A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Low cycle fatigue behavior of constraint connections
Abstract The general influence of constraint effects on reversed low-cycle fatigue performance was investigated. Constraint effects are being considered to have contributed to the failure of welded Steel Moment Resisting Frames (SMRFs), were cracks initiated in constraint regions during recent earthquakes. However, this study revealed that high constraint enhanced the resistance to crack initiation during cyclic loading by reducing the local strains at the notch tip. Furthermore, changes in toughness due to various constraint severities had almost no influence on the low cyclic performance of steel under constraint. This applies to low and high stress levels as well as low and high constraint, covering the whole range of possible scenarios of low-cycle and even towards high-cycle fatigue. While high toughness is still important for enhancing the fracture strength to accommodate the maximum imposed stresses/strains in earthquake loading, it most likely does not play a key role in cyclic performance.
Low cycle fatigue behavior of constraint connections
Abstract The general influence of constraint effects on reversed low-cycle fatigue performance was investigated. Constraint effects are being considered to have contributed to the failure of welded Steel Moment Resisting Frames (SMRFs), were cracks initiated in constraint regions during recent earthquakes. However, this study revealed that high constraint enhanced the resistance to crack initiation during cyclic loading by reducing the local strains at the notch tip. Furthermore, changes in toughness due to various constraint severities had almost no influence on the low cyclic performance of steel under constraint. This applies to low and high stress levels as well as low and high constraint, covering the whole range of possible scenarios of low-cycle and even towards high-cycle fatigue. While high toughness is still important for enhancing the fracture strength to accommodate the maximum imposed stresses/strains in earthquake loading, it most likely does not play a key role in cyclic performance.
Low cycle fatigue behavior of constraint connections
Rosien, F. J. (author) / Ostertag, C. P. (author)
2008
Article (Journal)
Electronic Resource
English
Low cycle fatigue behavior of constraint connections
| British Library Online Contents | 2009
Low cycle fatigue behavior of constraint connections
| Online Contents | 2008
Low cycle fatigue behavior of constraint connections
| Online Contents | 2008
Low cycle fatigue behavior of constraint connections
| Springer Verlag | 2008
Low cycle fatigue behavior of constraint connections
| Springer Verlag | 2008