Design, fabrication, and testing of optimized flexible cylinders

David Ryan Seifert, Geoffrey Frank, Wesley A. Chapkin, Jeffrey Baur

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

Abstract

This article presents the design, fabrication, and testing of multimaterial articulating cylinders with optimized periodic substructures. Genetic Optimization (NSGA-II) is used to obtain promising archetypes, which are rapidly post-processed, additively manufactured, and tested for bending and torsional rigidity. Objectives are set as structural stiffness in torsion and bending, subject to stress and maximum radial displacement constraints. A multimaterial printer allows for two material (stiff and compliant) design. Pareto Optimal structures are down selected and post processed into manufacturable designs, which are then printed. Bending and torsional rigidities are obtained via a series of static load tests, in which a known load is applied and a bending or twisting angle is measured. Design archetypes are compared via load-rotation curves. Performance in both loading environments is related back to the characteristic substructure.

Original languageEnglish (US)
Title of host publicationASME 2019 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2019
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791859131
DOIs
StatePublished - 2019
Externally publishedYes
EventASME 2019 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2019 - Louisville, United States
Duration: Sep 9 2019Sep 11 2019

Publication series

NameASME 2019 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2019

Conference

ConferenceASME 2019 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2019
Country/TerritoryUnited States
CityLouisville
Period9/9/199/11/19

ASJC Scopus subject areas

  • Biomaterials
  • Civil and Structural Engineering

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