Topology optimization of geometrically nonlinear structures and compliant mechanisms

Tyler E. Bruns, Daniel A. Tortorelli

Research output: Contribution to conferencePaper

Abstract

Topology optimization of structures has become an area of rapidly increasing interest to researchers during the past decade. Most structural topology optimization problems assume a linear elastic response. This assumption is not valid for systems undergoing large deformation. The structural analysis here accommodates geometric and material nonlinearities, and its impact on the topology optimization is investigated. A well-posed regularized topology optimization problem is developed by introducing a Gaussian-weighted density measure. Topology results based on the linear and nonlinear elastic formulations are compared. The formulation of the structural design problem is then extended to design compliant mechanisms undergoing large displacements.

Original languageEnglish (US)
Pages1874-1882
Number of pages9
DOIs
StatePublished - Jan 1 1998
Event7th AIAA/USAF/NASA/ISSMO Symposium on Multidisciplinary Analysis and Optimization, 1998 - St. Louis, United States
Duration: Sep 2 1998Sep 4 1998

Other

Other7th AIAA/USAF/NASA/ISSMO Symposium on Multidisciplinary Analysis and Optimization, 1998
CountryUnited States
CitySt. Louis
Period9/2/989/4/98

ASJC Scopus subject areas

  • Aerospace Engineering
  • Mechanical Engineering

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    Bruns, T. E., & Tortorelli, D. A. (1998). Topology optimization of geometrically nonlinear structures and compliant mechanisms. 1874-1882. Paper presented at 7th AIAA/USAF/NASA/ISSMO Symposium on Multidisciplinary Analysis and Optimization, 1998, St. Louis, United States. https://doi.org/10.2514/6.1998-4950