Publication

Fatigue behaviour of CHS tubular bracings in steel bridges

Publications associées (32)

A critical examination of the size effect correction for welded steel tubular joints

Alain Nussbaumer, Luís Costa Borges, Ann Schumacher

Welded circular hollow section (CHS) joints typical to bridge construction have been examined in an experimental, numerical, and analytical study with respect to their fatigue strength. Evidence from this study has indicated lower fatigue strength for join ...

2009

Reinforced concrete bridges under increased railway traffic loads

Andrin Herwig

The aim of this thesis is to provide rational engineering methods for the fatigue safety examination of existing railway bridges. Increasing railway traffic loading and enhanced structural analysis allow for higher exploitation of the capacity of bridge el ...

EPFL2008

Size effects in the fatigue behaviour of tubular bridge joints

Luís Costa Borges

A critical aspect in the design of tubular bridges is the fatigue performance of the structural joints. Economic viability depends on it. Lower fatigue strength for joints with thicker failing members was observed in welded joints typical to the bridge app ...

EPFL2008

A probabilistic assessment of the effect of post-weld treatment on the fatigue performance of tubular truss bridges

Alain Nussbaumer, Scott Walbridge

In the design of tubular truss bridges, engineers have found the fatigue performance of the joints to be a critical aspect. In looking for ways to improve this performance, the use of residual stress-based post-weld treatments has been suggested. Although ...

Elsevier2008

Fracture properties of notched and pre-cracked specimens of a tempered martensitic steel at low temperature

Philippe Spätig, Raul Alejandro Bonadé, Pablo Federico Mueller

The fracture properties of the 9CrWVTa reduced-activation tempered martensitic steel Eurofer97 were studied in the lower ductile to brittle transition. Sub-sized pre-cracked compact tension and notched tensile specimens were tested. Finite element simu ...

Elsevier2008

Fracture properties of notched and pre-cracked specimens of a tempered martensitic steel at low temperature

Philippe Spätig, Raul Alejandro Bonadé, Pablo Federico Mueller

2008

Constitutive behavior and fracture properties of tempered martensitic steels for nuclear applications

Raul Alejandro Bonadé

In this study, the tensile and fracture properties and the microstructure of the reduced-activation tempered martensitic steel Eurofer97 have been investigated. This technical alloy is a 9%Cr steel developed within the European fusion material research pro ...

EPFL2006

Crack growth induced delamination on steel members reinforced by prestressed composite patch

Alain Nussbaumer, Andrea Bassetti

Prestressed composite patch bonded on cracked steel section is a promising technique to reinforce cracked details or to prevent fatigue cracking on steel structural elements. It introduces compressive stresses that produce a crack closure effect. Moreover, ...

Wiley-Blackwell2003

Analysis of cracked steel members reinforced by pre-stressed composite patch

Alain Nussbaumer, Andrea Bassetti

Pre-stress bonded composite patch is a promising technique to reinforce steel member damaged by fatigue. ifhe effectiveness of this technique was verified by fatigue tests on notched steel plates. Results showed that the application of carbon fibre reinfor ...

Wiley-Blackwell2003

Life prediction of titanium MMCs under low-cycle fatigue

William Curtin

Low-cycle fatigue failure in titanium metal matrix composites is caused by two separate damage mechanisms: fatigue crack growth in the Ti matrix and fiber breakage. Here, a coupled numerical model for predicting both crack growth and fiber breakage is deve ...

2001

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