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Notch mechanics assessment of fatigue strength reduction in butt welds with defects
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DOI：10.1016/j.ijfatigue.2026.109900.png)
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Abstract
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• The existing fatigue strength assessment of butt joints with defects provides stepwise predictions. • Fracture and Notch Mechanics is a comprehensive framework of the geometrical effect of irregularities • A numerical effective stress assessment of defected geometries allows a parametric investigation. • LEFM and simulations allowed a new continuous model for fatigue strength of butt joints with irregularities.
Keywords:
Butt weld
Defects
Notch mechanics
Fatigue strength
Implicit gradient method
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