Optimal design of Wire-and-Arc Additively Manufactured I-beams for prescribed deflection

Bruggi, Matteo; Laghi, Vittoria; Trombetti, Tomaso

doi:10.24423/cames.469

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Tytuł artykułu

Optimal design of Wire-and-Arc Additively Manufactured I-beams for prescribed deflection

Autorzy

Bruggi Matteo , Laghi Vittoria , Trombetti Tomaso

Wybrane pełne teksty z tego czasopisma

http://cames.ippt.gov.pl/

Identyfikatory

DOI

10.24423/cames.469

Warianty tytułu

Języki publikacji

Abstrakty

Alloys fabricated by wire-and-arc additive manufacturing (WAAM) exhibit a peculiar anisotropy in their elastic response. As shown by recent numerical investigations concerning the optimal design of WAAM-produced structural components, the printing direction remarkably affects the stiffness of the optimal layouts, as well as their shape. So far, single-plate specimens have been investigated. In this contribution, the optimal design of WAAM-produced I-beams is addressed assuming that a web plate and two flat flanges are printed and subsequently welded to assemble the structural component. A formulation of displacement-constrained topology optimization is implemented to design minimum weight specimens resorting to a simplified two-dimensional model of the I-beam. Comparisons are provided addressing solutions achieved by performing topology optimization with (i) conventional isotropic stainless steel and with (ii) WAAM-produced orthotropic stainless steel at prescribed printing orientations. Lightweight solutions arise whose specific shape depends on the selected material and the adopted printing direction.

Słowa kluczowe

structural optimization topology optimization wire arc additive manufacturing I-beam orthotropic material additive manufacturing 3D printing

optymalizacja strukturalna optymalizacja topologii produkcja addytwna łuku drutowego dwuteownik materiał ortotropowy produkcja addytywna drukowanie 3D

Wydawca

Instytut Podstawowych Problemów Techniki PAN

Czasopismo

Computer Assisted Methods in Engineering and Science

Rocznik

2022

Tom

Vol. 29, no. 4

Strony

357--378

Opis fizyczny

Bibliogr. 44 poz., rys., tab.

Twórcy

autor

Bruggi Matteo

matteo.bruggi@polimi.it

Department of Civil and Environmental Engineering, Politecnico di Milano, 20133,Milano, Italy

autor

Laghi Vittoria

Department of Civil, Chemical, Environmental and Materials Engineering,University of Bologna, 40136, Bologna, Italy

autor

Trombetti Tomaso

Department of Civil, Chemical, Environmental and Materials Engineering,University of Bologna, 40136, Bologna, Italy

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).

Typ dokumentu

Bibliografia

Identyfikator YADDA

bwmeta1.element.baztech-b3254515-0bcb-43f1-8a44-eb44f3c778d9