{"id":{"repo_id":"buffalo","oai_identifier":"oai:ubir.buffalo.edu:10477/79426"},"canonical_url":"https://search.dev.ndltd.org/etd/buffalo/oai:ubir.buffalo.edu:10477/79426","repository":{"repo_id":"buffalo","name":"Buffalo","base_url":"https://ubir.buffalo.edu/oai/request"},"display":{"title":"Computationally Effective and Efficient Methods for Interface Characterization Using Cohesive Zone Model and Lubrication Theory","abstract":"Ph.D.","abstract_html":"Ph.D.","abstract_has_math":false,"creators":["Venketeswaran, Abhishek; 0000-0003-2219-9578"],"institution":"State University of New York at Buffalo","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":["Das, Sonjoy","Mechanical and Aerospace Engineering"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2019,"date_issued":"2019-04-04T20:32:50Z","date_published":"2019-04-04T20:32:50Z","updated_at":"2026-07-27T19:05:16Z","subjects":["mechanics","applied mathematics","computational physics"],"languages":["eng"],"rights":["Users of works found in University at Buffalo Institutional Repository (UBIR) are responsible for identifying and contacting the copyright owner for permission to reuse. University at Buffalo Libraries do not manage rights for copyright-protected works and cannot assist with permissions.","Copyright retained by author."],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/10477/79426","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Das, Sonjoy","Mechanical and Aerospace Engineering"]},{"key":"dc:creator","label":"Author","values":["Venketeswaran, Abhishek; 0000-0003-2219-9578"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2019-04-04T20:32:50Z","2019","2019-01-18 12:36:30"]},{"key":"dc:publisher","label":"Institution","values":["State University of New York at Buffalo"]},{"key":"dc:type","label":"Dc Type","values":["Text","Dissertation"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["mechanics","applied mathematics","computational physics"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Users of works found in University at Buffalo Institutional Repository (UBIR) are responsible for identifying and contacting the copyright owner for permission to reuse. University at Buffalo Libraries do not manage rights for copyright-protected works and cannot assist with permissions.","Copyright retained by author."]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/10477/79426"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Ph.D.","This dissertation discusses the development of three computational models of multi-physics phenomena present in additive manufacturing and brain injury. A major focus is on modeling an essential mechanical process of an additive manufacturing (3D printing) technology known as constrained surface stereolithography. A crucial step in the printing process is the separation of the printed part (which is submerged in a pool of liquid resin) from the printing apparatus. The printed parts can possibly adhere to the surface of the apparatus and hence are susceptible to damage during the separation process. A cohesive zone based finite element (FE) model was developed which is capable of predicting the mechanical stresses experienced by objects during the separation process. Calibration and validation of the model was carried out using experimental data collected by collaborators. The aforementioned project inspired the investigation of the underlying phenomenon of viscous adhesion caused by the presence of a liquid sandwiched between two solids. This phenomenon has been well studied in the context of lubrication and bioadhesion. However the presence of soft deformable interfaces in the constrained surface stereolithography apparatus posed several new challenges. A novel mathematical framework was developed, based on lubrication theory and perturbation theory to model fluid-structure interactions in narrow gaps between elastic solids. Subsequently, a FE model was developed based on this framework whose predictive capabilities are in excellent agreement with existing commercial multi-physics simulations softwares, albeit at a significantly lesser computational cost. Apart from additive manufacturing, this model can be employed to study fluid-structure interactions in various areas like soft lubrication, soft robotics and microfluidics. Finally, an extension of lubrication theory is proposed to model the role of the cerebrospinal fluid in protecting the brain from mechanical impacts. It is envisaged that this work can be fused with the state of the art finite element head models to enhance their predictive capabilities of traumatic brain injuries."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Computationally Effective and Efficient Methods for Interface Characterization Using Cohesive Zone Model and Lubrication Theory"]}]}],"canonical_facts":{"dc:contributor":["Das, Sonjoy","Mechanical and Aerospace Engineering"],"dc:creator":["Venketeswaran, Abhishek; 0000-0003-2219-9578"],"dc:date":["2019-04-04T20:32:50Z","2019","2019-01-18 12:36:30"],"dc:description":["Ph.D.","This dissertation discusses the development of three computational models of multi-physics phenomena present in additive manufacturing and brain injury. A major focus is on modeling an essential mechanical process of an additive manufacturing (3D printing) technology known as constrained surface stereolithography. A crucial step in the printing process is the separation of the printed part (which is submerged in a pool of liquid resin) from the printing apparatus. The printed parts can possibly adhere to the surface of the apparatus and hence are susceptible to damage during the separation process. A cohesive zone based finite element (FE) model was developed which is capable of predicting the mechanical stresses experienced by objects during the separation process. Calibration and validation of the model was carried out using experimental data collected by collaborators. The aforementioned project inspired the investigation of the underlying phenomenon of viscous adhesion caused by the presence of a liquid sandwiched between two solids. This phenomenon has been well studied in the context of lubrication and bioadhesion. However the presence of soft deformable interfaces in the constrained surface stereolithography apparatus posed several new challenges. A novel mathematical framework was developed, based on lubrication theory and perturbation theory to model fluid-structure interactions in narrow gaps between elastic solids. Subsequently, a FE model was developed based on this framework whose predictive capabilities are in excellent agreement with existing commercial multi-physics simulations softwares, albeit at a significantly lesser computational cost. Apart from additive manufacturing, this model can be employed to study fluid-structure interactions in various areas like soft lubrication, soft robotics and microfluidics. Finally, an extension of lubrication theory is proposed to model the role of the cerebrospinal fluid in protecting the brain from mechanical impacts. It is envisaged that this work can be fused with the state of the art finite element head models to enhance their predictive capabilities of traumatic brain injuries."],"dc:format":["application/pdf"],"dc:identifier":["http://hdl.handle.net/10477/79426"],"dc:language":["eng"],"dc:publisher":["State University of New York at Buffalo"],"dc:rights":["Users of works found in University at Buffalo Institutional Repository (UBIR) are responsible for identifying and contacting the copyright owner for permission to reuse. University at Buffalo Libraries do not manage rights for copyright-protected works and cannot assist with permissions.","Copyright retained by author."],"dc:subject":["mechanics","applied mathematics","computational physics"],"dc:title":["Computationally Effective and Efficient Methods for Interface Characterization Using Cohesive Zone Model and Lubrication Theory"],"dc:type":["Text","Dissertation"]},"updated_at":"2026-07-27T19:05:16Z"}