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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Donato, Gustavo Henrique Bolognesi
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2018Validity limits of the one-parameter elastic-plastic fracture mechanics (J-integral) considering SE(B), C(T) and clamped SE(T) specimenscitations
- 2018Ductile fracture of advanced pipeline steels: study of stress states and energies in dynamic impact specimens - CVN and DWTTcitations
- 2018Texture Analysis for Crack Detection in Fracture Mechanicscitations
- 2018Effects of manufacturing plastic prestrains found on calendered and UOE pipes and pressure vessels on structural integrity assessments regarding fatigue crack growth and LBBcitations
- 2016Reverse strain-induced martensitic transformation of the ferrite to austenite in duplex stainless steelscitations
- 2015Influence of loading frequency on the fatigue behaviour of coir fibre reinforced PP compositecitations
- 2014Applicability of Precracked Charpy Specimens for Determining Fatigue Crack Growth and J-R Properties: Experiments and Assessment of K and J Dominance
- 2012Effects of Plastic Deformation on Fatigue Life of Superduplex Steel Tube Umbilicalcitations
- 2012Applicability of SE(T) and SE(B) Fracture Specimens in Crack Growth Measurements of Pipeline Girth Weldscitations
- 2011Fatigue Life Estimation of Welded Joints Including the Effects of Crack Closure Phenomenacitations
- 2009Effects of Weld Strength Mismatch on Estimation Procedures for J Fracture Parameter Using Clamped SE(T) Specimens
- 2009Effects of weld strength mismatch on J and CTOD estimation procedure for SE(B) specimenscitations
- 2008A FAD-Based Procedure for Defect Assessments of Welded Structures Including Effects of Weld Strength Mismatch: Micromechanics Approach and Application to Pipeline Girth Welds
- 2007Effects of Weld Strength Mismatch on Estimation Procedures for J and CTOD Fracture Parameters Using SE(B) Specimenscitations
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document
Fatigue Life Estimation of Welded Joints Including the Effects of Crack Closure Phenomena
Abstract
The integrity of mechanical components, particularly when they experience considerable fatigue damage during its operating life, can be strongly influenced by the presence of residual stress fields and mechanical heterogeneity. Premature closure of crack flanks greatly influences fatigue crack growth rate. Extensive elastic-plastic finite element analyses have been carried out to investigate detailed crack closure behavior in center cracked welded compact tension (CT) specimens with one level of weld strength mismatch. The finite element results show that homogeneous, soft material has higher crack opening loads than heterogeneous material with 50% overmatch conditions. Fracture testing conducted on C(T) specimens to measure fatigue crack growth rates for an ASTM A516 Gr. 70 steel weldment provide the experimental data to support such behavior. The fatigue life can be reduced by more than 100% for a condition of 50% overmatch when compared with the evenmatch condition. It was verified that most of time spent in fatigue propagation life is consumed at the beginning of the propagation life.Copyright © 2011 by ASME