{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,22]],"date-time":"2026-01-22T00:56:37Z","timestamp":1769043397648,"version":"3.49.0"},"reference-count":22,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2023,2,28]],"date-time":"2023-02-28T00:00:00Z","timestamp":1677542400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"FEDER and National Funds (FCT)","award":["PTDC\/EME-EME\/31307\/2017"],"award-info":[{"award-number":["PTDC\/EME-EME\/31307\/2017"]}]},{"name":"FEDER and National Funds (FCT)","award":["PTDC\/EME-EME\/7678\/2020"],"award-info":[{"award-number":["PTDC\/EME-EME\/7678\/2020"]}]},{"name":"FEDER and National Funds (FCT)","award":["C644864375-00000002"],"award-info":[{"award-number":["C644864375-00000002"]}]},{"name":"Plano de Recupera\u00e7\u00e3o e Resili\u00eancia (PRR), Rep\u00fablica Portuguesa","award":["PTDC\/EME-EME\/31307\/2017"],"award-info":[{"award-number":["PTDC\/EME-EME\/31307\/2017"]}]},{"name":"Plano de Recupera\u00e7\u00e3o e Resili\u00eancia (PRR), Rep\u00fablica Portuguesa","award":["PTDC\/EME-EME\/7678\/2020"],"award-info":[{"award-number":["PTDC\/EME-EME\/7678\/2020"]}]},{"name":"Plano de Recupera\u00e7\u00e3o e Resili\u00eancia (PRR), Rep\u00fablica Portuguesa","award":["C644864375-00000002"],"award-info":[{"award-number":["C644864375-00000002"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Metals"],"abstract":"<jats:p>Recently, a trend in fatigue testing related to increasing excitation frequencies during experiments has been observed. This tendency is a product of both necessity and available technological capabilities. Regarding the last, advances in control and excitation systems made it possible to perform tests at impressive frequencies, beyond the tenths of kHz. Performing fatigue tests much faster is indeed very motivating, representing less time and money spent. On the other hand, such high testing frequencies create some challenges, such as the requirement of measurement systems capable of working with high sample rates and excessive heat generation on the testing samples. The last one is especially critical for fatigue once the mechanical properties, such as the elasticity modulus and yield strength, are highly dependent on the temperature. Therefore, being able to predict and control the sample temperature during fatigue testing is essential. The main goal of the present work is to provide a formulation for estimating the heat generation and specimen temperature during high frequency testing, namely in the ultra-high cycle fatigue (UHCF) regime. Several metallic alloys and specimen geometries were tested, and the model results were compared with experimental temperature measurements. The developed model was able to properly characterize the temperature trend over time. In addition, a script was developed and made publicly available.<\/jats:p>","DOI":"10.3390\/met13030492","type":"journal-article","created":{"date-parts":[[2023,2,28]],"date-time":"2023-02-28T06:09:52Z","timestamp":1677564592000},"page":"492","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["A Predictive Methodology for Temperature, Heat Generation and Transfer in Gigacycle Fatigue Testing"],"prefix":"10.3390","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7352-8637","authenticated-orcid":false,"given":"Felipe","family":"Klein Fiorentin","sequence":"first","affiliation":[{"name":"Instituto de Ci\u00eancia e Inova\u00e7\u00e3o em Engenharia Mec\u00e2nica e Engenharia Industrial (INEGI), FEUP Campus, Rua Dr. Roberto Frias, n 400, 4200-465 Porto, Portugal"},{"name":"Faculdade de Engenharia, Universidade do Porto (FEUP), Rua Dr. Roberto Frias, 4200-465 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9848-9569","authenticated-orcid":false,"given":"Luis","family":"Reis","sequence":"additional","affiliation":[{"name":"Instituto Superior T\u00e9cnico (IST), Av. Rovisco Pais, 1049-001 Lisbon, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3553-6107","authenticated-orcid":false,"given":"Grzegorz","family":"Lesiuk","sequence":"additional","affiliation":[{"name":"Department of Mechanics, Materials and Biomedical Engineering, Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, PL 50-370 Wroclaw, Poland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0256-1488","authenticated-orcid":false,"given":"Ana","family":"Reis","sequence":"additional","affiliation":[{"name":"Instituto de Ci\u00eancia e Inova\u00e7\u00e3o em Engenharia Mec\u00e2nica e Engenharia Industrial (INEGI), FEUP Campus, Rua Dr. Roberto Frias, n 400, 4200-465 Porto, Portugal"},{"name":"Faculdade de Engenharia, Universidade do Porto (FEUP), Rua Dr. Roberto Frias, 4200-465 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1059-715X","authenticated-orcid":false,"given":"Ab\u00edlio","family":"de Jesus","sequence":"additional","affiliation":[{"name":"Instituto de Ci\u00eancia e Inova\u00e7\u00e3o em Engenharia Mec\u00e2nica e Engenharia Industrial (INEGI), FEUP Campus, Rua Dr. Roberto Frias, n 400, 4200-465 Porto, Portugal"},{"name":"Faculdade de Engenharia, Universidade do Porto (FEUP), Rua Dr. Roberto Frias, 4200-465 Porto, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2023,2,28]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Bathias, C., and Paris, P.C. 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