Abstract
Topology optimization of 2D continua with the objective of minimizing
the mass while considering finite-life fatigue constraint is considered. The structure is subjected to proportional variable-amplitude loading. The topology optimization problem is solved using the density approach. The fractions of fatigue damage are estimated using the stress-based Sines fatigue criterion and S − N curves, while the accumulated damage is estimated using Palmgren-Miner’s rule. The method is a natural extension of classical density-based topology optimization with static stress constraints, and thus utilizes many of the same methods. A benchmark example is presented.
the mass while considering finite-life fatigue constraint is considered. The structure is subjected to proportional variable-amplitude loading. The topology optimization problem is solved using the density approach. The fractions of fatigue damage are estimated using the stress-based Sines fatigue criterion and S − N curves, while the accumulated damage is estimated using Palmgren-Miner’s rule. The method is a natural extension of classical density-based topology optimization with static stress constraints, and thus utilizes many of the same methods. A benchmark example is presented.
| Original language | English |
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| Title of host publication | Proceedings of the 30th Nordic Seminar on Computational Mechanics |
| Editors | Jan Høgsberg, Niels Leergaard Pedersen |
| Number of pages | 4 |
| Publisher | DTU Mechanical Engineering |
| Publication date | Oct 2017 |
| Pages | 149-152 |
| ISBN (Print) | 978-87-7475-491-6 |
| Publication status | Published - Oct 2017 |
| Event | 30th Nordic Seminar on Computational Mechanics - Technical University of Denmark Anker Engelunds Vej 1, Bygning 101A 2800 Kgs. , Lyngby, Denmark Duration: 25 Oct 2017 → 27 Oct 2017 Conference number: 30 |
Conference
| Conference | 30th Nordic Seminar on Computational Mechanics |
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| Number | 30 |
| Location | Technical University of Denmark Anker Engelunds Vej 1, Bygning 101A 2800 Kgs. |
| Country/Territory | Denmark |
| City | Lyngby |
| Period | 25/10/2017 → 27/10/2017 |
| Series | Proceedings of the Nordic Seminar on Computational Mechanics, (NSCM) |
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| ISSN | 1652-8549 |