PSI - Issue 51

Michael Horvath et al. / Procedia Structural Integrity 51 (2023) 95–101 M. Horvath et al./ Structural Integrity Procedia 00 (2022) 000–000

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the number of cycles to failure N f . Application of the established SED-based method with a different notch geometry yields fatigue life results which are in correspondence to the TCD-results. An investigation on the dependency of R c and L M on N f confirmed the basic relation as reported in literature, but features additional values for increasing load cycle number until failure. Ongoing research deals with the elastic-plastic SED-based assessment of complexly shaped spatial imperfections targeting simplified numerical methods to efficiently gain strain energy density values for non linear material properties in the notch control volume. Acknowledgements The financial support by the Austrian Federal Ministry for Digital and Economic Affairs and the National Foundation for Research, Technology and Development is gratefully acknowledged. References Bolouri, A., Kim, T.-W., Kang, C. G., 2013. Processing of Low-Carbon Cast Steels for Offshore Structural Applications. Materials and Manufacturing Processes 28, 1260–1267. Campbell, J. 2011. Complete Casting Handbook: Metal Casting Processes, Techniques and Design : Elsevier Butterworth-Heinemann. Oxford, UK. Chiandussi, G., Rossetto, M., 2005. Evaluation of the Fatigue Strength of Notched Specimens by the Point and Line Methods with high Stress Ratios. Cumulative Fatigue Damage Conference - University of Seville 2003 Cumulative Fatigue Damage Conference 27, 639–650. Gao, Y., 2008. Development of 30Cr06A, a High Strength Cast Steel and its Welding Ability. Journal of China University of Mining and Technology 18, 296–299. Gómez, F. J., Elices, M., Berto, F., Lazzarin, P., 2007. Local Strain Energy to Assess the Static Failure of U-Notches in Plates inder Mixed Mode Loading. International Journal of Fracture 145, 29–45. Haibach, E., Matschke, C., 1982. The Concept of Uniform Scatter Bands for Analyzing Curves of Unnotched and Notched Specimens in Structural Steel. In: Low-Cycle Fatigue and Life Prediction . In C. Amzallag, B. N. Leis, P. Rabbe (Eds.): ASTM International. 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959 (549-549-23). Horvath, M., Stoschka, M., Fladischer, S., 2022. Fatigue Strength Study Based on Geometric Shape of Bulk Defects in Cast Steel. International Journal of Fatigue 162, 107082. Jung, S., Jo, Y. H., Jeon, C., Choi, W.-M., Lee, B.-J., Oh, Y.-J., Kim, G.-Y., Jang, S., Lee, S., 2017. Effects of Mn and Mo Addition on High Temperature Tensile Properties in High-Ni-Containing Austenitic Cast Steels Used for Turbo-Charger Application. Materials Science and Engineering: A 682, 147–155. Lazzarin, P., Berto, F., 2005. Some Expressions for the Strain Energy in a Finite Volume Surrounding the Root of Blunt V-notches. International Journal of Fracture 135, 161–185. Rennert, R., Kullig, E., Vormwald, M. 2012. Analytical strength assessment of components Made of Steel, Cast Iron and Aluminium Materials in Mechanical Engineering: FKM Guideline. (6th revised Edition, 2012): VDMA Verl. Frankfurt am Main. Schuscha, M., Horvath, M., Leitner, M., Stoschka, M., 2019a. Notch Stress Intensity Factor (NSIF)-Based Fatigue Design to Assess Cast Steel Porosity and Related Artificially Generated Imperfections. Metals 9, 1097. Schuscha, M., Leitner, M., Stoschka, M., Meneghetti, G., 2020. Local Strain Energy Density Approach to Assess the Fatigue Strength of Sharp and Blunt V-Notches in Cast Steel. International Journal of Fatigue 132, 105334. Schuscha, M., Leitner, M., Stoschka, M., Pusterhofer, S., Meneghetti, G., 2019b. Numerical Crack Growth Study on Porosity Afflicted Cast Steel Specimens. Frattura ed Integrità Strutturale 13, 58–69. Sigl, K., Hardin, R., Stephens, R., Beckermann, C., 2003. Fatigue of 8630 Cast Steel in the Presence of Shrinkage Porosity. In: Proceedings of the 57th SFSA Technical and Operating Conference . In Steel Founder's Society of America (Ed.). Sonsino, C., 2007. Course of SN-Curves Especially in the High-Cycle Fatigue Regime with Regard to Component Design and Safety. International Journal of Fatigue 29, 2246–2258. Stefanescu, D. M. 2017. Cast Iron Science and Technology : ASM International. Susmel, L., Taylor, D., 2007. A Novel Formulation of the Theory of Critical Distances to Estimate Lifetime of Notched Components in the Medium Cycle Fatigue Regime. Fatigue and Fracture of Engineering Materials and Structures 30, 567–581. Taylor, D., 1999. Geometrical Effects in Fatigue: A Unifying Theoretical Model. International Journal of Fatigue 21, 413–420. Taylor, D., 2005. Analysis of Fatigue Failures in Components Using the Theory of Critical Distances. Engineering Failure Analysis 12, 906–914. Taylor, D., Bologna, P., Bel Knani, K., 2000. Prediction of Fatigue Failure Location on a Component Using a Critical Distance Method. International Journal of Fatigue 22, 735–742. Yosibash, Z., Bussiba, A., Gilad, I., 2004. Failure Criteria for Brittle Elastic Materials. International Journal of Fracture 125, 307–333.