Topology optimization of rigid interlocking assemblies
Name
AharoniBacheletCarstensen.pdf
Description
Accepted version
Size
2.28 MB
Format
Adobe PDF
Checksum (MD5)
30abaac1c179f7450c2a380512bafd92
Author(s)
Aharoni, Lior
Bachelet, Ido
Carstensen, Josephine V
Date Issued
2021
Journal
Computers and Structures
Publisher
Elsevier BV
Citation
Aharoni, Lior, Bachelet, Ido and Carstensen, Josephine V. 2021. "Topology optimization of rigid interlocking assemblies." Computers and Structures, 250.
Version
Author's final manuscript
Abstract
This paper presents a new density-based topology optimization algorithm for the design of constructible rigid interlocking assemblies with multiple components. The multiple components or structural parts are introduced by having multiple sets of design variables: one for each component. These are filtered separately and combined to create a density field for each structural part. In addition, the framework uses a series of filtering operations to ensure sufficient blocking of rigid body motion and sufficient assemblability. Since this type of assembly is frequently constructed both with and without the use of mortars or adhesives, the structural performance is simplified into a set of static load cases in which the inter-component interactions are estimated. The framework is demonstrated on design examples with two and four components and found to achieve interlocking, constructible assemblies. Crisp interface boundaries and interaction loads along the component interfaces are observed for all examples. Additionally, the two-component solutions are analyzed and compared using computational contact analyses to investigate the influence of the user defined parameters. Finally, an extension is suggested that allows the inclusion of a void phase.
MIT Department
Massachusetts Institute of Technology. Department of Civil and Environmental Engineering
Massachusetts Institute of Technology. Media Laboratory
Terms of Use
Creative Commons Attribution-NonCommercial-NoDerivs License
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1016/J.COMPSTRUC.2021.106521
