[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.3795/KSME-A.2008.32.12.1123

V-Factor Estimation Under Thermal and Mechanical Stress for Circumferentially Cracked Cylinder

Song, Tae-Kwang (고려대학교 대학원 기계공학부)
Oh, Chang-Kyun (한국전력기술㈜)
Kim, Yun-Jae (고려대학교 기계공학부)

Publication Information

Transactions of the Korean Society of Mechanical Engineers A / v.32, no.12, 2008 , pp. 1123-1131 More about this Journal

Abstract

This paper provides V-factor estimation under combined mechanical and thermal load for circumferential cracks. Results are based on finite element analyses and effect of types and magnitudes of the thermal stress, crack geometry, the loading mode and plastic strain hardening on variations of the V-factor are investigated. The results of finite element analyses are compared with R6 values. As a result, it is shown that R6 gives generally conservative results. The conservatism is especially increased for the combination of large mechanical and thermal load. As a result, new estimation method which uses failure assessment line in R6 is proposed for V-factor and gives less conservative results.

Keywords

V-factor; Primary Stress; Secondary Stress; Reference Stress Method; J-integral;

Citations & Related Records

Times Cited By KSCI : 2 (Citation Analysis)
Times Cited By SCOPUS : 3

1	Song, T. K., Oh, C. K., Kim, Y. J., Kim, J. S. and Jin, T. E., 2007, “Elastic-Plastic Fracture Mechanics Analyses for Circumferential Part-Through Surface Cracks at the Interface Between Elbows and Pipes,” Trans. of the KSME(A), Vol. 31, No.6, pp. 710-717 과학기술학회마을 DOI ScienceOn
2	Stacey, A., Barthelemy, J.-Y. and Leggatt, R.H., “Ainsworth, R.A., 2000, “Incorporation of Residual Stresses into the SINTAP Defect Assessment Procedure,” Engineering Fracture Mechanics, Vol. 67, pp. 573-611 DOI ScienceOn
3	Kim, Y. J., Huh, N.S. and Kim, Y, J., 2001, “Defect Assessment Method for Welded Structures Based on Failure Assessment Diagram,” Journal of Korean Welding Society, Vol. 19, pp. 466-473 과학기술학회마을
4	R6, Revision 4 : Assessment of the Integrity of Structures Containing Defects, British Energy Generation Ltd, 2006
5	Ainsworth, R.A., “The Treatment of Thermal and Residual stresses in Fracture Assessments,” Engineering Fracture Mechanics, Vol. 24, pp. 65-76, 1986 DOI ScienceOn
6	Anderson, T.L., 2005, Fracture Mechanics-Fundamentals and Applications- $3^{rd}$ edition, CRC press (ch. 9)
7	Mirzaee-Sisan, A., Truman, C.E., Smith, D.J. and Smith, M.C, 2007, “Interaction of Residual Stress with Mechanical Loading in a Ferritic Steel,” Engineering Fracture Mechanics, Vol. 74, pp. 2864-2880 DOI ScienceOn
8	Ainsworth, R.A. and Hooton, D.G., 2008, “R6 and R5 Procedures : The Way Forward,” Int. J. of Pres. Ves. and Piping, Vol. 85, pp. 175-182 DOI ScienceOn
9	Ainsworth, R.A., Sharples, J. K. and Smith, S.D., 2000, “Effects of Residual Stresses on Fracture Behavior-Experimental Results and Assessment Methods,” Journal of Strain Analysis, Vol. 35, No.4, pp. 307-315 DOI ScienceOn

6	Chang-Young Oh. (2011) Transactions of the Korean Society of Mechanical Engineers A Estimation of C(t) -Integral Under Transient Creep Conditions for a Cracked Pipe Subjected to Combined Mechanical and Thermal Loads Depending on Loading Conditions / 35 (6) , 609
9	Tae-Kwang Song. (2009) Transactions of the Korean Society of Mechanical Engineers A Estimations of the C(t)-Integral in Transient Creep Condition for Pipe with Crack Under Combined Mechanical and Thermal Stress (I) - Elastic-Creep - / 33 (9) , 949
10	Tae-Kwang Song. (2009) Transactions of the Korean Society of Mechanical Engineers A Estimation of C(t)-Integral in Transient Creep Condition for Pipe with Crack Under Combined Mechanical and Thermal Stress (II) - Elastic-Plastic-Creep - / 33 (10) , 1065

1	Estimations of the C(t)-Integral in Transient Creep Condition for Pipe with Crack Under Combined Mechanical and Thermal Stress (I) - Elastic-Creep - / [Song, Tae-Kwang;Kim, Yun-Jae;] / Transactions of the Korean Society of Mechanical Engineers A
2	Estimation of C(t)-Integral in Transient Creep Condition for Pipe with Crack Under Combined Mechanical and Thermal Stress (II) - Elastic-Plastic-Creep - / [Song, Tae-Kwang;Kim, Yun-Jae;] / Transactions of the Korean Society of Mechanical Engineers A
3	Estimation of C(t) -Integral Under Transient Creep Conditions for a Cracked Pipe Subjected to Combined Mechanical and Thermal Loads Depending on Loading Conditions / [Oh, Chang-Young;Song, Tae-Kwang;Kim, Yun-Jae;] / Transactions of the Korean Society of Mechanical Engineers A

1	/ Transactions of the Korean Society of Mechanical Engineers, A
2	/ Transactions of the Korean Society of Mechanical Engineers, A
3	/ Transactions of the Korean Society of Mechanical Engineers, A

KSCI

V-Factor Estimation Under Thermal and Mechanical Stress for Circumferentially Cracked Cylinder 열하중 및 기계하중이 작용하는 원주 방향 균열 배관에 대한 V-계수 평가

V-Factor Estimation Under Thermal and Mechanical Stress for Circumferentially Cracked Cylinder