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Ductile tearing simulation of Battelle pipe test using simplified stress‐modified fracture strain concept
Author(s) -
Ryu H.W.,
Bae K.D.,
Kim Y.J.,
Han J.J.,
Kim J.S.,
Budden P. J.
Publication year - 2016
Publication title -
fatigue and fracture of engineering materials and structures
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 84
eISSN - 1460-2695
pISSN - 8756-758X
DOI - 10.1111/ffe.12456
Subject(s) - tearing , materials science , fracture (geology) , ductility (earth science) , displacement (psychology) , structural engineering , stress (linguistics) , composite material , ultimate tensile strength , test data , computer simulation , mechanics , engineering , creep , psychology , linguistics , philosophy , physics , software engineering , psychotherapist
In this paper, numerical ductile tearing simulation results are compared with six circumferential through‐wall and surface cracked pipes made of two materials (SA‐333 Gr. 6 and A106 Gr. B carbon steels), performed at Battelle. For simulation, a model using a simplified fracture strain model is employed, by analysing tensile data of the material. By comparing experimental J ‐R data with FE simulation results, the damage model dependent on the element size is determined based on the ductility exhaustion concept. The model is used to simulate ductile tearing behaviour of six circumferential through‐wall and surface cracked pipes. In all cases, simulated results agree well with experimental load, crack length and crack mouth opening displacement versus load line displacement data.