{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/117603"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/117603","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Additive manufacturing and experimental study of topology optimized structures with improved fracture performance","abstract":"Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-12-01","abstract_html":"Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-12-01","abstract_has_math":false,"creators":["Ahmed, Asad Farooq"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Civil Engineering","degree_department":null,"school":null,"contributors":["Zhang, Xiaojia Shelly"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2022,"date_issued":"2022-12","date_published":"2022-12","updated_at":"2026-07-22T22:24:56Z","subjects":["Fracture","Optimized Designs","Water Washable Resin","Standard Photopolymer Resin","Experimental Testing","Numerical Analysis"],"languages":["en","eng"],"rights":["Copyright 2022 Asad Ahmed"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/2142/117603","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Zhang, Xiaojia Shelly"]},{"key":"dc:creator","label":"Author","values":["Ahmed, Asad Farooq"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2022-12","2022-12-08"]},{"key":"dc:type","label":"Dc Type","values":["text","Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Civil Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"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":["Fracture","Optimized Designs","Water Washable Resin","Standard Photopolymer Resin","Experimental Testing","Numerical Analysis"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en","eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2022 Asad Ahmed"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://hdl.handle.net/2142/117603"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-12-01","The student, Asad Ahmed, accepted the attached license on 2022-12-07 at 12:41.","The student, Asad Ahmed, submitted this Thesis for approval on 2022-12-07 at 14:05.","This Thesis was approved for publication on 2022-12-08 at 10:19.","DSpace SAF Submission Ingestion Package generated from Vireo submission #18767 on 2023-04-12 at 11:37:22","This thesis focuses on additive manufacturing and experimental validation of optimized structures for improved fracture responses. In this thesis, five optimized designs are investigated from both fabrication and experimental validation perspectives using two dissimilar materials. This thesis first aims at exploring suitable materials to manufacture the optimized designs. Additive manufacturing was employed to fabricate optimized structures because of its ability to handle complex geometries. Micro stereolithography compatible materials, elegoo standard photopolymer (SP) and water washable (WW) resins, were identified as suitable because of the inherent advantage of isotropic printing in stereolithography. Material characterization of selected materials was done to finalize the mechanical properties, which include tensile strength, compressive strength, young’s modulus, Poisson ratio, and critical strain energy release rate. These properties were then employed in the numerical simulations to obtain results corresponding to each type of materials. Employing the chosen materials, the optimized designs are manufactured and experimentally tested for their fracture behaviors using the three-point bending setup. Finally, the experimental results are compared and studied with the results obtained from numerical simulations. The investigations and observations from the fabrication and experimental study contribute to our understanding of the following four areas (1) material characterization and experimental testing for resin materials, (2) various types of additive manufacturing and processes involved in the studied resin materials, (3) experimental validation of topology optimized designs, and (4) material behavior and variations associated with the resin specimen. This body of work could provide a guideline for material characterization and experimental validation of optimized designs."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Additive manufacturing and experimental study of topology optimized structures with improved fracture performance"]}]}],"canonical_facts":{"dc:contributor":["Zhang, Xiaojia Shelly"],"dc:creator":["Ahmed, Asad Farooq"],"dc:date":["2022-12","2022-12-08"],"dc:description":["Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-12-01","The student, Asad Ahmed, accepted the attached license on 2022-12-07 at 12:41.","The student, Asad Ahmed, submitted this Thesis for approval on 2022-12-07 at 14:05.","This Thesis was approved for publication on 2022-12-08 at 10:19.","DSpace SAF Submission Ingestion Package generated from Vireo submission #18767 on 2023-04-12 at 11:37:22","This thesis focuses on additive manufacturing and experimental validation of optimized structures for improved fracture responses. In this thesis, five optimized designs are investigated from both fabrication and experimental validation perspectives using two dissimilar materials. This thesis first aims at exploring suitable materials to manufacture the optimized designs. Additive manufacturing was employed to fabricate optimized structures because of its ability to handle complex geometries. Micro stereolithography compatible materials, elegoo standard photopolymer (SP) and water washable (WW) resins, were identified as suitable because of the inherent advantage of isotropic printing in stereolithography. Material characterization of selected materials was done to finalize the mechanical properties, which include tensile strength, compressive strength, young’s modulus, Poisson ratio, and critical strain energy release rate. These properties were then employed in the numerical simulations to obtain results corresponding to each type of materials. Employing the chosen materials, the optimized designs are manufactured and experimentally tested for their fracture behaviors using the three-point bending setup. Finally, the experimental results are compared and studied with the results obtained from numerical simulations. The investigations and observations from the fabrication and experimental study contribute to our understanding of the following four areas (1) material characterization and experimental testing for resin materials, (2) various types of additive manufacturing and processes involved in the studied resin materials, (3) experimental validation of topology optimized designs, and (4) material behavior and variations associated with the resin specimen. This body of work could provide a guideline for material characterization and experimental validation of optimized designs."],"dc:format":["application/pdf"],"dc:identifier":["https://hdl.handle.net/2142/117603"],"dc:language":["en","eng"],"dc:rights":["Copyright 2022 Asad Ahmed"],"dc:subject":["Fracture","Optimized Designs","Water Washable Resin","Standard Photopolymer Resin","Experimental Testing","Numerical Analysis"],"dc:title":["Additive manufacturing and experimental study of topology optimized structures with improved fracture performance"],"dc:type":["text","Thesis"],"thesis:degree_discipline":["Civil Engineering"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["M.S."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:24:56Z"}