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Fracture Mechanics Assessment for Different Notch Sizes Using Finite Element Analysis Based on Ductile Failure Simulation
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 Title & Authors
Fracture Mechanics Assessment for Different Notch Sizes Using Finite Element Analysis Based on Ductile Failure Simulation
Bae, Keun Hyung; Jeon, Jun Young; Han, Jae Jun; Nam, Hyun Suk; Lee, Dae Young; Kim, Yun Jae;
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 Abstract
In this study, notch defects are evaluated using fracture mechanics. To understand the effects of notch defects, FE analysis is conducted to predict the limit load and J-integral for middle-cracked and single-edge cracked plates with various sizes of notch under tension and bending. As the radius of the notch increases, the energy release rate also increases, although the limit load remains constant. The values of fracture toughness() of SM490A are determined for various notch radii through FE simulation instead of conducting an experiment. As the radius of the notch increases, the energy release rate also increases, together with a more significant increase in fracture toughness. To conclude, as the notch radius increases, the resistance to crack propagation also increases.
 Keywords
Notch Defect;Notch Effect;Notch C(T);Virtual Testing Method;Damage Simulation;
 Language
Korean
 Cited by
 References
1.
Lee, D. Y., Park, H. B., Bae, K. H. and Kim, Y. J., 2014, "Limit Load Analysis for Circumferential Pipe Weld with Notch Type Flaw," Trans, of the KSME Spring conference, Vol. 4, pp. 283-284.

2.
Bond, S., 2003, "Corrosion of Welded Components in Marine Environments," Prevention and Management of Marine Corrosion, TWI.

3.
Kamaya, M., 2012, "A Stress-based Criterion for Ductile Crack Initiation of Pre-strained Carbon Steel," Engineering Fracture Mechanics, Vol. 96, pp. 461-479. crossref(new window)

4.
British Energy Generation Ltd., 2010, "Assessment of the Integrity of Structures Containing Defects," R6 Revision 4.

5.
McClintock, F. A., 1968, "A Criterion for Ductile Fracture by the Growth of Holes," Journal of Applied Mechanics Vol. 35, No. 2, pp. 363-371. crossref(new window)

6.
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. crossref(new window)

7.
Hancock, J. W. and Mackenzie, A. C., 1976, "On the Mechanisms of Ductile Failure in High-strength Steels Subjected to Multi-axial Stress-states," Journal of the Mechanics and Physics of Solids Vol. 24, No. 2-3, pp. 147-160. crossref(new window)

8.
Arndt, J. and Dahl, W., 1997, "Effect of Void Growth and Shape on the Initiation of Ductile Failure of Steels," Computational Materials Science, Vol. 9, No. 1-2, pp. 1-6. crossref(new window)

9.
Kanvinde, A. and Deierlein, G., 2006, "The Void Growth Model and the Stress Modified Critical Strain Model to Predict Ductile Fracture in Structural Steels," Journal of Structural Engineering, Vol. 132, No. 12, pp. 1907-1918. crossref(new window)

10.
Abaqus 6.13, Analysis User's Manual, Dassault Systemes Simulia Corp., Providence, RI, 2013.

11.
Jeon, J. Y., Kim, N. H. and Kim, Y. J., 2012, "Finite Element Damage Analysis for Cast Stainless Steel (CF8M) Material Considering Variance in Experimental Data," Trans. Korean Soc. Mech. Eng. A, Vol. 36, pp. 769-776. crossref(new window)

12.
ASTM E1820-11e1: Standard Test Method for Measurement for Fracture Toughness. 2006, American Society of Testing and Materials.

13.
ESIS P2-92: ESIS Procedure for Determining the Fracture Behaviour of Materials; 1992, "European Structural Integrity Society," pp. 28-A7.2.

14.
Kamaya, M., 2013, "Estimation of Elastic-plastic Fracture Toughness by Numerical Simulation Based on a Stress-based Criterion for Ductile Crack Initiation," International Journal of pressure Vessels and Piping, Vol. 117-118, pp. 2-8.