0

Full Content is available to subscribers

Subscribe/Learn More  >

Homogenization of Mechanical Properties for Additively Manufactured Periodic Lattice Structures Considering Joint Stiffening Effects

[+] Author Affiliations
Sang-in Park, David W. Rosen

Georgia Institute of Technology, Atlanta, GA

Paper No. DETC2016-59730, pp. V01AT02A036; 10 pages
doi:10.1115/DETC2016-59730
From:
  • ASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 1A: 36th Computers and Information in Engineering Conference
  • Charlotte, North Carolina, USA, August 21–24, 2016
  • Conference Sponsors: Design Engineering Division, Computers and Information in Engineering Division
  • ISBN: 978-0-7918-5007-7
  • Copyright © 2016 by ASME

abstract

This paper presents a homogenization approach for estimating the mechanical properties of periodic lattice structures; it is based on semi-rigid joint frame elements, and it takes into account joint stiffening effects. Geometrical degradation that arises from the additive manufacturing process is considered and integrated into a homogenization procedure that uses structural element parameters derived from a frame element with semi-rigid joints. The effective values of the structural parameters are calculated from a novel as-fabricated model describing an additively fabricated strut and are incorporated into proposed semi-rigid frame elements. The semi-rigid joint frame element is integrated into a discrete homogenization process. This paper reports the results of parametric studies that compare the effective structural parameters and the estimated mechanical properties to study the impacts of joints and geometric degradation due to additive manufacturing. The results of the proposed approach are compared with previous homogenization approaches, and show that the proposed method provides more accurate estimates.

Copyright © 2016 by ASME

Figures

Tables

Interactive Graphics

Video

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

NOTE:
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