{"title":"Concurrent optimisation of structural topology and fibre paths for 3D printing of continuous fibre composites based on chain primitive projection","authors":"Shuai Wang , Jie Liu , Zhelong He , Dongmin Yang","doi":"10.1016/j.compositesa.2024.108333","DOIUrl":null,"url":null,"abstract":"<div><p>This study proposes a novel topology optimisation method based on the Geometry Projection Topology Optimisation method (GPTO) with the consideration of manufacturing constraints for the 3D printing of continuous fibre reinforced polymer composite structures. The proposed method uses connecting bars in chains to represent the continuous fibre filaments in the composite structure, as opposed to the use of separate bars as primitives. Thus, the method is termed as Chain Projection Topology Optimisation (CPTO), in which the chain-like primitives are equivalent to clusters of real printing paths. The 3D printing paths can be acquired by splitting the primitives evenly, which simplified the printing path design procedure to a great extent. In addition, manufacturing constraints can be easily imposed on the primitives, making it superior to density-based topology optimisation methods. An MBB beam, a cantilever beam, and a bridge case are optimised to demonstrate the CPTO’s efficiency. It was found that the designs by CPTO possess comparable mechanical properties when compared to those by the Solid Orthotropic Material Penalization (SOMP) method while guaranteeing the composite structures are suitable for 3D printing and contain less microscopic defects in the printed fibre filaments.</p></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":null,"pages":null},"PeriodicalIF":8.1000,"publicationDate":"2024-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1359835X24003300/pdfft?md5=3bcdfd9f73042b87dd1d3c325cf47dee&pid=1-s2.0-S1359835X24003300-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Composites Part A: Applied Science and Manufacturing","FirstCategoryId":"1","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1359835X24003300","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MANUFACTURING","Score":null,"Total":0}
引用次数: 0
Abstract
This study proposes a novel topology optimisation method based on the Geometry Projection Topology Optimisation method (GPTO) with the consideration of manufacturing constraints for the 3D printing of continuous fibre reinforced polymer composite structures. The proposed method uses connecting bars in chains to represent the continuous fibre filaments in the composite structure, as opposed to the use of separate bars as primitives. Thus, the method is termed as Chain Projection Topology Optimisation (CPTO), in which the chain-like primitives are equivalent to clusters of real printing paths. The 3D printing paths can be acquired by splitting the primitives evenly, which simplified the printing path design procedure to a great extent. In addition, manufacturing constraints can be easily imposed on the primitives, making it superior to density-based topology optimisation methods. An MBB beam, a cantilever beam, and a bridge case are optimised to demonstrate the CPTO’s efficiency. It was found that the designs by CPTO possess comparable mechanical properties when compared to those by the Solid Orthotropic Material Penalization (SOMP) method while guaranteeing the composite structures are suitable for 3D printing and contain less microscopic defects in the printed fibre filaments.
期刊介绍:
Composites Part A: Applied Science and Manufacturing is a comprehensive journal that publishes original research papers, review articles, case studies, short communications, and letters covering various aspects of composite materials science and technology. This includes fibrous and particulate reinforcements in polymeric, metallic, and ceramic matrices, as well as 'natural' composites like wood and biological materials. The journal addresses topics such as properties, design, and manufacture of reinforcing fibers and particles, novel architectures and concepts, multifunctional composites, advancements in fabrication and processing, manufacturing science, process modeling, experimental mechanics, microstructural characterization, interfaces, prediction and measurement of mechanical, physical, and chemical behavior, and performance in service. Additionally, articles on economic and commercial aspects, design, and case studies are welcomed. All submissions undergo rigorous peer review to ensure they contribute significantly and innovatively, maintaining high standards for content and presentation. The editorial team aims to expedite the review process for prompt publication.