{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,13]],"date-time":"2025-11-13T07:17:05Z","timestamp":1763018225281,"version":"build-2065373602"},"reference-count":25,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2020,7,21]],"date-time":"2020-07-21T00:00:00Z","timestamp":1595289600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100014434","name":"the Polish National Agency for Academic Exchange","doi-asserted-by":"publisher","award":["PPN\/BUA\/2019\/1\/00086"],"award-info":[{"award-number":["PPN\/BUA\/2019\/1\/00086"]}],"id":[{"id":"10.13039\/501100014434","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Metals"],"abstract":"<jats:p>The paper deals with the subject of diagnostics and the quick repairs of long-term operated metallic materials. Special attention was paid to historical materials, where the structure (e.g., puddle iron) is different from modern structural steels. In such materials, the processes of microstructural degradation occur as a result of several decades of exposure, which could overpass 100 years. In some cases, their intensity can be potentially catastrophic. For this reason, the search for minimally invasive diagnostic methods is ongoing. In this paper, corrosion and fracture toughness tests were conducted, and the results of these studies were presented for two material states: post-operated and normalized (as a state \u201crestoring\u201d virgin state). Moreover, through the use of modern numerical methods, composite crack-resistant patches have been designed to reduce the stress intensity factors under cyclic loads. As a result, fatigue lifetime was extended (propagation phase) by more than 300%.<\/jats:p>","DOI":"10.3390\/met10070984","type":"journal-article","created":{"date-parts":[[2020,7,22]],"date-time":"2020-07-22T03:23:16Z","timestamp":1595388196000},"page":"984","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Minimal Invasive Diagnostic Capabilities and Effectiveness of CFRP-Patches Repairs in Long-Term Operated Metals"],"prefix":"10.3390","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3553-6107","authenticated-orcid":false,"given":"Grzegorz","family":"Lesiuk","sequence":"first","affiliation":[{"name":"Department of Mechanics, Materials and Biomedical Engineering, Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Smoluchowskiego 25, PL-50-370 Wroc\u0142aw, Poland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5917-0309","authenticated-orcid":false,"given":"Bruno A. S.","family":"Pedrosa","sequence":"additional","affiliation":[{"name":"ISISE, Departamento de Engenharia Civil, Universidade de Coimbra, Rua Lu\u00eds Reis Santos, P\u00f3lo II, 3030-788 Coimbra, Portugal"}]},{"given":"Anna","family":"Zi\u0119ty","sequence":"additional","affiliation":[{"name":"Department of Mechanics, Materials and Biomedical Engineering, Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Smoluchowskiego 25, PL-50-370 Wroc\u0142aw, Poland"}]},{"given":"Wojciech","family":"B\u0142a\u017cejewski","sequence":"additional","affiliation":[{"name":"Department of Mechanics, Materials and Biomedical Engineering, Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Smoluchowskiego 25, PL-50-370 Wroc\u0142aw, Poland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4148-9426","authenticated-orcid":false,"given":"Jose A. F. O.","family":"Correia","sequence":"additional","affiliation":[{"name":"Faculty of Engineering, University of Porto, Rua Dr Roberto Frias, 4200-465 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1059-715X","authenticated-orcid":false,"given":"Abilio M. P.","family":"De Jesus","sequence":"additional","affiliation":[{"name":"Faculty of Engineering, University of Porto, Rua Dr Roberto Frias, 4200-465 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0046-8810","authenticated-orcid":false,"given":"Cristiano","family":"Fragassa","sequence":"additional","affiliation":[{"name":"Department of Industrial Engineering, University of Bologna, Viale Risorgimento 6, 40133 Bologna, Italy"}]}],"member":"1968","published-online":{"date-parts":[[2020,7,21]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1043","DOI":"10.1016\/j.prostr.2017.07.067","article-title":"Toughness tests on steels from old railway bridges","volume":"5","year":"2017","journal-title":"Procedia Struct. Integr."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"1019","DOI":"10.1016\/j.prostr.2017.07.160","article-title":"The brittle fracture behaviour of old mild steels","volume":"5","author":"Sieber","year":"2017","journal-title":"Procedia Struct. Integr."},{"key":"ref_3","doi-asserted-by":"crossref","unstructured":"Lesiuk, G., Correia, J.A.F.O., Krechkovska, H.V., Pekalski, G., Jesus, A.M.P., and de Student, O. (2021). Degradation Theory of Long Term Operated Materials. Structural Integrity Series, Springer Nature. in press.","DOI":"10.1007\/978-3-030-43710-7"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"786","DOI":"10.1016\/j.acme.2015.06.004","article-title":"The mechanical properties and the microstructural degradation effect in an old low carbon steels after 100-years operating time","volume":"15","author":"Lesiuk","year":"2015","journal-title":"Arch. Civ. Mech. Eng."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"82","DOI":"10.1007\/s11003-011-9371-z","article-title":"Aspects of structural degradation in steels of old bridges by means of fatigue crack propagation","volume":"47","author":"Lesiuk","year":"2011","journal-title":"Mater. Sci."},{"key":"ref_6","first-page":"169","article-title":"On the problem of strain localisation and fracture site prediction in materials with irregular geometry of interfaces","volume":"17","author":"Balokhonov","year":"2019","journal-title":"Facta Univ. Ser. Mech. Eng."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"296","DOI":"10.1108\/IJSI-10-2017-0056","article-title":"Features of the microstructural and mechanical degradation of long term operated mild steel","volume":"9","author":"Krechkovska","year":"2018","journal-title":"Int. J. Struct. Integr."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"861","DOI":"10.1007\/s11003-017-0032-8","article-title":"Corrosion degradation of steel of long-Term operated gas pipeline elbow with large-scale delamination","volume":"52","author":"Zvirko","year":"2017","journal-title":"Mater. Sci."},{"key":"ref_9","unstructured":"Szata, M., Lesiuk, G., and P\u0119kalski, G. (2009). Assessment of degrading processes progress in the old brigde steel in terms of fracture mechanics-Part one-The investigation of possibilities. Logistyka, Available online: http:\/\/yadda.icm.edu.pl\/yadda\/element\/bwmeta1.element.baztech-article-BUS6-0035-0025."},{"key":"ref_10","unstructured":"Standard Test Method for Measurement of Fracture Toughness, American Society for Testing and Materials. ASTM E1820."},{"key":"ref_11","unstructured":"Wroc\u0142aw, D.D. (2013). Modern constructional steels. Maintenance Strategy of Surface Mining Machines and Facilities with High Technical Degradation Levels, Publishing House of Wroc\u0142aw University of Technology."},{"key":"ref_12","doi-asserted-by":"crossref","unstructured":"Konat, \u0141., and P\u0119kalski, G. (2020). Overview of Materials Testing of Brown-Coal Mining Machines (Years 1985\u20132017). Mining Machines and Earth-Moving Equipment, Springer.","DOI":"10.1007\/978-3-030-25478-0_2"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"198","DOI":"10.1016\/j.prostr.2019.08.027","article-title":"Mean Stress Effect and Fatigue Crack Closure in Material from Old Bridge Erected in the Late 19th Century","volume":"17","author":"Lesiuk","year":"2019","journal-title":"Procedia Struct. Integr."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"381","DOI":"10.1108\/IJSI-08-2017-0050","article-title":"Fatigue Crack Growth Rate in CFRP Reinforced Constructional Old Steel","volume":"9","author":"Lesiuk","year":"2018","journal-title":"Int. J. Struct. Integr."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"175","DOI":"10.1016\/j.engfracmech.2017.05.002","article-title":"Mixed Mode (I+II) Fatigue Crack Growth in Puddle Iron","volume":"185","author":"Lesiuk","year":"2017","journal-title":"Eng. Fract. Mech."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"295","DOI":"10.1016\/0263-8223(96)00043-8","article-title":"Modelling of a Cracked Metallic Structure with Bonded Composite Patch Using the Three Layer Technique","volume":"35","author":"Naboulsi","year":"1996","journal-title":"Compos. Struct."},{"key":"ref_17","unstructured":"(2019). Sika Product Data Sheet: Sika\u00ae CarboDur\u00ae E-1014, Sika Sp. z. o.o."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"342","DOI":"10.1016\/j.engstruct.2011.09.001","article-title":"Repairing Wood Beams under Bending Using Carbon-Epoxy Composites","volume":"34","author":"Dourado","year":"2012","journal-title":"Eng. Struct."},{"key":"ref_19","doi-asserted-by":"crossref","unstructured":"Krueger, R. (2004). Virtual Crack Closure Technique: History, Approach, and Applications. Appl. Mech. Rev., 109\u2013143.","DOI":"10.1115\/1.1595677"},{"key":"ref_20","unstructured":"Woodhead, P. (2014). Rehabilitation of Metallic Civil Infrastructure Using Fiber-Reinforced Polymer (FRP) Composites, Elsevier."},{"key":"ref_21","unstructured":"(2015). Standard Test Method for Measurement of Fatigue Crack Growth Rates, American Society for Testing and Materials. ASTM E 647."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"67","DOI":"10.1680\/jenhh.16.00020","article-title":"Understanding the Behaviour of Wrought-Iron Riveted Assemblies: Manufacture and Testing in France","volume":"Volume 170","author":"Sire","year":"2017","journal-title":"Proceedings of the Institution of Civil Engineers-Engineering History and Heritage"},{"key":"ref_23","unstructured":"Zvirko, O., Nykyforchyn, H., Szata, M., Kutnyi, A., and Lesiuk, G. (2014). Corrosion degradation of old structures steels. XII International Conference \u201cProblems of Corrosion and Corrosion Protection of Structural Materials\u201d, Corrosion."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"674","DOI":"10.1007\/s11003-018-0123-1","article-title":"A procedure of laboratory degradation of structural steels","volume":"53","author":"Kret","year":"2018","journal-title":"Mater. Sci."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"126","DOI":"10.1007\/s11003-008-9051-9","article-title":"Corrosion and electrochemical properties of the steel of exploited oil tanks in bottom water","volume":"44","author":"Zvirko","year":"2008","journal-title":"Mater. 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