0
research-article

Multiscale Topology Optimization for Additively Manufactured Objects

[+] Author and Article Information
John Steuben

Member of ASME, Computational Multiphysics Systems Laboratory, Center of Materials Physics and Technology, Naval Research Laboratory, Washington DC, 20375, USA
john.steuben@nrl.navy.mil

Athanasios P. Iliopoulos

Member of ASME, Computational Multiphysics Systems Laboratory, Center of Materials Physics and Technology, Naval Research Laboratory, Washington DC, 20375, USA
athanasios.iliopoulos@nrl.navy.mil

John Michopoulos

Fellow of ASME, Computational Multiphysics Systems Laboratory, Center of Materials Physics and Technology, Naval Research Laboratory, Washington DC, 20375, USA
john.michopoulos@nrl.navy.mil

1Corresponding author.

ASME doi:10.1115/1.4039312 History: Received October 15, 2017; Revised January 23, 2018

Abstract

The precise control of mass and energy deposition associated with Additive Manufacturing (AM) processes enables the topological specification and realization of how space can be filled by material in multiple scales. Consequently, AM can be pursued in a manner that is optimized such that fabricated objects can best realize performance specifications. In the present work, we propose a computational multiscale method that utilizes the unique meso-scale structuring capabilities of implicit slicers for AM, in conjunction with existing topology optimization tools for the macro-scale, in order to generate structurally optimized components. The use of this method is demonstrated on two example objects including a load bearing bracket and a hand tool. This paper also includes discussion concerning the applications of this methodology, its current limitations, a reimagining of the additive manufacturing digital thread and the future work required to enable its widespread use.

Copyright (c) 2018 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In