PSI - Issue 53

Available online at www.sciencedirect.com Structural Integrity Procedia 00 (2022) 000–000 Available online at www.sciencedirect.com ScienceDirect

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 53 (2024) 151–160

© 2023 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 ESIAM23 chairpersons Abstract Additively manufactured metallic structures offer enormous lightweight potential, which must be exploited for components subjected to cyclic loads. To ensure an applicable fatigue approach even considering service loading conditions, the influence on the resulting component related properties must be taken into account. Due to the large number of challenges of additively manufactured structures, e.g. regions with different local microstructures including defect distributions, conventional design methods can reach their limits, at least from an economic point of view. Representative Structural Elements can help to reduce the complexity of the design. For this purpose, the Representative Structural Elements are analyzed with the help of the cyclic stress strain behavior and the fatigue life curve in different levels of details. © 2023 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 ESIAM23 chairpersons Keywords: Structural durability; Representative Structural Elements; cyclic stress-strain behavior, notch effects 1. Introduction The additively manufacturing of metallic structures offers an enormous strength and thus also lightweight construction potential. Provided suitable tools are available with which this potential can be exploited at an early stage in the design process. Third European Conference on the Structural Integrity of Additively Manufactures Materials (ESIAM23) Enhancing the fatigue life approach by the usage of Representative Structural Elements Rainer Wagener*, Marvin Kiel Fraunhofer Institute for Structural Durability and System Reliability LBF, Bartningstr. 47, 64289 Darmstadt, Germany

* Corresponding author. Tel.: +49 6151 705 444; fax: +49 6151 705 214. E-mail address: rainer.wagener@lbf.fraunhofer.de

2452-3216 © 2023 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 ESIAM23 chairpersons

2452-3216 © 2023 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 ESIAM23 chairpersons 10.1016/j.prostr.2024.01.019