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A Micromechanical Model for Ductile Fracture of API X65

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Abstract:

This paper presents a micro-mechanical model of ductile fracture for the API X65 steel, using the Gurson-Tvergaard-Needleman (GTN) model. Experimental tests and FE damage simulations using the GTN model are performed for smooth and notched tensile bars with three different notch radii, from which micromechanical parameters in the GTN model are calibrated. The calibrated micro-mechanical model is applied to quantify pre-strain effects on plastic deformation and fracture of the API X65 steel. Good agreements of the FE damage results with experimental data suggest confidence in the use of the proposed micro-mechanical model to simulate ductile failure of pipelines made of API X65 steels.

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Periodical:

Key Engineering Materials (Volumes 321-323)

Pages:

43-47

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.321-323.43

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Cite this paper

Online since:

October 2006

Authors:

Chang Kyun Oh, Yun Jae Kim, Jong Hyun Baek, Young Pyo Kim, Woo Sik Kim

Keywords:

API X65, Ductile Fracture, GTN Model, Micromechanical Model, Pre-Strain Effect

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] Gurson, A. L., Journal of Engineering Material and Technology, 1977, 99, 2-15.

Google Scholar

[2] Maclintock, FA., Journal of Applied Mechanics, 1968, 35, 363-371.

Google Scholar

[3] Rice, JR. and Tracey, DM., Journal of the Mechanics and Physics of Solids, 1969, 17, 201-217.

Google Scholar

[4] Beremin, F.M., Metallurgical Transactions, 1981, 12A, 723-731.

Google Scholar

[5] Rousselier G., Nuclear Engineering and Design, 1987, 105, 97-111.

Google Scholar

[6] Tvergaard, V., International Journal of Fracture, 1982, 18, 237-252.

Google Scholar

[7] Chu, C. and Needleman, A., Journal of Engineering Materials and Technology, 1980, 102, 249-256.

Google Scholar

[8] Tvergaard, V. and Needleman, A., Acta Metallurgica, 1982, 32, 157-169.

Google Scholar

[9] Dotta, F. and Ruggieri, C., Int. J. of Pressure Vessels and Piping, 2004, 81, 761-770.

Google Scholar

[10] Rivalin, F., Pineau, A., Di Fant, M. and Besson, J. Engineering Fracture Mechanics, 2001, 68, 329-364.

DOI: 10.1016/s0013-7944(00)00107-7

Google Scholar

[11] Needleman, A. and Tvergaard, V., Journal of the Mechanics and Physics of Solids, 1987, 35, 151-183.

Google Scholar

[12] ABAQUS Version 6. 2-1. User's manual. Hibbitt, Karlsson and Sorensen, Inc, RI; (2001).

Google Scholar

[13] Bridgman, P., Studies in Large Plastic Flow and Fracture, McGraw-Hill Book Company, Inc., New York, (1952).

Google Scholar

[14] Franklin, A.G., Journal of the Iron and Steel Institute, 1969, 207, 181-186.

Google Scholar

[15] Hagiwara, N., Masuda, T. and Oguchi, N., Journal of Pressure Vessel Technology, 2001, 355-361.

Google Scholar