiffness. Results of tests on so-called plate joints are compared with theoretical predictions, showing good agreement for variations in initial crack length as well as edge distance.

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Correspondence to Jørgen Lauritzen Jensen.

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Jensen, J. Quasi-non-linear fracture mechanics analysis of the splitting failure of single dowel joints loaded perpendicular to grain. J Wood Sci 51, 559–565 (2005). https://doi.org/10.1007/s10086-005-0699-6

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