PSI - Issue 37
Dániel Antók et al. / Procedia Structural Integrity 37 (2022) 796–803 Dániel Antók, Tamás Fekete et. al. : Evaluation Framework … / Structural Integrity Procedia 00 (2019) 000 – 000
803
8
4. Summary, Conclusions As discussed in the paper, the methodology and results of SICs are subject to the predictive capabilities of the theoretical framework underlying the SI methodology, as well as the quantity and quality of the information obtained from material tests supporting them. Methodology development is ongoing Centre for Energy Research as part of a long-term research project to increase the predictive power of future SICs , whereby the methodology of measurements and their evaluation will be harmonised with the methodology of SI . Digital Twin based modelling of experiments as a model-based pragmatic tool for the evaluation of measurements was chosen, to ensure that the massive amount of data – collected by the optical system in the experiments – , during evaluation, can be used quickly and efficiently (1) to verify or falsify theoretical models and (2) to determine required material properties. General theoretical and methodological considerations, as well as the presented first results of tensile tests evaluated with the digital twin based system clearly show that the new system's validity limits can go far beyond the limits of standards-based evaluation methods. Though the initial results presented here are encouraging, much work is still to be done. Firstly, the measurements need to be extended to the range of temperatures required by industry, and secondly, to more general types of constitutive models. Acknowledgements The research is funded by the Thematic Excellence Programme 2020 (2020-4.1.1.-TKP2020) supported by the Ministry of Innovation and Technology of Hungary. The encouraging support of Ákos Horváth is deeply appreciated. References ASME 2021, 2021. Boiler and Pressure Vessel Code Complete Set . ASME, New York. Bolzon, G., 2014. Advances in experimental mechanics by the synergetic combination of full-field measurement techniques and computational tools, Measurement 54 159 – 165. DOI: https://doi.org/10.1016/j.measurement.2014.04.020 Bažant, Z.P., Cedolin, L., 1991. Stability of Structures -Elastic, Inelastic, Fracture and Damage Theories- . Oxford University Press, New York, Oxford. Clayton, J.D., 2011. Nonlinear Mechanics of Crystals . Springer Dordrecht Heidelberg London New York. Fedorko, G., Molnár, V., Vasiľ, M., Salai, R., 2021. Proposal of Digital Twin for Testing and Measuring of Transport Belts fo r Pipe Conveyors within the Concept Industry 4.0, Measurement 61 DOI: https://doi.org/10.1016/j.measurement.2021.108978 Fradkov, A.L., 2005. Application of cybernetic methods in physics, Physics – Uspekhi 48 2 103 – 127. Fradkov, A.L., 2017. Horizons of cybernetical physics, Philosophical Transactions of the Royal Society A 375 20160223 DOI: https://dx.doi.org/ 10.1098/rsta.2016.0223 Gilmore, R., 1993. Catastrophe Theory for Scientists and Engineers . Dover Publications, Inc., New York Hirschberger, C.B., 2008. A Treatise on Micromorphic Continua, Theory, Homogenization, Computation . UKL/LTM T 08-03 TU Kaiserslautern. Hollomon, J.R., 1945. Tensile Deformation, Transactions of the Metallurgical Society of AIME . 162 268 – 289. ISO 6892-1, 2019. Technical Committee ISO/TC164/SC1 Uniaxial testing ISO 6892-1:2019, Metallic materials – Tensile testing – Part 1: Method of test at room temperature. Ivanova, V.S., 1998. Synergetics. Strength and Fracture of Metallic Materials . Cambridge International Science Publishing, Great Abington Lucas, B.D., Kanade, T., 1981, An iterative image registration technique with an application to stereo vision, In: IJCAI'81 Proceedings of the 7 th International Joint Conference on Artificial Intelligence, Volume 2 August 1981 . Morgan Kaufmann Publishers, San Francisco. 674 – 679. Ludwik, P., 1909. Elemente der Technologishen Mechanik . Springer, Berlin. Nireki, T., 1996. Service life design. Construction and Building Materials10:5 403 – 406. Maugin G.A., 2009. On inhomogeneity, growth, ageing and the dynamics of materials, J. of Mechanics of Materials and Structures 4 4, 731 – 741. NSF Program, 2020. Cyber-Physical Systems , https://www.nsf.gov/pubs/2020/nsf20563/ nsf20563.pdf Ramberg, W., Osgood, W. R., 1943. Description of stress – strain curves by three parameters, Technical Note No. 902. National Advisory Committee for Aeronautics , Washington DC. Ruggieri, C., 2020. Amodified local approach including plastic strain effects to predict cleavage fracture toughness from subsize precracked Charpy specimens, Theoretical and Applied Fracture Mechanics 105 102421 https://doi.org/10.1016/j.tafmec.2019.102421 Tao, F., Zhang, M., Nee, A.Y.C. 2019. Background and Concept of Digital Twin, In: Tao, F., Zhang, M., Nee, A. Y. C. (ed.): Digital Twin Driven Smart Manufacturing , Academic Press, 3 – 28. Toribio, J., 2020. Towards a new concept of structural integrity, The 1 st Mediterranean Conference on Fracture and Structural Integrity, MedFract1, Procedia Structural Integrity 26 354– 359. https://10.1016/j.prostr.2020.06.045 Toussaint, F., Tabourot, L., Vacher, P., 2008. Experimental study with a Digital Image Correlation (DIC) method and numerical simulation of an anisotropic elastic - plastic commercially pure titanium, Archives of Civil and Mechanical Engineering 8 3 131 – 143.
Made with FlippingBook Ebook Creator