PSI - Issue 33

ScienceDirect Structural Integrity Procedia 00 (2019) 000–000 Structural Integrity Procedia 00 (2019) 000–000 Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceD rect Available online at www.sciencedirect.com ScienceDirect

www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia

Procedia Structural Integrity 33 (2021) 1065–1072

© 2021 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the IGF ExCo Abstract Pilot fatigue experiments of a stainless-steel IPE80 profile showed local bending at the top flange and a global stability loss. Therefore, in this paper we present a non-linear numerical study of such profile to achieve an optimal stress state and reduce the possible stability loss and to keep the stress distribution close to Euler-Bernoulli’s beam theory. This was assessed by reaching a tensile stress in the bottom flange less than the material’s yielding strength and by a varying span to the profile’s height and by varying the loading options from three-point bending to four-point bending. © 2021 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review Statement: Peer-review under responsibility of the scientific committee of the IGF ExCo Keywords: IPE profile; stainless steel; FEM; fatigue; 1. Introduction Owing to its unique combination of excellent corrosion resistance, durability, attractive appearance and favorable mechanical properties, stainless steel is increasingly being used in the construction industry. According to cost efficiency studies, the usage of certain stainless steel is the most beneficial in cases of bridges exposed to aggressive environmental conditions with heavy traffic volumes. It is possible to assess the cost efficiency through life cycle cost (LCC) analyses when used in bridge construction Daghash (2019). The difference between construction steel and Abstract Pilot fatigue experiments of a stainless-steel IPE80 profile showed local bending at the top flange and a global stability loss. There ore, in this pap r we pre ent a non-linear numerical study of such profile to achieve an optimal stress state and reduce the possible stability loss and to k ep he stress distribution c o e to Euler-Bern u li’s beam theory. This was a sess d by aching a ten ile stress in the bottom flange less han the material’s yi lding st ength and by a varying span to the profile’s height and by varying h loading op i ns rom three-poi t b nding to four-po t bending. © 2021 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review Statem nt: Peer-revi w under responsibility of th scientifi committee of the IGF ExCo K ywords: IPE profile; stainless steel; FEM; fatigue; 1. Introduction Owing to its unique combination of excellent corrosion resistance, durability, attractive appearance and favorable mechanical properties, stainless steel is incr asingly being u ed in the construc ion ndustry. Ac ording to cost effi ie cy studies, h u age of cer ain sta less tee is the mo t be eficial i cases f bri ges exposed to aggressive nviro mental conditions with heavy traff c volum s. It is possible to assess the cost e fic ency through life cycl cost (LCC) analyses when u ed in bridge construction Daghash (2019). Th diff rence between construct on steel and IGF26 - 26th International Conference on Fracture and Structural Integrity Finding the optimal stress state of a stainless-steel IPE profile for fatigue experiments Lucas Braet a , Tereza Juhászová b,c , Daniel Jindra c , Petr Miarka b,c *, Stanislav Seitl b,c IGF26 - 26th International Conference on Fracture and Structural Integrity Finding the optimal stress state of a stainless-steel IPE profile for fatigue experiments Lucas Braet a , Tereza Juhászová b,c , Daniel Jindra c , Petr Miarka b,c *, Stanislav Seitl b,c a Ghent University, Faculty of Engineering and Architecture, Jozef Plateaustraat 22 , Gent 9000, Belgium b Institute of Physics of Materials, Cz ch Aca emy of S iences, Žižkova 22, Brno 616 62, Czech Republic bc Faculty of Civil Engineering, Brno University of Technology, Veve ř í 331/95, Brno 02 00, Czech Republic a Ghent University, Faculty of Engineering and Architecture, Jozef Plateaustraat 22 , Gent 9000, Belgium b Institute of Physics of Materials, Czech Academy of Sciences, Žižkova 22, Brno 616 62, Czech Republic bc Faculty of Civil Engineering, Brno University of Technology, Veve ř í 331/95, Brno 602 00, Czech Republic

* Corresponding author. Tel.: +420-532-290-361. E-mail address: miarka@imp.cz * Corresponding author. Tel.: +420-532-290-361. E-mail address: miarka@imp.cz

2452-3216 © 2021 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review Statement: Peer-review under responsibility of the scientific committee of the IGF ExCo 2452-3216 © 2021 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review Statement: Peer-revi w under responsibility of the scientifi committee of the IGF ExCo

2452-3216 © 2021 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the IGF ExCo 10.1016/j.prostr.2021.10.118