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INVESTIGATIONS INTO THE MECHANICS OF CRACK ARREST IN LARGE PLATES OF 1.5%Ni TMCP STEEL
Author(s) -
Wiesner C. S.,
Hayes B.,
Smith S. D.,
Willoughby A. A.
Publication year - 1994
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/j.1460-2695.1994.tb00802.x
Subject(s) - materials science , tension (geology) , fracture mechanics , crack growth resistance curve , stress intensity factor , fracture toughness , crack closure , composite material , structural engineering , toughness , crack tip opening displacement , metallurgy , mechanics , engineering , ultimate tensile strength , physics
— Large scale, structurally representative, double tension crack arrest tests have been undertaken at temperatures between −99°C and −87°C. Applied stresses and the length of the embrittled crack starter sections were varied to give different applied stress intensity factors in the tests. The results indicate that crack arrest in structures is not governed solely by a so‐called crack arrest temperature but that static linear elastic fracture mechanics can be used to describe it. The measured crack arrest toughness temperature curve of the 1.5%Ni TMCP steel investigated lies at the lower bound of published data.