Evaluation of the Stress-Strain State at the Crack Tip in Casing Pipes Based on Numerical Simulation.
In: Materials Science, Jg. 58 (2023), Heft 4, S. 460-465
Online
academicJournal
Zugriff:
The distribution of local stresses and strains in a specimen in the vicinity of the crack tip in 50G and 32G2 casing pipe steels with different microstructure is obtained by simulating the stress-strain state at the crack tip and using numerical calculations. Steels are distinguished by atypical mechanical behavior: lower-strength 50G steel with a coarse-grained ferrite-pearlite structure is characterized by lower resistance to brittle fracture compared to 32G2 steel with a fine-grained bainite structure. The finite element method is used to simulate the specimen with a crack, and for calculations the true stress-strain curves of the steels are used. The calculation results confirm a higher susceptibility of the coarsegrained steel to crack propagation by brittle fracture. [ABSTRACT FROM AUTHOR]
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Titel: |
Evaluation of the Stress-Strain State at the Crack Tip in Casing Pipes Based on Numerical Simulation.
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Autor/in / Beteiligte Person: | Zvirko, O. I. ; Lipec, S. ; Vengreniuk, O. I. ; Dzioba, I. |
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Zeitschrift: | Materials Science, Jg. 58 (2023), Heft 4, S. 460-465 |
Veröffentlichung: | 2023 |
Medientyp: | academicJournal |
ISSN: | 1068-820X (print) |
DOI: | 10.1007/s11003-023-00685-3 |
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