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dc.contributor.advisorBertoldi, Katiaen_US
dc.contributor.advisorVlassak, Joosten_US
dc.contributor.advisorClarke, Daviden_US
dc.contributor.authorBabaee, Sahaben_US
dc.date.accessioned2017-09-08T14:43:29Z
dc.date.created2016-11en_US
dc.date.issued2016-09-07en_US
dc.date.submitted2016en_US
dc.identifier.citationBabaee, Sahab. 2016. Non-Linear Mechanics of Three-Dimensional Architected Materials; Design of Soft and Functional Systems and Structures. Doctoral dissertation, Harvard University, Graduate School of Arts & Sciences.en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:33840689
dc.description.abstractIn the search for materials with new properties, there have been significant advances in recent years aimed at the construction of architected materials whose behavior is governed by structure, rather than composition. Through careful design of the material's architecture, new mechanical properties have been demonstrated, including negative Poisson's ratio, high stiffness to weight ratio and mechanical cloaking. However, most of the proposed architected materials (also known as mechanical metamaterials) have a unique structure that cannot be recon figured after fabrication, making them suitable only for a specific task. This thesis focuses on the design of architected materials that take advantage of the applied large deformation to enhance their functionality. Mechanical instabilities, which have been traditionally viewed as a failure mode with research focusing on how to avoid them, are exploited to achieve novel and tunable functionalities. In particular I demonstrate the design of mechanical metamaterials with tunable negative Poisson ratio, adaptive phononic band gaps, acoustic switches, and reconfigurable origami-inspired waveguides. Remarkably, due to large deformation capability and full reversibility of soft materials, the responses of the proposed designs are reversible, repeatable, and scale independent. The results presented here pave the way for the design of a new class of soft, active, adaptive, programmable and tunable structures and systems with unprecedented performance and improved functionalitiesen_US
dc.description.sponsorshipEngineering and Applied Sciences - Engineering Sciencesen_US
dc.format.mimetypeapplication/pdfen_US
dc.language.isoenen_US
dash.licenseLAAen_US
dc.subjectEngineering, Mechanicalen_US
dc.subjectEngineering, Materials Scienceen_US
dc.subjectApplied Mechanicsen_US
dc.titleNon-Linear Mechanics of Three-Dimensional Architected Materials; Design of Soft and Functional Systems and Structuresen_US
dc.typeThesis or Dissertationen_US
dash.depositing.authorBabaee, Sahaben_US
dc.date.available2017-09-08T14:43:29Z
thesis.degree.date2016en_US
thesis.degree.grantorGraduate School of Arts & Sciencesen_US
thesis.degree.levelDoctoralen_US
thesis.degree.nameDoctor of Philosophyen_US
dc.type.materialtexten_US
thesis.degree.departmentEngineering and Applied Sciences - Engineering Sciencesen_US
dash.identifier.vireohttp://etds.lib.harvard.edu/gsas/admin/view/1204en_US
dc.description.keywordsArchitected Material; Mechanical Instability; Metamaterial; Wave Propagation; Tunability; Phononic Crystal; Auxetic Material; Reconfigurable Structure; Acoustic Waveguide; Soft Materialen_US
dash.author.emailsahabbabaee@gmail.comen_US
dash.contributor.affiliatedBabaee, Sahab


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