Numerical Analysis of the Transient Thermal Stress Intensity Factors in Cylinders Containing an External Circumferential Semi-Elliptical Crack
In this paper, the transient thermal stress intensity factors for circumferential semi-elliptical crack located on the external surface of the cylinder are determined numerically. The internal surface of the cylinder is exposed to ultra-cold fluid, and the external wall is kept at a constant tempera...
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Semnan University
2023-02-01
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| Series: | Journal of Rehabilitation in Civil Engineering |
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| Online Access: | https://civiljournal.semnan.ac.ir/article_6420_fbfdbbaf193209a17687a89765f4629f.pdf |
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| author | Majid Jamal-Omidi Seyed Mehdi Nabavi Mehrdad Aghanavehsi |
| author_facet | Majid Jamal-Omidi Seyed Mehdi Nabavi Mehrdad Aghanavehsi |
| author_sort | Majid Jamal-Omidi |
| collection | DOAJ |
| description | In this paper, the transient thermal stress intensity factors for circumferential semi-elliptical crack located on the external surface of the cylinder are determined numerically. The internal surface of the cylinder is exposed to ultra-cold fluid, and the external wall is kept at a constant temperature. The three-dimensional finite element method in ABAQUS software and singular elements in the crack front has been used. In order to ensure the accuracy of the modelling process, stress intensity factors on the cylinder containing the semi-elliptical crack under mechanical loading for different geometric dimensions of the cylinder are extracted, and the results are evaluated with available data. In the research process, transient thermal stress has been modelled using an uncoupled thermoelasticity model in the quasi-static state. Also, the thermal stress results in steady-state are compared to the existing analytical data and, excellent agreement is achieved. Finally, transient thermal stress intensity factors are presented for different values of cylinder radius ratio and various relative depths and aspect ratios of the crack. |
| format | Article |
| id | doaj-art-4adf3ef6ddcb45e98bfc25c96ce3bc75 |
| institution | Kabale University |
| issn | 2345-4415 2345-4423 |
| language | English |
| publishDate | 2023-02-01 |
| publisher | Semnan University |
| record_format | Article |
| series | Journal of Rehabilitation in Civil Engineering |
| spelling | doaj-art-4adf3ef6ddcb45e98bfc25c96ce3bc752025-01-20T11:34:20ZengSemnan UniversityJournal of Rehabilitation in Civil Engineering2345-44152345-44232023-02-0111112714010.22075/jrce.2022.24540.15536420Numerical Analysis of the Transient Thermal Stress Intensity Factors in Cylinders Containing an External Circumferential Semi-Elliptical CrackMajid Jamal-Omidi0Seyed Mehdi Nabavi1Mehrdad Aghanavehsi2Faculty of Aerospace Engineering, Malek-Ashtar University of Technology, Tehran, IranFaculty of Aerospace Engineering, Malek-Ashtar University of Technology, Tehran, IranDepartment of Mechanical Engineering, College of Engineering, Islamic Azad University, Tehran, IranIn this paper, the transient thermal stress intensity factors for circumferential semi-elliptical crack located on the external surface of the cylinder are determined numerically. The internal surface of the cylinder is exposed to ultra-cold fluid, and the external wall is kept at a constant temperature. The three-dimensional finite element method in ABAQUS software and singular elements in the crack front has been used. In order to ensure the accuracy of the modelling process, stress intensity factors on the cylinder containing the semi-elliptical crack under mechanical loading for different geometric dimensions of the cylinder are extracted, and the results are evaluated with available data. In the research process, transient thermal stress has been modelled using an uncoupled thermoelasticity model in the quasi-static state. Also, the thermal stress results in steady-state are compared to the existing analytical data and, excellent agreement is achieved. Finally, transient thermal stress intensity factors are presented for different values of cylinder radius ratio and various relative depths and aspect ratios of the crack.https://civiljournal.semnan.ac.ir/article_6420_fbfdbbaf193209a17687a89765f4629f.pdfexternal semi-elliptical circumferential cracktransient thermal stressthree-dimensional finite element methodstress intensity factorscylinder |
| spellingShingle | Majid Jamal-Omidi Seyed Mehdi Nabavi Mehrdad Aghanavehsi Numerical Analysis of the Transient Thermal Stress Intensity Factors in Cylinders Containing an External Circumferential Semi-Elliptical Crack Journal of Rehabilitation in Civil Engineering external semi-elliptical circumferential crack transient thermal stress three-dimensional finite element method stress intensity factors cylinder |
| title | Numerical Analysis of the Transient Thermal Stress Intensity Factors in Cylinders Containing an External Circumferential Semi-Elliptical Crack |
| title_full | Numerical Analysis of the Transient Thermal Stress Intensity Factors in Cylinders Containing an External Circumferential Semi-Elliptical Crack |
| title_fullStr | Numerical Analysis of the Transient Thermal Stress Intensity Factors in Cylinders Containing an External Circumferential Semi-Elliptical Crack |
| title_full_unstemmed | Numerical Analysis of the Transient Thermal Stress Intensity Factors in Cylinders Containing an External Circumferential Semi-Elliptical Crack |
| title_short | Numerical Analysis of the Transient Thermal Stress Intensity Factors in Cylinders Containing an External Circumferential Semi-Elliptical Crack |
| title_sort | numerical analysis of the transient thermal stress intensity factors in cylinders containing an external circumferential semi elliptical crack |
| topic | external semi-elliptical circumferential crack transient thermal stress three-dimensional finite element method stress intensity factors cylinder |
| url | https://civiljournal.semnan.ac.ir/article_6420_fbfdbbaf193209a17687a89765f4629f.pdf |
| work_keys_str_mv | AT majidjamalomidi numericalanalysisofthetransientthermalstressintensityfactorsincylinderscontaininganexternalcircumferentialsemiellipticalcrack AT seyedmehdinabavi numericalanalysisofthetransientthermalstressintensityfactorsincylinderscontaininganexternalcircumferentialsemiellipticalcrack AT mehrdadaghanavehsi numericalanalysisofthetransientthermalstressintensityfactorsincylinderscontaininganexternalcircumferentialsemiellipticalcrack |