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A MODIFICATION OF ABDELKARIM-OHNO MODEL FOR RATCHETING SIMULATIONS

Radim Halama   ORCID icon orcid.org/0000-0002-3546-4660 ; Department of Mechanics of Materials, Faculty of Mechanical Engineering, VŠB-TU Ostrava, Czech Republic

Puni tekst: engleski, pdf (4 MB) str. 3-9 preuzimanja: 1.004* citiraj
APA 6th Edition
Halama, R. (2008). A MODIFICATION OF ABDELKARIM-OHNO MODEL FOR RATCHETING SIMULATIONS. Tehnički vjesnik, 15 (3), 3-9. Preuzeto s https://hrcak.srce.hr/28536
MLA 8th Edition
Halama, Radim. "A MODIFICATION OF ABDELKARIM-OHNO MODEL FOR RATCHETING SIMULATIONS." Tehnički vjesnik, vol. 15, br. 3, 2008, str. 3-9. https://hrcak.srce.hr/28536. Citirano 04.03.2021.
Chicago 17th Edition
Halama, Radim. "A MODIFICATION OF ABDELKARIM-OHNO MODEL FOR RATCHETING SIMULATIONS." Tehnički vjesnik 15, br. 3 (2008): 3-9. https://hrcak.srce.hr/28536
Harvard
Halama, R. (2008). 'A MODIFICATION OF ABDELKARIM-OHNO MODEL FOR RATCHETING SIMULATIONS', Tehnički vjesnik, 15(3), str. 3-9. Preuzeto s: https://hrcak.srce.hr/28536 (Datum pristupa: 04.03.2021.)
Vancouver
Halama R. A MODIFICATION OF ABDELKARIM-OHNO MODEL FOR RATCHETING SIMULATIONS. Tehnički vjesnik [Internet]. 2008 [pristupljeno 04.03.2021.];15(3):3-9. Dostupno na: https://hrcak.srce.hr/28536
IEEE
R. Halama, "A MODIFICATION OF ABDELKARIM-OHNO MODEL FOR RATCHETING SIMULATIONS", Tehnički vjesnik, vol.15, br. 3, str. 3-9, 2008. [Online]. Dostupno na: https://hrcak.srce.hr/28536. [Citirano: 04.03.2021.]

Sažetak
When materials are subjected to cyclic plastic loading with nonzero mean stress, strain usually accumulates in the direction of mean stress with an increasing number of cycles. This kind of strain accumulation is called cyclic creep or ratcheting. The phenomenon strongly depends on many factors and its accurate numerical modelling is problematic, especially under non-proportional loading. Two modifications of AbdelKarim-Ohno cyclic plasticity model were proposed for better ratcheting simulations. The developed model was implemented into the commercial FE software ANSYS using a radial return method. In this paper, the model capability is verified on a set of axial/torsional loading paths taken from Chen et al. The model predicts ratcheting strain reasonably well for almost all test cases.

Ključne riječi
finite element method; simulation; cyclic plasticity; ratcheting

Hrčak ID: 28536

URI
https://hrcak.srce.hr/28536

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