Topology Optimization of Shape Memory Alloy Actuators using Element Connectivity Parametriztion

M Langelaar, GH Yoon, YY Kim, F van Keulen

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review


This paper presents the first application of topology optimization to the design of shape memory alloy actuators. Shape memory alloys (SMAs) exhibit strongly nonlinear, temperature-dependent material behavior. The complexity in the constitutive behavior makes the topology design of SMA structures intractable by the conventional element density-based topology optimization. Therefore, in the present study, the recently developed element connectivity parameterization (ECP) formulation is applied, which offers important advantages for complex nonlinear topology optimization problems. A history-independent constitutive model of SMAs is employed which allows efficient adjoint sensitivity analysis. The effectiveness of the proposed technique is illustrated by several numerical examples.
Original languageUndefined/Unknown
Title of host publicationProceedings 6th World Congress of Structural and Multidisciplinary Optimization
Editors Herskovits, J., Mazorche, S., Canelas, A.
Place of PublicationRio de Janeiro, Brazil
Number of pages10
ISBN (Print)85-285-0070-5
Publication statusPublished - 2006
Event6th World Congress of Structural and Multidisciplinary Optimization - Rio de Janeiro, Brazil
Duration: 30 May 20053 Jun 2005

Publication series



Conference6th World Congress of Structural and Multidisciplinary Optimization


  • conference contrib. refereed
  • Conf.proc. > 3 pag

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