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Lumped parameter model with inner state variables for modeling hot deformability of steels

F. Vode ; Institute of Metals and Technology, Ljubljana, Slovenia
J. Burja ; Institute of Metals and Technology, Ljubljana, Slovenia
F. Tehovnik ; Institute of Metals and Technology, Ljubljana, Slovenia
B. Arh ; Institute of Metals and Technology, Ljubljana, Slovenia

Puni tekst: engleski, pdf (211 KB) str. 111-114 preuzimanja: 115* citiraj
APA 6th Edition
Vode, F., Burja, J., Tehovnik, F. i Arh, B. (2017). Lumped parameter model with inner state variables for modeling hot deformability of steels. Metalurgija, 56 (1-2), 111-114. Preuzeto s https://hrcak.srce.hr/168901
MLA 8th Edition
Vode, F., et al. "Lumped parameter model with inner state variables for modeling hot deformability of steels." Metalurgija, vol. 56, br. 1-2, 2017, str. 111-114. https://hrcak.srce.hr/168901. Citirano 10.12.2019.
Chicago 17th Edition
Vode, F., J. Burja, F. Tehovnik i B. Arh. "Lumped parameter model with inner state variables for modeling hot deformability of steels." Metalurgija 56, br. 1-2 (2017): 111-114. https://hrcak.srce.hr/168901
Harvard
Vode, F., et al. (2017). 'Lumped parameter model with inner state variables for modeling hot deformability of steels', Metalurgija, 56(1-2), str. 111-114. Preuzeto s: https://hrcak.srce.hr/168901 (Datum pristupa: 10.12.2019.)
Vancouver
Vode F, Burja J, Tehovnik F, Arh B. Lumped parameter model with inner state variables for modeling hot deformability of steels. Metalurgija [Internet]. 2017 [pristupljeno 10.12.2019.];56(1-2):111-114. Dostupno na: https://hrcak.srce.hr/168901
IEEE
F. Vode, J. Burja, F. Tehovnik i B. Arh, "Lumped parameter model with inner state variables for modeling hot deformability of steels", Metalurgija, vol.56, br. 1-2, str. 111-114, 2017. [Online]. Dostupno na: https://hrcak.srce.hr/168901. [Citirano: 10.12.2019.]

Sažetak
A novel method for description of stress-strain relationship for hot deformability of steels is presented. Laplacian transformation of stress-strain data obtained on cylindrical hot compression tests offer simple description of dynamical input/output relationship between strain (input) and stress (output). In this paper, strain/stress relationship is described using transfer function of the third order. Parameters of transfer function are determined by numerical optimization for temperatures 1 000, 1 100 and 1 200 °C and logarithmic strain rates 10, 5 and 1 s-1. Obtained relative model error is around 1 % for logarithmic deformations in the range 0,1 <  < 0,8.

Ključne riječi
Alloyed steel; Hot deformability; stress-strain curves; mathematical model; Laplacian transformation

Hrčak ID: 168901

URI
https://hrcak.srce.hr/168901

Posjeta: 185 *