The Fracture Toughness of the Welding Zone in Gas Transfer Steel Pipes by Experimental and Numerical Methods
الموضوعات :
M. R Torshizian
1
,
M Boustani
2
1 - Mechanical Engineering Department, Mashhad Branch, Islamic Azad University, Mashhad, Iran
2 - Mechanical Engineering Department, Mashhad Branch, Islamic Azad University, Mashhad, Iran
تاريخ الإرسال : 17 الجمعة , رجب, 1443
تاريخ التأكيد : 14 الجمعة , رمضان, 1443
تاريخ الإصدار : 02 الأربعاء , ذو القعدة, 1443
الکلمات المفتاحية:
Three-point bending test,
Abaqus Software,
Gas and oil pipeline,
fracture toughness,
ملخص المقالة :
Fracture toughness is a criterion to determine the resistance of materials against small longitudinal and peripheral cracks, which can be created in the effect of welding or peripheral effects. Therefore, it is extremely important to scrutiny the factors that impress crack treatment and the way that it grows. In this research, fracture toughness was investigated on the peripheral welding zone in gas and oil transfer pipelines made in steel API X65. The fracture toughness is derived by using two different methods. At first, the three-point bending test method was used on samples that made up of the peripheral welding zone. Then, with a numerical simulation it was calculated by ABAQUS software v6/10. The comparison of experimental results and computer simulation results shows good agreement from two methods. The fracture toughness of the welded zone, obtained in this study, was compared with that of the base metal. The results showed that fracture toughness on the welding zone in gas and oil transfer steel pipelines decreased 43% compared to the base metal. This issue shows that peripheral welding on gas and oil transfer pipelines has more talent for crack growth compared to the base metal.
المصادر:
Shin K.I., Park J.H., 2002, Simulation of stress corrosion crack growth in steam generation tubes, Nuclear Engineering and Design 214: 91-101.
Kamaya M., Kitamura T.A., 2004, Simulation on growth of multiple small cracks under stress corrosion, International Journal of Fracture 130(4): 787-801.
Lee J.S., Ju J.B., Jang J.I, Kim W.S., Kwon D., 2004, Weld crack assessments in API X65 pipeline failure assessment diagrams with variations in representative mechanical properties, Materials Science and Engineering 373: 122-130.
Oh C.K., Kim Y.J., Beak J.H., Kim Y.P., Kim W., 2007, A phenomenological model of ductile fracture for API X65 steel, International Journal of Mechanical Sciences 49: 1399-1412.
Beak J.H.,Kim Y.P., Kim C.M., Kim W.S., Seok C.S., 2010, Effect of Pre-Strain on the mechanical properties of API X65 pipe, Material and Science A 527(6): 1473-1479.
Ben Amara M., Pluvinage G., Capelle J., Azari Z., 2016, Modelling crack propagation and arrest in gas pipes using CTOA criterion, Fracture at all Scales 2016: 171-194.
Sirin K., Sule Y., Kaluc E., 2016, Influence of the chemical composition of weld electrode on the mechanical properties of submerged arc welded pipe, The International Journal of Advanced Manufacturing Technology 87(5-8): 1941-1950.
Maksuti R., Mehmeti H., Baum H., Rama M., Çerkini N., 2017, Correlation of microstructure and toughness of the welded joint of pipeline steel X65, Damage and Fracture Mechanics 2017: 315-322.
Mansor N.I.I., Abdullah S., Ariffin A.K., 2017, Discrepancies of fatigue crack growth behaviour of API X65 steel, Journal of Mechanical Science and Technology 31(10): 4719-4726.
Yu P., Lu J., Zhao J., 2018, Finite element simulations of dynamic fracture of full-scale gas transmission pipelines, Acta Mechanica Solida Sinica 31(3): 357-368.
Kingklang S., Uthaisangsuk V., 2018, Plastic deformation and fracture behavior of X65 pipeline steel: Experiments and modeling, Engineering Fracture Mechanics 191(15): 82-101.
Standard Test Method for Measurement Fracture Toughness, 2001, E1820, ASTM.
Gdoutos E.E., 2005, Fracture Mechanics, Springer.
Zhu X.K., James A., 2012, Review of fracture toughness (G, K, J, CTOD, CTOA) testing and standardization, Engineering Fracture Mechanics 85: 1-46.
