Analysis of Longitudinal Timber Beam Joints Loaded with Simple Bending

Limit analysis discussion of design methods for fracture of timber dowel joints loaded perpendicular to grain

Bolted Timber Joints with Self-tapping Screws

The use of self-tapping screws with continuous threads in the joint area as a reinforcement to avoid splitting of timber members is studied. A theoretical model is developed to calculate the stress distribution around a pin-loaded hole in a timber joint, to predict brittle failure modes in bolted connections and to calculate the load in the reinforcing screws. Laboratory experiments on reinforc...

Withdrawal, shear, and bending moment capacities of round mortise and tenon timber framing joints

Many forest stands in this country as well as in numerous underdeveloped countries, are overstocked with small-diameter trees (Wolfe 2000, Wolfe and Moseley 2000). These trees pose both a health hazard and a fire hazard to the forests, and excess stems should be removed, but presently they have too little market value to justify their removal. Before these stems are utilized, value-added produc...

Coupled Bending-Longitudinal Vibration of Three Layer Sandwich Beam using Exact Dynamic Stiffness Matrix

A Newtonian (vectorial) approach is used to develop the governing differential equations of motion for a three layer sandwich beam in which the uniform distribution of mass and stiffness is dealt with exactly. The model allows for each layer of material to be of unequal thickness and the effects of coupled bending and longitudinal motion are accounted for. This results in an eighth order ordina...

Degree of Bending in Axially Loaded Tubular KT-Joints of Offshore Structures: Parametric Study and Formulation

The fatigue life of tubular joints commonly found in offshore industry is not only dependent on the value of hot-spot stress (HSS), but is also significantly influenced by the through-thethickness stress distribution characterized by the degree of bending (DoB). The determination of DoB values in a tubular joint is essential for improving the accuracy of fatigue life estimation using the stress...