Full Content is available to subscribers

Subscribe/Learn More  >

Synthesis Methods for Lightweight Lattice Structures

[+] Author Affiliations
Gregory C. Graf, Jane Chu, David W. Rosen

Georgia Institute of Technology, Atlanta, GA

Sarah Engelbrecht

Northrup-Grumman, Newport News, VA

Paper No. DETC2009-86993, pp. 579-589; 11 pages
  • ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 2: 29th Computers and Information in Engineering Conference, Parts A and B
  • San Diego, California, USA, August 30–September 2, 2009
  • Conference Sponsors: Design Engineering Division and Computers in Engineering Division
  • ISBN: 978-0-7918-4899-9 | eISBN: 978-0-7918-3856-3
  • Copyright © 2009 by ASME


Lattice structures are a type of cellular material (e.g., honeycombs, foams, trusses) that can achieve very high stiffness-to-weight and strength-to-weight ratios. When loaded, elements in lattice structures typically stretch and compress, rather than bend, enabling their advantageous performance characteristics. We desire efficient algorithms for searching the large, complex design spaces associated with lattice structure design. In this paper, we present a problem formulation for lattice structure design, using cross-section sizes as variables, and three proposed solution methods. The methods are Particle Swarm Optimization (PSO), Levenburg-Marquardt (LM) algorithm based on a least-squares minimization formulation, and a new non-iterative size matching and scaling method based on results of a finite-element analysis, which are evaluated for their capabilities in achieving light weight and high stiffness. Two-dimensional and 3-D examples are used to test the solution methods.

Copyright © 2009 by ASME



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

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 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