Multiscale topology optimization for structures with tailored porous structured materials

Raghavendra Sivapuram, Peter D. Dunning, H. Alicia Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper introduces a new method for multiscale topology optimization, where the topology is optimized at two scales: the macroscale, where the structure is optimized, and the microscale, where the material is optimized. Thus, structure and material are optimized simultaneously. The method introduced in this paper can be used with any number of unique microstructures and solve a wide range of structural design problems. The problem is decomposed such that the computational demands can be maintained at a reasonable level by parallelization. Homogenization is used to compute the effective material properties of the microscale designs and a level-set topology optimization method is used at both scales. The proposed approach is demonstrated using minimum compliance and compliant mechanism design problems.

Original languageEnglish
Title of host publication57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624103926
DOIs
Publication statusPublished - Jan 2016
Event57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2016 - San Diego, United States
Duration: 4 Jan 20168 Jan 2016

Conference

Conference57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2016
CountryUnited States
CitySan Diego
Period4/01/168/01/16

Keywords

  • Level-set method
  • Material design
  • Multiscale
  • Topology optimization

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Architecture
  • Mechanics of Materials

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  • Cite this

    Sivapuram, R., Dunning, P. D., & Kim, H. A. (2016). Multiscale topology optimization for structures with tailored porous structured materials. In 57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference [0938] American Institute of Aeronautics and Astronautics Inc, AIAA. https://doi.org/10.2514/6.2016-0938