Ductile Tearing Analysis in Overmatched Welded Joints

• Autorzy: Imad A.
• Konferencja: French-Polish Seminar on Mechanics ; 14. ; International Conference on Modelling and Simulation of the Friction Phenomena in the Physical and Technical Systems "FRICTION 2006" ; 4. (5.06.2006 ; Warsaw, Poland)
• Języki publikacji: EN

Abstrakty

EN

Numerical analysis has been carried out to evaluate the ductile fracture in an overmatched welded joints case using a standard CT specimen. These investigations have been performed by analysing the monometallic, bimetallic and trimetallic configurations in order to compare global approaches (i.e. the J integral and CTOD) with a local approach (Rice and Tracey model). The different cases lead to a globally similar evolution of CTOD and of the J integral. These two parameters are not really affected when changing the configuration while the void growth ratio (R/Ro) is very sensitive to the strain and strain fields around the crack tip. Furthermore, according to the parameter (R/Ro) distribution at the crack tip, it seems possible to predict the crack propagation direction in the overmatched welded joints case.

Słowa kluczowe

EN

ductile tearing; overmatched welds; J integral; void ratio

PL

mechanika; pękanie; plastyczność; spoina

• Wydawca: Oficyna Wydawnicza Politechniki Warszawskiej
• Czasopismo: Machine Dynamics Problems
• Rocznik: 2006
• Tom: Vol. 30, No. 2
• Strony: 40--53
• Opis fizyczny: Bibliogr. 19 poz., wykr.

Twórcy

autor

Imad A.

• Universite des Sciences et Technologies de Lille, Laboratoire de Mecanique de Lille,

Bibliografia

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