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Structural Engineering and Mechanics
  Volume 4, Number 4, July 1996 , pages 347-364
DOI: https://doi.org/10.12989/sem.1996.4.4.347
 


Linear fracture envelopes for fatigue assessment of welds in bridges
Ghosh A, Oehlers DJ, Wahab MA

 
Abstract
    Presently welded components are designed using S/N curves which predict only the fatigue life of the component. In order to ascertain the condition of the weld at any intermediate period of its life inspection is carried out. If cracks are detected in a weld fracture mechanics is used to find their remaining life. A procedure for assessment is developed here that can be used to verify the condition of a weld before inspection is carried out to detect cracks. This simple method has been developed using linear,fracture envelopes by combining S/N curves with linear elastic fracture mechanics.
 
Key Words
    assessment, bridges, fatigue, fracture mechanics, residual strength, welded component
 
Address
Ghosh A, UNIV ADELAIDE,DEPT CIVIL & ENVIRONM ENGN,ADELAIDE,SA 5005,AUSTRALIA
UNIV ADELAIDE,DEPT MECH ENGN,ADELAIDE,SA 5005,AUSTRALIA
 

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