Analytical model for predicting brittle failures of bolted timber joints

A theoretical model is presented to calculate the stress distribution around a pin-loaded hole in a timber joint and to predict brittle failure modes in bolted connections. The analytical solution uses the stress functions expressed in terms of complex parameters, and it can be considered an application of Lekhnitskii’s theory on stress distributions in anisotropic plates. The influence of the end distance and material properties on development of failure due to the splitting and shear-plug is shown for a dowel-type timber joint. Laboratory experiments on timber joints with 15.9-mm and 9.5-mm bolts loaded parallel to grain have shown good agreement with the model predictions.

[1]  F. L. Matthews,et al.  A Finite Element Analysis of Single and Two-Hole Bolted Joints in Fibre Reinforced Plastic , 1981 .

[2]  T. A. Collings,et al.  Bearing deflection behaviour of a loaded hole in CFRP , 1984 .

[3]  Pj Pellicane,et al.  Nonlinear material models for analysis of bolted wood connections , 1997 .

[4]  Guy Gendron,et al.  Stress and failure analysis of mechanically fastened joints in composite laminates , 2000 .

[5]  Robert J. Ross,et al.  Wood handbook : wood as an engineering material , 2010 .

[6]  Theo de Jong,et al.  Stresses Around Pin-Loaded Holes in Elastically Orthotropic or Isotropic Plates , 1977 .

[7]  A.J.M. Jorissen,et al.  DOUBLE SHEAR TIMBER CONNECTIONS WITH DOWEL TYPE FASTENERS , 1998 .

[8]  Ghyslaine McClure,et al.  Postelastic Behavior of Single- and Double-Bolt Timber Connections , 2005 .

[9]  H. A. Smith,et al.  Forest products laboratory. , 1922 .

[10]  N. Muskhelishvili.  Some basic problems of the mathematical theory of elasticity , 1953 .

[11]  Charles E.S. Ueng,et al.  Stresses around a pin loaded hole in orthotropic plates with arbitrary loading direction , 1985 .

[12]  Alexander Salenikovich,et al.  Analytical study of a pin-loaded hole in elastic orthotropic plates , 2007 .

[13]  W. J. Quinn,et al.  The Effect of Stacking Sequence on the Pin-Bearing Strength in Glass Fibre Reinforced Plastic , 1977 .

[14]  Buket Okutan,et al.  The effects of geometric parameters on the failure strength for pin-loaded multi-directional fiber-glass reinforced epoxy laminate , 2002 .

[15]  Guk-Rwang Won.  American Society for Testing and Materials , 1987 .