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Optimizing the microstructure of dissipative materials

Authors
Publication Date
Keywords
  • The Aim Of This Work Is To Present A Method To Design Material Microstructures With High Dissipation
  • In Order To Compute The Macroscopic Energy Dissipation In Periodic Structures
  • We Focus Both On Capturing The Physical Dissipation Mechanism And To Find The Effective Macroscopic
  • The Effective Elastic Material Properties Of A Periodic Structure Can Be Found Numerically Using Hom
  • G
  • (Guedes And Kikuchi
  • 1990)
  • For Dissipative Materials A Quasi-Static Approach Can Be Used To Find The Homogenized Complex Elasti
  • And Thereby The Material’S Loss Factor
  • However
  • Only For Large Wave Lengths (Small Wave Numbers) And Constant Material Parameters (Andreasen Et Al
  • 2012)
  • An Alternative Way To Determine The Material’S Loss Factor Is To Consider The Material’S Band Di
  • 1992)
  • From Which The Loss Factor Can Be Deduced
  • Designs Obtained By E
  • G
  • Maximizing The Material’S Loss Factor For A Given Frequency Range Will Be Presented
  • The Method Will Be Demonstrated Both Using Base Cells Consisting Of Continuum Elements And Base Cell
  • The Beam Element Base Cell Is Included With Inspiration From Experimental Results In (Schaedler
  • 2011)
  • Where A Highly Energy Absorbing Material
  • Constructed From Structural Elements With A Small Cross Sectional Area But Large Area Moment Of Iner
  • Is Presented
  • Furthermore
  • The Applicability Of Multiscale Finite Element Methods (Efendiev
  • 2009) To Account For Boundary Conditions Of Periodic Structures That Possess A Finite Extent Is Inve
Disciplines
  • Design
  • Mathematics

Abstract

Publications mainResearchArea.mainResearchArea persons[0].person.id persons[0].person.employeeId persons[0].personRole persons[0].firstName persons[0].lastName persons[0].organisations persons[1].person.id persons[1].person.employeeId persons[1].personRole persons[1].firstName persons[1].lastName persons[1].organisations persons[2].person.id persons[2].person.employeeId persons[2].personRole persons[2].firstName persons[2].lastName persons[2].organisations organisations[0].organisation.id organisations[0].organisation.organisation organisations[1].organisation.id organisations[1].organisation.organisation documents[0].id documents[0].documents workflowInformations[0] publicationStatus.publicationStatus bibliographicalNote.text[en_GB] publicationDate.year title typeClassification.typeClassification owner.id owner.owner abstract.text[en_GB] id creator uuid created modified modifiedBy remoteOrigin sourceLicensesDismissed Source: dtu visibility language.language acceptedDuplicate submissionYear publicationCategory.publicationCategory peerReview markedForRevalidation event.id event.event Technical/natural sciences 1726340 31746 Author Erik Andreassen Department of Mechanical Engineering, Solid Mechanics 2182081 6456 Author Boyan Stefanov Lazarov Department of Mechanical Engineering, Solid Mechanics 2200992 1060 Author Jakob Søndergaard Jensen Department of Mechanical Engineering, Solid Mechanics 2424 Department of Mechanical Engineering 2436 Solid Mechanics 51556414 optimizingTheMicrostructureOfDissipativeMaterials.pdf Publishers version. Public - No restriction 41 KB validated Published Presented in the minisymposium "Material Architecture Design" at the conference. 2012 Optimizing the microstructure of dissipative materials Paper 2424 Department of Mechanical Engineering The aim of this work is to present a method to design material microstructures with high dissipation using topology optimization. In order to compute the macroscopic energy dissipation in periodic structures, we focus both on capturing the ph

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