Abstract
Local characteristics of predominantly brittle fracture have been analysed arising from the primary data obtained by using Charpy type specimens. Two model ferritic microstructures have been selected for knowledge presentation that differ significantly in their carbide thickness and scatter of fracture toughness data. Based on the deterministic approach to the analysis of cleavage failure under the notch root, the local fracture criteria have been evaluated using fracture micromechanism assessment combined with FEM calculations. The effective distances have been calculated from normal stress distributions and compared with depth of initiation point below the notch root measured from fracture surfaces. Accepting the Beremin approach to the analysis of cleavage failure criteria the local fracture parameters have been calculated for Charpy type specimen. For the microstructures investigated the Weibull stresses (location parameters) were related to cleavage fracture stresses determined supposing deterministic nature of cleavage fracture events at initiation. Microstructural and microfractographic reasons for scatter of data and connection to between local fracture criteria were determined.
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References
Knott J.F., J. (1966) Iron&Steel Inst. Vol. 204 104–111.
Ritchie R.O., Knott J.F.&Rice J.R. (1973) J. Mech. Phys. Solids 21: pp. 395–410.
Lin T., Evans A.G., Ritchie R.O. (1987) Met. Trans. I8A, pp641–651.
Krasovsky A.J., Pluvinage G. (1996) Journal de Physique III.6, pp. C6 215–244.
MartĂn-Meizoso A. (1994) Acta Metali Mater. 42: pp. 2057–2068.
Smith E. (1966) In Proc. of Conf. on Physical Basis of Yield and Fracture, Inst. of Physics, Oxford, pp. 36–45.
Petch N.J. (1986) Acta Metal. 34: pp. 1387–1394.
Bowen P. (1986) Acta Metal. 34: pp. 677–684.
Dlouhý I., Kozák V& M. Holzmann (1996) Journal de Physique III. 6: pp. C6-205-214.
Chen J.H. Wang G.Z., Wang Z., Zhu L.& Gao Y.Y. (1991) Met. Trans. 22A: pp. 2287–2296.
Niu. L, Chehimi. C& Pluvinage. G. (1994) Engng. Fract. Mech 49, N3, pp. 325–335.
Curry D., Knott J.F. (1979). Met. Science. 13: pp. 341–345.
Beremin F. M. (1983) Metall Trans. 14A: pp. 2277–2287.
Strnadel B. (1995) Modelling of Fracture Events in Structural Steels. Thesis for Doctor of Science Degree. Technical University of Ostrava.
Curry D. A. Metal Science (1978) 511–515.
Válka L. Holzmann M& Dlouhý I. (1997) Materials Science&Engineering. A234–236: pp. 723-726.
Kozák L., Dlouhý I., (1996) Proc. of Int. Conf. Numerical methods in Fracture Mechanics, Stará Lesná.
LĂsek M. (1998) Diploma works, University of Brno.
Pluvinage G., et al; (1999) Theoretical and applied fracture mechanics, 31, pp. 149–156.
Brozzo P. (1977) Metal Science, 11 123–128.
Petch N.J. (1986) Acta Metal. 34, 1387–1394.
Smith E., (1966) In Proc. of Conf. on Physical Basis of Yield and Fracture Inst. of Physics, Oxford, UK 36–45.
Sainte-Catherine C. (1995) Draft procedure to measure and calculate local fracture criteria on notched tensile specimens, Meeting of ESIS TCI, Elastic Plastic Fracture Mechanics, Appendix 1.
Lidbury D. P. G., Sherry A.H., Beadsmore D. et al. (1996) Application of local approach to predict cleavage and ductile fracture, TAGSI Symp. Advances in Fracture Mechanics.
Lenkey G. B. et al: (1999) 8 th int. Conf. On Achievements in Mechanical and Materials Engineering, Gliwice, pp. 375–378.
Sainte Catherine C. (2000) Finite Element Simulations of Charpy-V and Sub-Size Charpy Tests for a Low Alloy RPV Ferritic Steel, Seminar TC 5 ESIS. Manchester.
Rossol A. et al. (1996) Journal de Physique III. 6, pp. C6-279-286.
Lisek M, (2000) unpublished works, IPM ASCR Brno.
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DlouhĂ˝, I., Chlup, Z., Holzmann, M. (2001). Local Characteristics of (Brittle) Failure Assessed from Charpy Type Specimen. In: Pluvinage, G., Gjonaj, M. (eds) Notch Effects in Fatigue and Fracture. NATO Science Series, vol 11. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0880-8_9
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DOI: https://doi.org/10.1007/978-94-010-0880-8_9
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