A COMPARATIVE STUDY OF VARIOUS MODELS OF EQUIVALENT PLASTIC STRAIN TO FRACTURE

BADANIE PORÓWNAWCZE RÓŻNYCH MODELI RÓWNOWAŻNEGO ODKSZTAŁCENIA PLASTYCZNEGO DO PĘKANIA
Mykhalevych V. Dobraniuk Y. Matviichuk V. Kraievskyi V. Тiutiunnyk O. Smailova S. Kozbakova A.
2023 Politechnika Lubelska

Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Srodowiska
2023 #13 Issue 1 64 - 70 pp.

For more then half a centre just the same approach to the simulation of the ductile crack formation was developed independently by the scientific communities of foreign and native researchers. The importance at these studies drastically increased. A set of the characteri stics, according to which it is recommendly to perform the detail comparison of the existing fracture models is developed. The examples of the analysis of a number of the most popular models by means of obtaining and study their analytical expressions regarding the conditions of the plane state are given. The generalized relations of the know models and a number of separate relations are obtained.

ductile fracture criteria , equivalent plastic strain to fracture , fracture graph , plane strain , stress triaxiality

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Vinnytsia National Technical University, Vinnytsia, Ukraine
Vinnytsia National Agrarian University, Vinnytsia, Ukraine
D. Serikbayev East Kazakhstan Technical University, Ust-Kamenogorsk, Kazakhstan
Almaty Technological University, Institute of Information and Computational Technologies CS MHES RK, Almaty, Kazakhstan

Vinnytsia National Technical University
Vinnytsia National Agrarian University
D. Serikbayev East Kazakhstan Technical University
Almaty Technological University

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