{"id":{"repo_id":"oxford-brookes","oai_identifier":"tle:94a49c6f-1d71-43d1-a426-cd4368958a86:d6bd9758-527a-46cd-bfe2-c433766e8fca:1"},"canonical_url":"https://search.dev.ndltd.org/etd/oxford-brookes/tle:94a49c6f-1d71-43d1-a426-cd4368958a86:d6bd9758-527a-46cd-bfe2-c433766e8fca:1","repository":{"repo_id":"oxford-brookes","name":"Oxford Brookes University","base_url":"https://radar.brookes.ac.uk/radar/oai"},"display":{"title":"Residual stress determination in advanced silicon carbide fibre reinforced aluminium matrix composites","abstract":"Metal matrix composite (MMC) materials can provide very desirable material and component properties. MMCs can be divided into two groups; those that are reinforced by long continuous fibres (such as carbon, alumina, silicon, boron and carbide) or those reinforced by discontinuous fibres (particulates). The addition of fibres and particulates reinforcements enhance desirable properties of the base metal (matrix). A key benefit of MMCs is the ability to tailor component behaviour via fibre orientation or through variation of fibre dispersion through the component. The strength properties of MMC’s are known to be heavily influenced by the manufacturing process, caused by changes in the matrix microstructure and through the introduction of residual stresses. Residual stresses are introduced into the composites due to the thermal expansion mismatch between the fibre reinforcements and the matrix. It is very difficult to determine the internal residual stresses within MMCs. This thesis presents an indirect method to predict the thermal residual stresses, through matching numerical and experimental curvature. This research focuses on predicting manufacturing residual stresses to improve the performance of silicon carbide fibre reinforced aluminium 6061 matrix composites. The initial numerical models presented are for composite plates with [90/0] and [+55/-55] fibre. The materials used for the finite element models are elastic-plastic and temperature-dependent. To test the numerical models' ability to predict the curvature, composite laminates were manufactured to the same specifications using the same manufacturing process conditions to validate with the numerical models. The curvatures between the models and manufactured plates showed a good correlation, giving confidence in the models' ability to predict the residual stresses for more complex components. The validated methods developed were then applied to a pressure vessel (burst tube) to demonstrate what residual stresses would be developed within a real component due to the manufacturing process.","abstract_html":"Metal matrix composite (MMC) materials can provide very desirable material and component properties. MMCs can be divided into two groups; those that are reinforced by long continuous fibres (such as carbon, alumina, silicon, boron and carbide) or those reinforced by discontinuous fibres (particulates). The addition of fibres and particulates reinforcements enhance desirable properties of the base metal (matrix). A key benefit of MMCs is the ability to tailor component behaviour via fibre orientation or through variation of fibre dispersion through the component. The strength properties of MMC’s are known to be heavily influenced by the manufacturing process, caused by changes in the matrix microstructure and through the introduction of residual stresses. Residual stresses are introduced into the composites due to the thermal expansion mismatch between the fibre reinforcements and the matrix. It is very difficult to determine the internal residual stresses within MMCs. This thesis presents an indirect method to predict the thermal residual stresses, through matching numerical and experimental curvature. This research focuses on predicting manufacturing residual stresses to improve the performance of silicon carbide fibre reinforced aluminium 6061 matrix composites. The initial numerical models presented are for composite plates with [90/0] and [+55/-55] fibre. The materials used for the finite element models are elastic-plastic and temperature-dependent. To test the numerical models' ability to predict the curvature, composite laminates were manufactured to the same specifications using the same manufacturing process conditions to validate with the numerical models. The curvatures between the models and manufactured plates showed a good correlation, giving confidence in the models' ability to predict the residual stresses for more complex components. The validated methods developed were then applied to a pressure vessel (burst tube) to demonstrate what residual stresses would be developed within a real component due to the manufacturing process.","abstract_has_math":false,"creators":["Ran, Zixuan"],"institution":"Oxford Brookes University","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":["Fellows, Neil","Durodola, John","Gerguri, Shpend"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2021,"date_issued":"2021","date_published":"2021","updated_at":"2026-07-24T03:41:58Z","subjects":[],"languages":["en"],"rights":["All rights reserved"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://doi.org/10.24384/kcmv-1q29","outbound_label":"DOI","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Fellows, Neil","Durodola, John","Gerguri, Shpend","Ran, Zixuan"]},{"key":"dc:creator","label":"Author","values":["Ran, Zixuan"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2021"]},{"key":"dc:publisher","label":"Institution","values":["Oxford Brookes University"]},{"key":"dc:type","label":"Dc Type","values":["thesis"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["All rights reserved"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://doi.org/10.24384/kcmv-1q29","https://radar.brookes.ac.uk/radar/file/94a49c6f-1d71-43d1-a426-cd4368958a86/1/Ran2021ResidualStress.pdf"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Metal matrix composite (MMC) materials can provide very desirable material and component properties. MMCs can be divided into two groups; those that are reinforced by long continuous fibres (such as carbon, alumina, silicon, boron and carbide) or those reinforced by discontinuous fibres (particulates). The addition of fibres and particulates reinforcements enhance desirable properties of the base metal (matrix). A key benefit of MMCs is the ability to tailor component behaviour via fibre orientation or through variation of fibre dispersion through the component. The strength properties of MMC’s are known to be heavily influenced by the manufacturing process, caused by changes in the matrix microstructure and through the introduction of residual stresses. Residual stresses are introduced into the composites due to the thermal expansion mismatch between the fibre reinforcements and the matrix. It is very difficult to determine the internal residual stresses within MMCs. This thesis presents an indirect method to predict the thermal residual stresses, through matching numerical and experimental curvature. This research focuses on predicting manufacturing residual stresses to improve the performance of silicon carbide fibre reinforced aluminium 6061 matrix composites. The initial numerical models presented are for composite plates with [90/0] and [+55/-55] fibre. The materials used for the finite element models are elastic-plastic and temperature-dependent. To test the numerical models' ability to predict the curvature, composite laminates were manufactured to the same specifications using the same manufacturing process conditions to validate with the numerical models. The curvatures between the models and manufactured plates showed a good correlation, giving confidence in the models' ability to predict the residual stresses for more complex components. The validated methods developed were then applied to a pressure vessel (burst tube) to demonstrate what residual stresses would be developed within a real component due to the manufacturing process."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Residual stress determination in advanced silicon carbide fibre reinforced aluminium matrix composites"]}]}],"canonical_facts":{"dc:contributor":["Fellows, Neil","Durodola, John","Gerguri, Shpend","Ran, Zixuan"],"dc:creator":["Ran, Zixuan"],"dc:date":["2021"],"dc:description":["Metal matrix composite (MMC) materials can provide very desirable material and component properties. MMCs can be divided into two groups; those that are reinforced by long continuous fibres (such as carbon, alumina, silicon, boron and carbide) or those reinforced by discontinuous fibres (particulates). The addition of fibres and particulates reinforcements enhance desirable properties of the base metal (matrix). A key benefit of MMCs is the ability to tailor component behaviour via fibre orientation or through variation of fibre dispersion through the component. The strength properties of MMC’s are known to be heavily influenced by the manufacturing process, caused by changes in the matrix microstructure and through the introduction of residual stresses. Residual stresses are introduced into the composites due to the thermal expansion mismatch between the fibre reinforcements and the matrix. It is very difficult to determine the internal residual stresses within MMCs. This thesis presents an indirect method to predict the thermal residual stresses, through matching numerical and experimental curvature. This research focuses on predicting manufacturing residual stresses to improve the performance of silicon carbide fibre reinforced aluminium 6061 matrix composites. The initial numerical models presented are for composite plates with [90/0] and [+55/-55] fibre. The materials used for the finite element models are elastic-plastic and temperature-dependent. To test the numerical models' ability to predict the curvature, composite laminates were manufactured to the same specifications using the same manufacturing process conditions to validate with the numerical models. The curvatures between the models and manufactured plates showed a good correlation, giving confidence in the models' ability to predict the residual stresses for more complex components. The validated methods developed were then applied to a pressure vessel (burst tube) to demonstrate what residual stresses would be developed within a real component due to the manufacturing process."],"dc:format":["application/pdf"],"dc:identifier":["https://doi.org/10.24384/kcmv-1q29","https://radar.brookes.ac.uk/radar/file/94a49c6f-1d71-43d1-a426-cd4368958a86/1/Ran2021ResidualStress.pdf"],"dc:language":["en"],"dc:publisher":["Oxford Brookes University"],"dc:rights":["All rights reserved"],"dc:title":["Residual stress determination in advanced silicon carbide fibre reinforced aluminium matrix composites"],"dc:type":["thesis"]},"updated_at":"2026-07-24T03:41:58Z"}