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Fatigue crack growth assessments in welded components including crack closure effects: Experiments and 3-D numerical modeling
(Kidlington, 2014-02-04)
This work provides a numerical and experimental investigation of fatigue crack growth behavior in steel
weldments including crack closure effects and their coupled interaction with weld strength mismatch. A
central ...
A model for fatigue crack propagation during high cycle fatigue
(Carl Hanser Verlag, 2017-01)
This paper deals with the prediction of high-cycle fatigue behaviour for four different materials (a 7075-T6 alloy, a Ti-6Al-4V alloy, JIS S10C steel and a 0.4%C steel) using Chapetti´s approach to estimate the fatigue-crack ...
Study of fatigue crack growth in al-mg-si alloys using a predictive model under positive and negative load ratios
(2014-01-01)
The study of fatigue crack growth (FCG) is aimed at residual life estimations in order to apply the damage tolerant criterion. Usual approaches are based on semi-empirical models that consider the stress intensity factor ...
Damage tolerant analysis of corner cracks in small nozzle process penetration of the CAREM-25 reactor pressure vessel
(Elsevier, 2019-12)
This paper presents a damage tolerant approach assessment of corner cracks in small nozzle process penetrations in the pressure vessel of the small modular reactor CAREM-25 subjected to mechanical and thermal shock loadings ...
The Spb method used to estimate crack extension for coiled tubings fracture toughness tests
(Pergamon-Elsevier Science Ltd, 2017-06)
Coiled tubings are widely used in oil and gas industries. Fracture toughness test of coiled tubing is a challenge. Non-standard specimen has to be used due to its geometrical difficulties, ie small thickness and diameter. ...
Analysis of fatigue crack growth and estimation of residual life of the walking beam of an oilfield pumping unit
(Pergamon-Elsevier Science Ltd, 2010-07)
An analysis of the fatigue crack growth and the corresponding residual life evaluation of the walking beam of an oilfield pumping unit are presented. Lifting lugs had been welded on the upper flange of the walking beam at ...
Load-separation method, Spb, used to estimate crack extension for J-R curves, modified for geometric variations in blunt-notched remaining ligament
(American Society Testing Materials, 2017-07)
The Spb method estimates stable crack growth in fracture mechanics precracked specimens test. It compares the load ratio between a precracked specimen that exhibits stable crack growth and a blunt-notched specimen with ...
Effects of crack tunneling and plasticity on the elastic unloading compliance technique for SE(B) - Current limitations and proposals
(2018)
© 2018 The Authors.Understanding how cracks behave in high toughness structural materials is critical for high responsibility applications. Design and fitness-for-service activities in this scenario are highly dependent ...