Constitutive model of high-temperature rapid fracture of Si3N4 ceramics for engine turbine discs and their pore insensitivity parameters
The metallic materials used to manufacture turbine components can potentially be replaced with ceramics such as Si3N4, but the stress on turbine discs is difficult to determine experimentally, which hinders the development and optimization of ceramics. The finite element method solves this problem,...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2024-10-01
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| Series: | Journal of Asian Ceramic Societies |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/21870764.2024.2397853 |
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| author | JS Peng FY Li SJ Ma XH Dong XP Zhang |
| author_facet | JS Peng FY Li SJ Ma XH Dong XP Zhang |
| author_sort | JS Peng |
| collection | DOAJ |
| description | The metallic materials used to manufacture turbine components can potentially be replaced with ceramics such as Si3N4, but the stress on turbine discs is difficult to determine experimentally, which hinders the development and optimization of ceramics. The finite element method solves this problem, but it requires an accurate constitutive model and parameters. Existing methods for determining model parameters lack versatility and do not consider the internal pores of ceramics. This work proposes a method for determining the parameters of the high-temperature rapid fracture constitutive model of ceramics with internal pores based on the results of industrial computed tomography (CT) and high-temperature fracture toughness experiments. The constitutive model for a ceramic with internal pores was selected based on the typical service conditions of turbine discs. Industrial CT was used to measure pore information. A finite element preprocessor was developed to create simulated specimens with pores. The high-temperature fracture toughness of the ceramics was measured. Pore insensitivity was the parameter obtained from the high-temperature constitutive model of ceramics with pores using this method. The maximum relative error between the predicted and experimental flexural strengths was 6.8%. It provides a new idea for determining the parameters of constitutive models for materials with pores. |
| format | Article |
| id | doaj-art-4d739014f5df41b9a21b732900d2521d |
| institution | Kabale University |
| issn | 2187-0764 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Asian Ceramic Societies |
| spelling | doaj-art-4d739014f5df41b9a21b732900d2521d2025-01-23T12:06:47ZengTaylor & Francis GroupJournal of Asian Ceramic Societies2187-07642024-10-0112428129510.1080/21870764.2024.2397853Constitutive model of high-temperature rapid fracture of Si3N4 ceramics for engine turbine discs and their pore insensitivity parametersJS Peng0FY Li1SJ Ma2XH Dong3XP Zhang4School of Material Science and Engineering, Nanjing University of Science and Technology, Nanjing, ChinaSchool of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, ChinaSchool of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, ChinaSchool of Science, Nanjing University of Science and Technology, Nanjing, ChinaSchool of Material Science and Engineering, Nanjing University of Science and Technology, Nanjing, ChinaThe metallic materials used to manufacture turbine components can potentially be replaced with ceramics such as Si3N4, but the stress on turbine discs is difficult to determine experimentally, which hinders the development and optimization of ceramics. The finite element method solves this problem, but it requires an accurate constitutive model and parameters. Existing methods for determining model parameters lack versatility and do not consider the internal pores of ceramics. This work proposes a method for determining the parameters of the high-temperature rapid fracture constitutive model of ceramics with internal pores based on the results of industrial computed tomography (CT) and high-temperature fracture toughness experiments. The constitutive model for a ceramic with internal pores was selected based on the typical service conditions of turbine discs. Industrial CT was used to measure pore information. A finite element preprocessor was developed to create simulated specimens with pores. The high-temperature fracture toughness of the ceramics was measured. Pore insensitivity was the parameter obtained from the high-temperature constitutive model of ceramics with pores using this method. The maximum relative error between the predicted and experimental flexural strengths was 6.8%. It provides a new idea for determining the parameters of constitutive models for materials with pores.https://www.tandfonline.com/doi/10.1080/21870764.2024.2397853Si3N4engine componentsconstitutive modelporehigh-temperature |
| spellingShingle | JS Peng FY Li SJ Ma XH Dong XP Zhang Constitutive model of high-temperature rapid fracture of Si3N4 ceramics for engine turbine discs and their pore insensitivity parameters Journal of Asian Ceramic Societies Si3N4 engine components constitutive model pore high-temperature |
| title | Constitutive model of high-temperature rapid fracture of Si3N4 ceramics for engine turbine discs and their pore insensitivity parameters |
| title_full | Constitutive model of high-temperature rapid fracture of Si3N4 ceramics for engine turbine discs and their pore insensitivity parameters |
| title_fullStr | Constitutive model of high-temperature rapid fracture of Si3N4 ceramics for engine turbine discs and their pore insensitivity parameters |
| title_full_unstemmed | Constitutive model of high-temperature rapid fracture of Si3N4 ceramics for engine turbine discs and their pore insensitivity parameters |
| title_short | Constitutive model of high-temperature rapid fracture of Si3N4 ceramics for engine turbine discs and their pore insensitivity parameters |
| title_sort | constitutive model of high temperature rapid fracture of si3n4 ceramics for engine turbine discs and their pore insensitivity parameters |
| topic | Si3N4 engine components constitutive model pore high-temperature |
| url | https://www.tandfonline.com/doi/10.1080/21870764.2024.2397853 |
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