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pro vyhledávání: '"H. Rokhgireh"'
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Publikováno v:
Journal of Materials Engineering and Performance. 30:6542-6548
Selective laser melting (SLM) has been developed in recent decades. It is capable of manufacturing components with complex geometries. However, there is no reliable model to predict the failure of parts made by this technique. In this study, the cont
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::021f49aaa00558ef25295d1e28cac6cf
https://doi.org/10.1007/s11665-021-05896-w
https://doi.org/10.1007/s11665-021-05896-w
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications. 235:1969-1980
Additively manufactured parts often comprise internal porosities due to the manufacturing process, which needs to be considered in modelling their mechanical behaviour. It was experimentally shown that additively manufactured parts’ tensile and com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b5624f245fd8cf27ae509b622802838
https://doi.org/10.1177/14644207211013434
https://doi.org/10.1177/14644207211013434
Publikováno v:
Mechanics of Advanced Materials and Structures. 29:70-77
In this study, a combination of Chaboche’s nonlinear kinematic hardening model and Lemaitre’s anisotropic continuum damage mechanics (CDM) model is used to predict ratcheting strain of different lo...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a5ed7c231fa6260c30a7903220ad65c6
https://doi.org/10.1080/15376494.2020.1751353
https://doi.org/10.1080/15376494.2020.1751353
Publikováno v:
Theoretical and Applied Fracture Mechanics. 98:104-111
Fatigue damage models based on the continuum damage mechanics have been proposed to predict fatigue life of specimens under uniaxial and multiaxial loadings. In this research the fatigue damage model of Chaboche is used to predict the fatigue life un
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::224dfc411fdcc6cc9f1c388c455a1538
https://doi.org/10.1016/j.tafmec.2018.09.019
https://doi.org/10.1016/j.tafmec.2018.09.019
Publikováno v:
International Journal of Mechanical Sciences. 137:295-303
In the present research, Bree's diagram, which has been used for ratcheting assessment of pressurized equipment in ASME III NH, has been developed when the pressure vessel contains discontinuities such as voids and microcracks. Nature of these defect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::830680b1f0b27b147734c9d56ae07b05
https://doi.org/10.1016/j.ijmecsci.2018.01.030
https://doi.org/10.1016/j.ijmecsci.2018.01.030
Autor:
Ali Nayebi, H. Rokhgireh
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science. 231:979-994
Correct determination of ratcheting strain is very important in cyclic loading. A new simple yield surface distortion model is presented and its effect on cyclic loading and ratcheting prediction is investigated in this research. Model of Baltov and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c91e2e5ce1604c25f05f41cd385369fc
https://doi.org/10.1177/0954406216634747
https://doi.org/10.1177/0954406216634747
Autor:
H. Rokhgireh, Ali Nayebi
Publikováno v:
Mechanics Research Communications. 72:87-92
In this study, a yield surface distortion model coupled with nonlinear kinematic hardening model is proposed. The new yield surface distortion model is used to simulate proportional and non-proportional cyclic loading paths. Distortion of the yield s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e085dd1338298c237bde19c67882c3ee
https://doi.org/10.1016/j.mechrescom.2016.01.012
https://doi.org/10.1016/j.mechrescom.2016.01.012
Publikováno v:
Volume 3B: Design and Analysis.
In cyclic loading and when plastic flow occurs, discontinuities grow. In this research, interaction diagram of Bree has been developed when the spherical pressure vessel contains discontinuities such as voids and microcracks. Bree’s diagram is used
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::46eb22b836db79a83ffaab1dbedd1aaf
https://doi.org/10.1115/pvp2018-84065
https://doi.org/10.1115/pvp2018-84065
Autor:
H. Rokhgireh, Ali Nayebi
Publikováno v:
Applied Mechanics and Materials. 784:11-18
In this paper, yield surface distortion was studied by considering the combination of nonlinear kinematic hardening model of Chaboche and a new anisotropic continuum damage evolution model. The constitutive relations for anisotropic damage of elastop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::90716aea007acea2fbf6792511039389
https://doi.org/10.4028/www.scientific.net/amm.784.11
https://doi.org/10.4028/www.scientific.net/amm.784.11