PSI - Issue 73

Petr Mynarcik et al. / Procedia Structural Integrity 73 (2025) 112–118 Petr Mynarcik, Miroslav Vacek, David Mikolasek, Vladislav Bures/ Structural Integrity Procedia 00 (2025) 000–000

118

7

FEM analysis is limited by the extremely high resolution of the scans, which results in a very dense mesh. These detailed meshes require a lot of computing memory and power and may be too much for standard FEM solvers and computers to solve. Therefore, it will be necessary to apply mesh simplification techniques to make these models suitable for practical FEM simulations while retaining the critical geometric features relevant to structural assessment. Using advanced scanning technology and FEM analysis together could greatly improve understanding of how wires break down and fail. More work is needed to improve the digital models for the possibility of making simulations. Acknowledgements Acknowledgement to Rada Building s.r.o. for co-funding of this research project. References [1] Rou, Li & Miao, Changqing & Feng, Zhaoxiang & Wei, Tinghua, 2021. Experimental study on the fatigue behavior of corroded steel wire. Journal of Constructional Steel Research. 176. 106375. 10.1016/j.jcsr.2020.106375. [2] Melchers, R.E. & Pape, Torill, 2013. Performance of 45-year-old corroded prestressed concrete beams. Proceedings of the ICE - Structures and Buildings. 166. 547-559. 10.1680/stbu.11.00016. [3] Orgnoni, Andrea & Pinho, Rui & Moratti, Matteo & Scattarreggia, Nicola & Calvi, G., 2023. Critical review and modelling of the construction sequence and loading history of the collapsed Morandi bridge. International Journal of Bridge Engineering (IJBE), Vol. 10, No. 3, (2022), pp. 37-62. [4] Farhidzadeh, A., A. Ebrahimkhanlou and S. Salamone, 2015. Corrosion damage estimation in multi-wire steel strands using guided ultrasonic waves. Proceedings of SPIE - The International Society for Optical Engineering. 2015, vol. 9437. DOI: 10.1117/12.2084053. [5] Jeon, Chiho & Cuong, Nguyen & Shim, Changsu, 2020. Assessment of Mechanical Properties of Corroded Prestressing Strands. Applied Sciences. 10. 4055. 10.3390/app10124055. [6] Miyachi, Kazuhiro & Chryssanthopoulos, Marios & Nakamura, Shunichi, 2021. Experimental assessment of the fatigue strength of corroded bridge wires using non-contact mapping techniques. Corrosion Science. 178. 109047. 10.1016/j.corsci.2020.109047. [7] ISO 9227:2022 Corrosion tests in artificial atmospheres — Salt spray tests , International Organization for Standardization. 2022.