Influence of stress concentrator shape and testing temperature on impact fracture regularities of pipeline steel

International Conference on Mechanical Engineering, Automation and Control Systems 2016

机械制造;无线电电子学;计算机科学

Vlasov, I.V.^1,3 ; Panin, S.V.^1,3 ; Maruschak, P.O.^2 ; Moiseenko, D.D.^1 ; Berto, F.^4

Institute of Strength Physics and Materials Science RAS, 2/4, pr. Akademicheskii, Tomsk

634021, Russia^1

Ternopil Ivan Puluj National Technical University, str. Ruska, 56, Ternopil

46001, Ukraine^2

National Research Tomsk Polytechnic University, Lenina ave., 30, Tomsk

634050, Russia^3

NTNU, Department of Engineering Design and Materials, Richard Birkelands vei 2b, Trondheim

7491, Norway^4

关键词: Analysis of various;    Dynamic loadings;    Impact fracture;    Impact loadings;    Pipeline steel;    Strain localizations;    Stress concentrators;    Testing temperature;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/177/1/012117/pdf
DOI  :  10.1088/1757-899X/177/1/012117

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

The structure and impact toughness of the pipeline 17Mn1Si steel have been studied. The main attention was paid to the analysis of various conditions of stress concentration under dynamic loadings. The process of strain localization with increasing stress state stiffness at the tip of the concentrator with decreasing testing temperature was investigated. Impact loading diagrams for specimens with various stress concentrator shapes were registered and analyzed.