{"id":{"repo_id":"ttu","oai_identifier":"oai:ttu-ir.tdl.org:2346/19994"},"canonical_url":"https://search.dev.ndltd.org/etd/ttu/oai:ttu-ir.tdl.org:2346/19994","repository":{"repo_id":"ttu","name":"Texas Technology University","base_url":"https://ttu-ir.tdl.org/server/oai/request"},"display":{"title":"The structural mechanics behavior of sealed insulating glass units","abstract":"Aesthetically pleasing, glass sheathed buildings and insulating glass (IG) units have formed a combination that is at once attractive and efficient. The use of IG units has increased in all types of buildings construction. Typical IG units consist of two glass plates separated by a perimeter spacer of aluminum. The perimeter is then coated with a polymer sealant which seals the air between the glass plates and holds the unit together. Until recently, most IG units were designed on an experimental basis, primarily by improving the polymer seals that seal the unit and hold it together. Computational tools for examining IG units on a structural mechanics basis were not available. This document introduces a series of working and proposed models designed to meet this need. An examination of the need for research and development in the IG unit field is followed by a discussion of "global" and "local" models designed to examine IG unit behavior from a structural mechanics standpoint. The global model considers the response of the entire IG unit, while the local model focuses on smaller segments of the unit within the seal detail. Specifically, the local model examines the complex response of the boundary of the unit where the materials making up the unit seal (aluminum, glass, sealant) are in contact. Engineering properties of glass and aluminum are well defined, but those of sealants are dependent on polymer type, strain rate and stress relaxation. A method for finding the engineering properties of polymer sealants is presented. Finally, the local model is exercised in a series of parametric studies which examine the effect on component stresses caused by changes in environmental conditions, sealant modulus, spacer cross section, depth of perimeter sealant, and spacer aspect ratio. Potential additional uses of the local model are discussed. These discussions include the effect and modeling method for including the IG unit mounting system such as a mechanical or dry neoprene gasket and a polymer " structural " seal.","abstract_html":"Aesthetically pleasing, glass sheathed buildings and insulating glass (IG) units have formed a combination that is at once attractive and efficient. The use of IG units has increased in all types of buildings construction. Typical IG units consist of two glass plates separated by a perimeter spacer of aluminum. The perimeter is then coated with a polymer sealant which seals the air between the glass plates and holds the unit together. Until recently, most IG units were designed on an experimental basis, primarily by improving the polymer seals that seal the unit and hold it together. Computational tools for examining IG units on a structural mechanics basis were not available. This document introduces a series of working and proposed models designed to meet this need. An examination of the need for research and development in the IG unit field is followed by a discussion of "global" and "local" models designed to examine IG unit behavior from a structural mechanics standpoint. The global model considers the response of the entire IG unit, while the local model focuses on smaller segments of the unit within the seal detail. Specifically, the local model examines the complex response of the boundary of the unit where the materials making up the unit seal (aluminum, glass, sealant) are in contact. Engineering properties of glass and aluminum are well defined, but those of sealants are dependent on polymer type, strain rate and stress relaxation. A method for finding the engineering properties of polymer sealants is presented. Finally, the local model is exercised in a series of parametric studies which examine the effect on component stresses caused by changes in environmental conditions, sealant modulus, spacer cross section, depth of perimeter sealant, and spacer aspect ratio. Potential additional uses of the local model are discussed. These discussions include the effect and modeling method for including the IG unit mounting system such as a mechanical or dry neoprene gasket and a polymer " structural " seal.","abstract_has_math":false,"creators":["Anderson, Jon Baxter"],"institution":"Texas Tech University","degree_name":"Ph.D.","degree_level":"Doctoral","degree_discipline":"Civil Engineering","degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1985,"date_issued":"1985-05","date_published":"1985-05","updated_at":"2026-07-24T05:04:51Z","subjects":["Structural engineering","Sealing (Technology)","Glass construction","Insulating materials","Glass-metal sealing"],"languages":["eng"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2346/19994","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Anderson, Jon Baxter"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.available","label":"Dc Date Available","values":["2011-02-18T23:26:39Z"]},{"key":"dc:date.issued","label":"Date","values":["1985-05"]},{"key":"dc:publisher","label":"Institution","values":["Texas Tech University"]},{"key":"dc:type","label":"Dc Type","values":["Dissertation"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Civil Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Doctoral"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["Texas Tech University"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Structural engineering","Sealing (Technology)","Glass construction","Insulating materials","Glass-metal sealing"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["eng"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/2346/19994"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Aesthetically pleasing, glass sheathed buildings and insulating glass (IG) units have formed a combination that is at once attractive and efficient. The use of IG units has increased in all types of buildings construction. Typical IG units consist of two glass plates separated by a perimeter spacer of aluminum. The perimeter is then coated with a polymer sealant which seals the air between the glass plates and holds the unit together. Until recently, most IG units were designed on an experimental basis, primarily by improving the polymer seals that seal the unit and hold it together. Computational tools for examining IG units on a structural mechanics basis were not available. This document introduces a series of working and proposed models designed to meet this need. An examination of the need for research and development in the IG unit field is followed by a discussion of "global" and "local" models designed to examine IG unit behavior from a structural mechanics standpoint. The global model considers the response of the entire IG unit, while the local model focuses on smaller segments of the unit within the seal detail. Specifically, the local model examines the complex response of the boundary of the unit where the materials making up the unit seal (aluminum, glass, sealant) are in contact. Engineering properties of glass and aluminum are well defined, but those of sealants are dependent on polymer type, strain rate and stress relaxation. A method for finding the engineering properties of polymer sealants is presented. Finally, the local model is exercised in a series of parametric studies which examine the effect on component stresses caused by changes in environmental conditions, sealant modulus, spacer cross section, depth of perimeter sealant, and spacer aspect ratio. Potential additional uses of the local model are discussed. These discussions include the effect and modeling method for including the IG unit mounting system such as a mechanical or dry neoprene gasket and a polymer " structural " seal."]},{"key":"dc:format.mimetype","label":"Dc Format Mimetype","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["The structural mechanics behavior of sealed insulating glass units"]}]}],"canonical_facts":{"dc:creator":["Anderson, Jon Baxter"],"dc:date.available":["2011-02-18T23:26:39Z"],"dc:date.issued":["1985-05"],"dc:description.abstract":["Aesthetically pleasing, glass sheathed buildings and insulating glass (IG) units have formed a combination that is at once attractive and efficient. The use of IG units has increased in all types of buildings construction. Typical IG units consist of two glass plates separated by a perimeter spacer of aluminum. The perimeter is then coated with a polymer sealant which seals the air between the glass plates and holds the unit together. Until recently, most IG units were designed on an experimental basis, primarily by improving the polymer seals that seal the unit and hold it together. Computational tools for examining IG units on a structural mechanics basis were not available. This document introduces a series of working and proposed models designed to meet this need. An examination of the need for research and development in the IG unit field is followed by a discussion of "global" and "local" models designed to examine IG unit behavior from a structural mechanics standpoint. The global model considers the response of the entire IG unit, while the local model focuses on smaller segments of the unit within the seal detail. Specifically, the local model examines the complex response of the boundary of the unit where the materials making up the unit seal (aluminum, glass, sealant) are in contact. Engineering properties of glass and aluminum are well defined, but those of sealants are dependent on polymer type, strain rate and stress relaxation. A method for finding the engineering properties of polymer sealants is presented. Finally, the local model is exercised in a series of parametric studies which examine the effect on component stresses caused by changes in environmental conditions, sealant modulus, spacer cross section, depth of perimeter sealant, and spacer aspect ratio. Potential additional uses of the local model are discussed. These discussions include the effect and modeling method for including the IG unit mounting system such as a mechanical or dry neoprene gasket and a polymer " structural " seal."],"dc:format.mimetype":["application/pdf"],"dc:identifier.uri":["http://hdl.handle.net/2346/19994"],"dc:language.iso":["eng"],"dc:publisher":["Texas Tech University"],"dc:subject":["Structural engineering","Sealing (Technology)","Glass construction","Insulating materials","Glass-metal sealing"],"dc:title":["The structural mechanics behavior of sealed insulating glass units"],"dc:type":["Dissertation"],"thesis:degree_discipline":["Civil Engineering"],"thesis:degree_level":["Doctoral"],"thesis:degree_name":["Ph.D."],"thesis:institution_name":["Texas Tech University"]},"updated_at":"2026-07-24T05:04:51Z"}