A geometry projection method for designing and optimizing additively manufactured variable-stiffness composite laminates

Autor: Yogesh Gandhi, Julián Norato, Ana Pavlovic, Giangiacomo Minak
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Acta Polytechnica CTU Proceedings, Vol 48 (2024)
Druh dokumentu: article
ISSN: 2336-5382
DOI: 10.14311/APP.2024.48.0022
Popis: A method for designing laminates is presented using geometry projection to optimize the layout of additively manufactured variable-stiffness composite laminates. By considering fiberreinforced bars as geometric primitives, the geometry projection methodology is extended to include optimizing regions with intersecting load paths. This is achieved by utilizing a dual representation of bars, which considers the geometric parameters and the element-wise density field representation. The dual representation enables the combining and overlapping of bars, resulting in a localized orthotropic material response at overlapping regions that mitigates the transverse compliant response of fiberreinforced components. The proposed method’s effectiveness is demonstrated through minimizing the compliance of the Messerschmitt-Bölkow-Blohm beam problem, a well-known benchmark problem in topology optimization.
Databáze: Directory of Open Access Journals