Prediction of cycle life of expansion bellows for fixed tube sheet heat exchanger
Research on determining the lifetime of an expansion bellows designed to compensate the difference in expansion between the shell and the tubes in a fixed tube sheet heat exchanger has never ceased because of its Importance in a heat exchanger. The main function of the expansion bellows is to absorb...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2019-01-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | http://www.gruppofrattura.it/pdf/rivista/numero47/numero_47_art_3.pdf |
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| author | A. Chouiter D. Benzerga A. Haddi T. Tamine |
| author_facet | A. Chouiter D. Benzerga A. Haddi T. Tamine |
| author_sort | A. Chouiter |
| collection | DOAJ |
| description | Research on determining the lifetime of an expansion bellows designed to compensate the difference in expansion between the shell and the tubes in a fixed tube sheet heat exchanger has never ceased because of its Importance in a heat exchanger. The main function of the expansion bellows is to absorb the difference in expansion between the shell and the tube bundle while resisting the axial thermal deflection and the equivalent internal pressure on the shell side. TEMA-9 [1] edition attaches great importance to the finite element method in the case of an expansion bellows because of the disadvantages of the old design methods, which lead to overestimation and stress overload in the bellows. The objective of this work is to study the damage in the most stressed zone of the expansion bellows in order to construct a numerical simulation tool of the rupture to determine the lifetime that an expansion bellows can support during the operating conditions of a fixed tube heat exchanger. In a first step, the ANSYS FEM calculation code will allow the determination of the critical zone where the Von Mises is maximum and where potential cracks can develop. In a second step, a postprocessor based on the concept of Continuum Damage Mechanics and using Newton's iterative method will be applied to this critical area for the determination of the bellows critical lifetime. The maximum lifetime will be the value of the number of cycles that corresponds to the critical value of the DC damage (crack initiation). |
| format | Article |
| id | doaj-art-40df8c9f164e4fd4a0e7d65d6b057681 |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-40df8c9f164e4fd4a0e7d65d6b0576812025-01-03T00:26:59ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932019-01-011347303810.3221/IGF-ESIS.47.0310.3221/IGF-ESIS.47.03Prediction of cycle life of expansion bellows for fixed tube sheet heat exchangerA. ChouiterD. BenzergaA. HaddiT. TamineResearch on determining the lifetime of an expansion bellows designed to compensate the difference in expansion between the shell and the tubes in a fixed tube sheet heat exchanger has never ceased because of its Importance in a heat exchanger. The main function of the expansion bellows is to absorb the difference in expansion between the shell and the tube bundle while resisting the axial thermal deflection and the equivalent internal pressure on the shell side. TEMA-9 [1] edition attaches great importance to the finite element method in the case of an expansion bellows because of the disadvantages of the old design methods, which lead to overestimation and stress overload in the bellows. The objective of this work is to study the damage in the most stressed zone of the expansion bellows in order to construct a numerical simulation tool of the rupture to determine the lifetime that an expansion bellows can support during the operating conditions of a fixed tube heat exchanger. In a first step, the ANSYS FEM calculation code will allow the determination of the critical zone where the Von Mises is maximum and where potential cracks can develop. In a second step, a postprocessor based on the concept of Continuum Damage Mechanics and using Newton's iterative method will be applied to this critical area for the determination of the bellows critical lifetime. The maximum lifetime will be the value of the number of cycles that corresponds to the critical value of the DC damage (crack initiation).http://www.gruppofrattura.it/pdf/rivista/numero47/numero_47_art_3.pdfCycle life Expansion bellow Fixed tube sheet heat exchanger Continuum damage mechanics Damage Finite element |
| spellingShingle | A. Chouiter D. Benzerga A. Haddi T. Tamine Prediction of cycle life of expansion bellows for fixed tube sheet heat exchanger Fracture and Structural Integrity Cycle life Expansion bellow Fixed tube sheet heat exchanger Continuum damage mechanics Damage Finite element |
| title | Prediction of cycle life of expansion bellows for fixed tube sheet heat exchanger |
| title_full | Prediction of cycle life of expansion bellows for fixed tube sheet heat exchanger |
| title_fullStr | Prediction of cycle life of expansion bellows for fixed tube sheet heat exchanger |
| title_full_unstemmed | Prediction of cycle life of expansion bellows for fixed tube sheet heat exchanger |
| title_short | Prediction of cycle life of expansion bellows for fixed tube sheet heat exchanger |
| title_sort | prediction of cycle life of expansion bellows for fixed tube sheet heat exchanger |
| topic | Cycle life Expansion bellow Fixed tube sheet heat exchanger Continuum damage mechanics Damage Finite element |
| url | http://www.gruppofrattura.it/pdf/rivista/numero47/numero_47_art_3.pdf |
| work_keys_str_mv | AT achouiter predictionofcyclelifeofexpansionbellowsforfixedtubesheetheatexchanger AT dbenzerga predictionofcyclelifeofexpansionbellowsforfixedtubesheetheatexchanger AT ahaddi predictionofcyclelifeofexpansionbellowsforfixedtubesheetheatexchanger AT ttamine predictionofcyclelifeofexpansionbellowsforfixedtubesheetheatexchanger |