Evaluation of SIF in FGM Thick-walled Cylindrical Vessel
In the present research, an internal semi-elliptical surface crack in a FGM thick-walled cylindrical vessel under internal pressure is assumed. The Poisson ratio is constant throughout the vessel and the material is considered to be isotropic with exponentially varying elastic modulus. The KI is cal...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Bu-Ali Sina University
2017-09-01
|
| Series: | Journal of Stress Analysis |
| Subjects: | |
| Online Access: | https://jrstan.basu.ac.ir/article_2011_a3b317b36b2b70949b7cc48640bc3a0d.pdf |
| _version_ | 1811326348926386176 |
|---|---|
| author | N. Habibi S. Asadi R. Moradikhah |
| author_facet | N. Habibi S. Asadi R. Moradikhah |
| author_sort | N. Habibi |
| collection | DOAJ |
| description | In the present research, an internal semi-elliptical surface crack in a FGM thick-walled cylindrical vessel under internal pressure is assumed. The Poisson ratio is constant throughout the vessel and the material is considered to be isotropic with exponentially varying elastic modulus. The KI is calculated using the BEM and FEM for different values of the relative depths of crack and material gradients. The research results show that increasing the E2/E1, decreases SIF and when E2/E1 = 10, the SIF of the FGM vessel is often lower than the corresponding homogeneous vessel. It can be observed that the relation between KI and internal pressure in FGM is linear as for homogeneous materials, so that increasing internal pressure KI increase as the same. The obtained results of BEM and FEM methods show that good agreement between the results can be seen. |
| first_indexed | 2024-04-13T14:49:02Z |
| format | Article |
| id | doaj.art-c40b3ebb296044579ba585f9b3a55309 |
| institution | Directory Open Access Journal |
| issn | 2588-2597 2588-3054 |
| language | English |
| last_indexed | 2024-04-13T14:49:02Z |
| publishDate | 2017-09-01 |
| publisher | Bu-Ali Sina University |
| record_format | Article |
| series | Journal of Stress Analysis |
| spelling | doaj.art-c40b3ebb296044579ba585f9b3a553092022-12-22T02:42:40ZengBu-Ali Sina UniversityJournal of Stress Analysis2588-25972588-30542017-09-0121576810.22084/jrstan.2017.14362.10262011Evaluation of SIF in FGM Thick-walled Cylindrical VesselN. Habibi0S. Asadi1R. Moradikhah2Mechanical Engineering Department, University of Kurdistan, Sanandaj, Iran.Mechanical Engineering Department, University of Kurdistan, Sanandaj, Iran.Mechanical Engineering Department, University of Kurdistan, Sanandaj, Iran.In the present research, an internal semi-elliptical surface crack in a FGM thick-walled cylindrical vessel under internal pressure is assumed. The Poisson ratio is constant throughout the vessel and the material is considered to be isotropic with exponentially varying elastic modulus. The KI is calculated using the BEM and FEM for different values of the relative depths of crack and material gradients. The research results show that increasing the E2/E1, decreases SIF and when E2/E1 = 10, the SIF of the FGM vessel is often lower than the corresponding homogeneous vessel. It can be observed that the relation between KI and internal pressure in FGM is linear as for homogeneous materials, so that increasing internal pressure KI increase as the same. The obtained results of BEM and FEM methods show that good agreement between the results can be seen.https://jrstan.basu.ac.ir/article_2011_a3b317b36b2b70949b7cc48640bc3a0d.pdfFGMBEMStress intensity factorPressure vesselXFEMFM |
| spellingShingle | N. Habibi S. Asadi R. Moradikhah Evaluation of SIF in FGM Thick-walled Cylindrical Vessel Journal of Stress Analysis FGM BEM Stress intensity factor Pressure vessel XFEM FM |
| title | Evaluation of SIF in FGM Thick-walled Cylindrical Vessel |
| title_full | Evaluation of SIF in FGM Thick-walled Cylindrical Vessel |
| title_fullStr | Evaluation of SIF in FGM Thick-walled Cylindrical Vessel |
| title_full_unstemmed | Evaluation of SIF in FGM Thick-walled Cylindrical Vessel |
| title_short | Evaluation of SIF in FGM Thick-walled Cylindrical Vessel |
| title_sort | evaluation of sif in fgm thick walled cylindrical vessel |
| topic | FGM BEM Stress intensity factor Pressure vessel XFEM FM |
| url | https://jrstan.basu.ac.ir/article_2011_a3b317b36b2b70949b7cc48640bc3a0d.pdf |
| work_keys_str_mv | AT nhabibi evaluationofsifinfgmthickwalledcylindricalvessel AT sasadi evaluationofsifinfgmthickwalledcylindricalvessel AT rmoradikhah evaluationofsifinfgmthickwalledcylindricalvessel |