Original scientific paper

https://doi.org/10.17559/TV-20160923100833

Numerical analysis of the effect of initial plasticity on transient creep in compact tension specimen under mechanical load

Marko Katinić ; College of Slavonski Brod, Technical Department, Dr. Mile Budaka 1, 35000 Slavonski Brod, Croatia
Dražan Kozak orcid.org/0000-0001-5245-4686 ; Josip Juraj Strossmayer University of Osijek, Mechanical Engineering Faculty in Slavonski Brod, Trg Ivane Brlić Mažuranić 2, 35000 Slavonski Brod, Croatia
Pejo Konjatić ; Josip Juraj Strossmayer University of Osijek, Mechanical Engineering Faculty in Slavonski Brod, Trg Ivane Brlić Mažuranić 2, 35000 Slavonski Brod, Croatia

Abstract

The effect of initial plasticity on transient creep in plain strain compact tension C(T) specimen under load control is numerically analyzed in this paper. The detailed finite element (FE) analysis was performed by varying the magnitude of the initial step-load, and for general material properties where different plastic and creep stress exponents were systematically varied. Comparisons have been performed between the FE computed C(t) values and available estimation equation. It has been found that the estimation equation provides good agreement with the FE results.

Keywords

C(t) integral; C(T) specimen; initial plasticity; load control; transient creep

Hrčak ID:

167502

URI

https://hrcak.srce.hr/167502

Publication date:

13.10.2016.

Article data in other languages: croatian

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