A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Failure analysis of timber bolted joints by fracture mechanics
Abstract This study concerns the failure of dowel-type joints in glued laminated timber under static loading. Failure of joints with a single bolt or dowel due to cracking parllel to the grain direction is considered. Results presented concern only the first mode of cracking,i.e. splitting under tension perpendicular to the grain. Fracture is analyzed by the use of linear elastic fracture mechanics concepts; the crack propagation condition is assumed to be based upon the critical energy release rate $ G_{Ic} $. A simplified average stress criterion allows predicting the onset of splitting. An experimental program was carried out on joints for different structural parameters and bolt diameters. The experimental stable crack growth allowed obtaining the load-crack length curves. Another experimental program was carried out in order to compare the fracture energy of a few CIB-type specimens with the critical energy release rate $ G_{Ic} $ being used in the crack propagation simulation. The comparison between experimental and numerical results for the simulation of fracture in joints shows that Linear Elastic Fracture Mechanics provides a good approximation of the load-bearing capacity of bolted joints and may help improve design codes.
Failure analysis of timber bolted joints by fracture mechanics
Abstract This study concerns the failure of dowel-type joints in glued laminated timber under static loading. Failure of joints with a single bolt or dowel due to cracking parllel to the grain direction is considered. Results presented concern only the first mode of cracking,i.e. splitting under tension perpendicular to the grain. Fracture is analyzed by the use of linear elastic fracture mechanics concepts; the crack propagation condition is assumed to be based upon the critical energy release rate $ G_{Ic} $. A simplified average stress criterion allows predicting the onset of splitting. An experimental program was carried out on joints for different structural parameters and bolt diameters. The experimental stable crack growth allowed obtaining the load-crack length curves. Another experimental program was carried out in order to compare the fracture energy of a few CIB-type specimens with the critical energy release rate $ G_{Ic} $ being used in the crack propagation simulation. The comparison between experimental and numerical results for the simulation of fracture in joints shows that Linear Elastic Fracture Mechanics provides a good approximation of the load-bearing capacity of bolted joints and may help improve design codes.
Failure analysis of timber bolted joints by fracture mechanics
Daudeville, L. (author) / Yasumura, M. (author)
1996
Article (Journal)
English
FAILURE ANALYSIS OF TIMBER BOLTED JOINTS BY FRACTURE MECHANICS
| Online Contents | 1996
Failure Analysis of Timber Bolted Joints by Fracture Mechanics
| British Library Online Contents | 1996
Failure analysis of timber bolted joints by fracture mechanics
| Springer Verlag | 1996
Fracture Analysis of Bolted Timber Connections
| British Library Conference Proceedings | 1994
Round Timber Bolted Joints Reinforcement Methods
| British Library Conference Proceedings | 2014