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Notch stress analyses of high‐frequency mechanical impact‐improved welds by using ρ f = 1 mm and ρ f = ρ + 1 mm approaches
Author(s) -
Yildirim H. C.,
Marquis G. B.
Publication year - 2014
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.12139
Subject(s) - welding , radius , structural engineering , finite element method , point (geometry) , stress (linguistics) , materials science , engineering , geometry , mathematics , composite material , computer science , linguistics , philosophy , computer security
This paper presents further assessments of the previously reported round‐robin fatigue data obtained from high‐frequency mechanical impact (HFMI)‐improved longitudinal welds. A detailed statistical analyses of geometry measurements of HFMI‐treated weld toe profiles are presented. The fatigue analyses based on notch stress as defined by the International Institute of Welding are performed using the finite element method. Notch stresses are assessed based on both the fictitious weld toe radius and the addition of measured actual notch radius to the fictitious radius. While no large differences are observed between the results of methods, the former one is found to be more practical and faster to implement from the end‐user point of view.