Browse > Article
http://dx.doi.org/10.3795/KSME-A.2012.36.7.769

Finite Element Damage Analysis for Cast Stainless Steel (CF8M) Material Considering Variance in Experimental Data  

Jeon, Jun-Young (Dept. of Mechanical Engineering, Korea Univ.)
Kim, Nak-Hyun (Dept. of Mechanical Engineering, Korea Univ.)
Kim, Yun-Jae (Dept. of Mechanical Engineering, Korea Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.36, no.7, 2012 , pp. 769-776 More about this Journal
Abstract
The damage analysis method in this paper needs a material property and failure criteria. The material properties and the failure criteria could be easily obtained from the results of notched bar tensile tests carried out on other materials studied previously. However, for the cast stainless steel (CF8M) material in this paper, because of the variance in the results from notched bar tensile tests under the same conditions, the material property and the failure criteria could be obtained differently, depending on the analyzer. Therefore, a proper procedure that can confirm the material property and failure criteria are needed. In this work, the averaged material property was obtained from the notched bar with a 16-mm notch radius, and three failure criteria for CF8M material by finite element analysis were obtained. Applying the material property and the failure criteria, FE damage analysis for the J-R fracture toughness test was conducted. For validation, the simulated results were compared with the experimental results.
Keywords
Damage Method; Ductile Failure; Finite Element Analysis;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Dotta, F. and Ruggieri, C., 2004, "Structural Integrity Assessments of High Pressure Pipelines with Axial Flaws Using a Micromechanics Model," International Journal of Pressure Vessels and Piping, Vol. 81, No. 9, pp. 761-770.   DOI   ScienceOn
2 Oh, C. K., Kim, Y. J., Baek, J. H. and Kim, W. S., 2007, "Development of Stress-Modified Fracture Strain for Ductile Failure of API X65 Steel," International Journal of Fracture, Vol. 143, No. 2, pp. 119-133.   DOI
3 Shin, C. F., German, M. D. and Kumar, V., 1981, "An Engineering Approach for Examining Crack Growth and Stability in Flawed Structures," International Journal of Pressure Vessels and Piping, Vol. 9, No. 3, pp. 159-196.   DOI   ScienceOn
4 ABAQUS Version 6.9, 2009, User's Manual. Inc. and Dassault Systems.
5 Rice, J. R. and Tracey, D. M., 1969, "On the Ductile Enlargement of Voids in Triaxial Stress Fields," Journal of the Mechanics and Physics of Solids, Vol. 17, No. 3, pp. 201-217.   DOI   ScienceOn
6 Kim, N. H., Oh, C. S. and Kim, Y. J., 2010, "A Method to Predict Failure Pressures of Steam Generator Tubes with Multiple Through-Wall Cracks," Engineering Fracture Mechanics, Vol. 77, No. 5, pp. 842-855.   DOI   ScienceOn
7 Gurson, A. L., 1997, "Continuum Theory of Ductile Rupture by Void Nucleation and Growth : Part 1-Yield Criteria and Flow Rules for Porous Ductile Media," Journal of Engineering Materials and Technology, Vol. 99, No. 1, pp. 2-15.
8 Tvergaard, V., 1982, "On Localization in Ductile Materials Containing Spherical Voids," International Journal of Fracture, Vol. 18, No. 4, pp. 237-252.
9 Chu, C. C. and Needleman, A., 1980, "Void Nucleation Effects in Biaxially Stretched Sheets," Journal of Engineering Materials and Technology, Vol. 102, No. 3, pp. 249-256.   DOI
10 Rivalin, F., Besson, J., Pineau, A. and Di Fant, M., 2000, "Ductile Tearing of Pipeline-Steel Wide Plates: II. Modeling of in-Plane Crack Propagation," Engineering Fracture Mechanics, Vol. 68, No. 3, pp. 347-364.   DOI   ScienceOn