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oai:www.ideals.illinois.edu:2142/105841 2023-07-11 col_2142_5131 col_2142_14787 com_2142_5130 com_2142_9630 com_2142_234

Kersh, Mariana Bodapati, Vineeth 2019-11-26T20:49:34Z 2019-11-26T20:49:34Z 2021-11-27T10:15:30Z 2019-07-19 2019-08 The injury mechanics and strain distribution in the glenohumeral capsule at a particular joint angle have been studied extensively. However, there is a lack of information on the strain distributions in the capsule under complex joint angles, i.e, during the activities of daily living (ADL). To investigate the mechanical response of the capsule under the kinematics of the forward reach, a subject specific finite element model of the glenohumeral joint with the capsule was developed. Since the mechanical properties of the capsule under multiaxial loading were unknown we proposed an inverse finite elements based optimization routine to determine the material coefficients of the capsule. Several constitutive material models were evaluated to identify feasibility of convergence for the complex loading associated with physiological tasks. We established limits for the material coefficients of the Mooney-Rivlin model used to model the capsule. The Mooney-Rivlin model with the material coefficients C1 = 6, C10 = 6.5, and D1 = 0.12 converged for around 50% of the cycle. The results also suggest that the peak strain occurred on the inferior aspect of both the anterior and posterior side of the capsule. This work serves as the basis for future comparisons of material models and can be extended to other activities of daily living. Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2021-08-01 The student, Vineeth Bodapati, accepted the attached license on 2019-07-18 at 20:31. The student, Vineeth Bodapati, submitted this Thesis for approval on 2019-07-18 at 20:40. This Thesis was approved for publication on 2019-07-19 at 11:25. DSpace SAF Submission Ingestion Package generated from Vireo submission #14386 on 2019-11-26 at 13:06:21 Made available in DSpace on 2019-11-26T20:49:34Z (GMT). No. of bitstreams: 2 BODAPATI-THESIS-2019.pdf: 4325109 bytes, checksum: 45dad2318f1da51d69b3a2ab6d7525a5 (MD5) LICENSE.txt: 4213 bytes, checksum: 878d0508550aa0a644edfcc74a55ce0c (MD5) Previous issue date: 2019-07-19 Embargo set by: Seth Robbins for item 112986 Lift date: 2021-11-26T20:49:41Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system U of I Only Restriction Lifted for Item 112986 on 2021-11-27T10:15:30Z. application/pdf http://hdl.handle.net/2142/105841 en Copyright 2019 Vineeth Bodapati Finite Element Modelling Biomechanics Soft Tissue Modelling Strain analysis in glenohumeral capsule through finite element modelling text text Mechanical Sci & Engineering Mechanical Engineering University of Illinois at Urbana-Champaign Thesis M.S.