COMPUTATIONAL AND EXPERIMENTAL STUDY OF DEFORMATION AND FRACTURE FOR TUBULAR 09G2S-STEEL SAMPLES UNDER TENSION AND INTERNAL PRESSURE CONDITIONS USING THE "LOGOS MECHANICAL" COMPUTATIONAL MODULE
A. A. Ryabov, V. N. Rechkin, V. A. Baryshev, R. A. Barabanov
VANT. Ser.: Mat. Mod. Fiz. Proc 2023. Вып.4. С. 59-69.
The paper presents the results of the computational and experimental study of the features of quasi-static deformation and fracture of tubular samples made of 09G2S steel under the effect of axial tension and internal pressure. The stress-strain state of the samples under large deformations up to fracture is numerically simulated on the base of experimental diagrams of the material deformation using the Logos Mechanical computational module. The threshold plastic strain intensity values of the material samples are studied under the conditions of a varying stress state described by various parameters. Keywords: stress-strain state, elasto-plastic deformation, fracture, strength criterion, the finite element method, "Logos" software package, "Logos Mechanical" computational module.
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