{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/110520"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/110520","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Finite element modeling of mechanical properties of bone and bioinspired composites with stiff and soft continuous compared to discontinuous phases","abstract":"This Dissertation was approved for publication on 2021-04-23 at 13:33.","abstract_html":"This Dissertation was approved for publication on 2021-04-23 at 13:33.","abstract_has_math":false,"creators":["Sabet, Fereshteh Alsadat"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Theoretical & Applied Mechans","degree_department":null,"school":null,"contributors":["Jasiuk, Iwona","Kersh, Marianna","McKittrick, Joanna","Wagoner-Johnson, Amy"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2021,"date_issued":"2021-09-17T01:11:07Z","date_published":"2021-09-17T01:11:07Z","updated_at":"2026-07-22T22:24:50Z","subjects":["Finite element simulation","trabecular bone","composite","Bone","3D-printing"],"languages":["en"],"rights":["Copyright 2021 Fereshteh Alsadat Sabet"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/110520","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Jasiuk, Iwona","Kersh, Marianna","McKittrick, Joanna","Wagoner-Johnson, Amy"]},{"key":"dc:creator","label":"Author","values":["Sabet, Fereshteh Alsadat"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2021-09-17T01:11:07Z","2021-04-23","2021-05"]},{"key":"dc:type","label":"Dc Type","values":["text","Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Theoretical & Applied Mechans"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Finite element simulation","trabecular bone","composite","Bone","3D-printing"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2021 Fereshteh Alsadat Sabet"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/110520"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["This Dissertation was approved for publication on 2021-04-23 at 13:33.","DSpace SAF Submission Ingestion Package generated from Vireo submission #16444 on 2021-09-16 at 16:44:12","Made available in DSpace on 2021-09-17T01:11:07Z (GMT). No. of bitstreams: 2 SABET-DISSERTATION-2021.pdf: 34734102 bytes, checksum: 2256ebef4ef93685a972a42273dfcd75 (MD5) LICENSE.txt: 4220 bytes, checksum: 3aee051f7ad138ee9aa6b9e5a0e240b8 (MD5) Previous issue date: 2021-04-23","In this dissertation, the aim is to understand better mechanical properties and arrangement of phases in bone as biological composite material and study the effect of the topology of phases on mechanical properties of 3D-printed bio-inspired composites as well as scale and size effects. In the first part of this dissertation, bone is modeled at the mesoscale (trabecular bone) to shed light on which constitutive law can better describe the behavior of bone at this scale. Finite element models were built from micro-computed tomography images of trabecular bone that allow a precise realization of the geometry. The effect of using different plasticity formulations at the tissue level on the overall mechanical behavior was studied as well as the local response. Also, the effect of volume fraction of bone tissue on the mechanical response of trabecular bone was investigated. Simulations of trabecular bone are highly challenging due to its complex structure. Several types of nonlinearities in the problem result in the need for using an explicit solver instead of an implicit solver for some cases. Although both implicit and explicit methods have been used in the literature, a comparative study on both methods' outcomes is of high interest for the bone modeling community. Thus, a comparison of the effect of using implicit and explicit solvers on the results of modeling trabecular bone has been performed. In the second part, the influence of geometrical arrangements of phases on the overall mechanical properties of bio-inspired composites was investigated. Two-phase composites with stiff and soft phases and different phase geometries, including an interpenetrating phase composite with two continuous phases, a matrix-inclusion composite with a continuous and a discontinuous phase, and a discontinuous phase composite where both phases are discontinuous, were studied. These different types of composites were 3D printed using two polymers: VeroClear (stiff) and TangoBlackPlus (soft). Their mechanical performance was studied both experimentally, using compression testing and digital image correlation, and numerically by a finite element analysis. These composite types were also simulated using properties of bone constituents (collagen and hydroxyapatite) to better understand the nanostructure of bone and its mechanical properties. Scale and size effects were also investigated in these composites, and the results from mechanical testing were compared with finite element modeling results.","Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2021-09-16 without embargo terms","The student, Fereshteh Alsadat Sabet, accepted the attached license on 2021-04-20 at 13:14.","The student, Fereshteh Alsadat Sabet, submitted this Dissertation for approval on 2021-04-20 at 13:27."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Finite element modeling of mechanical properties of bone and bioinspired composites with stiff and soft continuous compared to discontinuous phases"]}]}],"canonical_facts":{"dc:contributor":["Jasiuk, Iwona","Kersh, Marianna","McKittrick, Joanna","Wagoner-Johnson, Amy"],"dc:creator":["Sabet, Fereshteh Alsadat"],"dc:date":["2021-09-17T01:11:07Z","2021-04-23","2021-05"],"dc:description":["This Dissertation was approved for publication on 2021-04-23 at 13:33.","DSpace SAF Submission Ingestion Package generated from Vireo submission #16444 on 2021-09-16 at 16:44:12","Made available in DSpace on 2021-09-17T01:11:07Z (GMT). No. of bitstreams: 2 SABET-DISSERTATION-2021.pdf: 34734102 bytes, checksum: 2256ebef4ef93685a972a42273dfcd75 (MD5) LICENSE.txt: 4220 bytes, checksum: 3aee051f7ad138ee9aa6b9e5a0e240b8 (MD5) Previous issue date: 2021-04-23","In this dissertation, the aim is to understand better mechanical properties and arrangement of phases in bone as biological composite material and study the effect of the topology of phases on mechanical properties of 3D-printed bio-inspired composites as well as scale and size effects. In the first part of this dissertation, bone is modeled at the mesoscale (trabecular bone) to shed light on which constitutive law can better describe the behavior of bone at this scale. Finite element models were built from micro-computed tomography images of trabecular bone that allow a precise realization of the geometry. The effect of using different plasticity formulations at the tissue level on the overall mechanical behavior was studied as well as the local response. Also, the effect of volume fraction of bone tissue on the mechanical response of trabecular bone was investigated. Simulations of trabecular bone are highly challenging due to its complex structure. Several types of nonlinearities in the problem result in the need for using an explicit solver instead of an implicit solver for some cases. Although both implicit and explicit methods have been used in the literature, a comparative study on both methods' outcomes is of high interest for the bone modeling community. Thus, a comparison of the effect of using implicit and explicit solvers on the results of modeling trabecular bone has been performed. In the second part, the influence of geometrical arrangements of phases on the overall mechanical properties of bio-inspired composites was investigated. Two-phase composites with stiff and soft phases and different phase geometries, including an interpenetrating phase composite with two continuous phases, a matrix-inclusion composite with a continuous and a discontinuous phase, and a discontinuous phase composite where both phases are discontinuous, were studied. These different types of composites were 3D printed using two polymers: VeroClear (stiff) and TangoBlackPlus (soft). Their mechanical performance was studied both experimentally, using compression testing and digital image correlation, and numerically by a finite element analysis. These composite types were also simulated using properties of bone constituents (collagen and hydroxyapatite) to better understand the nanostructure of bone and its mechanical properties. Scale and size effects were also investigated in these composites, and the results from mechanical testing were compared with finite element modeling results.","Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2021-09-16 without embargo terms","The student, Fereshteh Alsadat Sabet, accepted the attached license on 2021-04-20 at 13:14.","The student, Fereshteh Alsadat Sabet, submitted this Dissertation for approval on 2021-04-20 at 13:27."],"dc:format":["application/pdf"],"dc:identifier":["http://hdl.handle.net/2142/110520"],"dc:language":["en"],"dc:rights":["Copyright 2021 Fereshteh Alsadat Sabet"],"dc:subject":["Finite element simulation","trabecular bone","composite","Bone","3D-printing"],"dc:title":["Finite element modeling of mechanical properties of bone and bioinspired composites with stiff and soft continuous compared to discontinuous phases"],"dc:type":["text","Thesis"],"thesis:degree_discipline":["Theoretical & Applied Mechans"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:24:50Z"}