Finite-life fatigue constraints in 2D topology optimization of continua

Publikation: Forskning - peer reviewKonferenceartikel i proceeding

Abstrakt

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.
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Detaljer

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.
OriginalsprogEngelsk
TitelProceedings of the 30th Nordic Seminar on Computational Mechanics
RedaktørerJan Høgsberg, Niels Leergaard Pedersen
Antal sider4
Publikationsdatookt. 2017
Sider149-152
ISBN (Trykt)978-87-7475-491-6
StatusUdgivet - okt. 2017
PublikationsartForskning
Peer reviewJa
Begivenhed30th Nordic Seminar on Computational Mechanics - Technical University of Denmark Anker Engelunds Vej 1, Bygning 101A 2800 Kgs. , Lyngby, Danmark
Varighed: 25 okt. 201727 okt. 2017
Konferencens nummer: 30

Konference

Konference30th Nordic Seminar on Computational Mechanics
Nummer30
LokationTechnical University of Denmark Anker Engelunds Vej 1, Bygning 101A 2800 Kgs.
LandDanmark
ByLyngby
Periode25/10/201727/10/2017

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