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Corman, Rebecca Eve 2015-07-22T22:17:48Z 2015-07-22T22:17:48Z 2015-05 2015-04-30 In this thesis, we seek to outline a methodology to enable engineering design based on rheologically complex materials. Traditionally, engineers choose hard materials or simple fluids for design. Complex materials (soft solids and non-Newtonian fluids) greatly increase the design space. Additionally, these materials add functionality (viscoelasticity, nonlinearity) that can achieve diverse performance objectives (user experience, vibration isolation, etc.). Here, we focus on a specific rheological complexity: viscoelasticity. Viscoelasticity introduces a material time dependence, often referred to as memory. The design process with these materials is presented as a multi-step inverse problem that begins with identifying optimal target rheology to meet specified performance objectives. This target rheology remains material agnostic, to be achieved through the design of the viscoelastic material microstructure. A survey of material structures to achieve viscoelastic timescales is reviewed, outlining several design strategies for viscoelastic target properties. Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2015-07-22 without embargo terms The student, Rebecca Corman, accepted the attached license on 2015-04-29 at 14:59. The student, Rebecca Corman, submitted this Thesis for approval on 2015-04-29 at 15:00. This Thesis was approved for publication on 2015-04-30 at 15:13. DSpace SAF Submission Ingestion Package generated from Vireo submission #8123 on 2015-07-22 at 10:34:07 Made available in DSpace on 2015-07-22T22:17:48Z (GMT). No. of bitstreams: 2 CORMAN-THESIS-2015.pdf: 11219360 bytes, checksum: ee48971560d6eb1886b4f25cbb691270 (MD5) LICENSE.txt: 4211 bytes, checksum: 9a5d71d8634763f9581240d952f8bf8a (MD5) Previous issue date: 2015-04-30 application/pdf http://hdl.handle.net/2142/78509 en Copyright 2015 Rebecca Corman rheology viscoelasticity design optimization Enabling design with rheological complexity: intuition and optimization of viscoelastic materials text text 2015-5 Mechanical Sci & Engineering Mechanical Engineering University of Illinois at Urbana-Champaign Thesis M.S.