Simulación numérica del coeficiente de concentración de tensiones en grietas de uniones soldadas a tope Numerical simulation of the stresses concentration coefficient in cracks butt welded joints

作者: Pavel Almaguer-Zaldivar

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摘要: Fatigue is one of the more complex phenomenons in failure parts under dynamic loads. In this work pursued as main objective to expose a methodology based on finite elements method for evaluation stress concentration coefficient longitudinal and traverse cracks butt welded joints. The material bases selected carry out study it steel AISI 1015 electrode E6013 Cuban manufacturing. It carried characterization mentioned defects later dimensions each defect are varied obtain relationships between them coefficient. simulations were with software CosmosWork 2008. With proposed obtained graphs equations that describe behavior different nodes crack. value correspondence sizes.

参考文章(10)
E. S. Puchi-Cabrera, R. A. Saya-Gamboa, J. G. La Barbera-Sosa, M. H. Staia, V. Ignoto-Cardinale, J. A. Berríos-Ortiz, G. Mesmacque, Vida a la fatiga de juntas soldadas del acero inoxidable AISI 316L obtenidas mediante el proceso GMAW Revista De Metalurgia. ,vol. 43, pp. 215- 227 ,(2007) , 10.3989/REVMETALM.2007.V43.I3.67
PH. P. DARCIS, H. KATSUMOTO, M. C. PAYARES-ASPRINO, S. LIU, T. A. SIEWERT, Cruciform fillet welded joint fatigue strength improvements by weld metal phase transformations Fatigue & Fracture of Engineering Materials & Structures. ,vol. 31, pp. 125- 136 ,(2008) , 10.1111/J.1460-2695.2007.01205.X
A. Cassanelli, A. Márquez, G. Lombera, L.A. De Vedia, Modelado numérico del socavado lateral en procesos de soldadura Materials Research-ibero-american Journal of Materials. ,vol. 6, pp. 91- 95 ,(2003) , 10.1590/S1516-14392003000100016
AHMET H. ERTAS, FAZIL O. SONMEZ, A parametric study on fatigue strength of spot‐weld joints Fatigue & Fracture of Engineering Materials & Structures. ,vol. 31, pp. 766- 776 ,(2008) , 10.1111/J.1460-2695.2008.01263.X
Z. Barsoum, A. Lundbäck, Simplified FE welding simulation of fillet welds – 3D effects on the formation residual stresses Engineering Failure Analysis. ,vol. 16, pp. 2281- 2289 ,(2009) , 10.1016/J.ENGFAILANAL.2009.03.018
C.D.M. Liljedahl, O. Zanellato, M.E. Fitzpatrick, J. Lin, L. Edwards, The effect of weld residual stresses and their re-distribution with crack growth during fatigue under constant amplitude loading International Journal of Fatigue. ,vol. 32, pp. 735- 743 ,(2010) , 10.1016/J.IJFATIGUE.2009.10.012
Marcelo Tadeu Milan, Waldek Wladimir Bose Filho, Cassius Olívio Figueiredo Terra Ruckert, José Ricardo Tarpani, Fatigue behaviour of friction stir welded AA2024-T3 alloy: longitudinal and transverse crack growth Fatigue & Fracture of Engineering Materials & Structures. ,vol. 31, pp. 526- 538 ,(2008) , 10.1111/J.1460-2695.2008.01234.X
T. L Anderson, Fracture mechanics : fundamentals and applications Published in <b>1995</b> in Boca Raton by CRC Press. ,(1995)