Numerical analysis of large elastoplastic deformations of bodies and continua and identification of their deformation diagrams under different types of loading

V. G. Bazhenov   ; E. V. Nagornykh

Učënye zapiski Kazanskogo universiteta. Seriâ Fiziko-matematičeskie nauki, Uchenye Zapiski Kazanskogo Universiteta. Seriya Fiziko-Matematicheskie Nauki, Tome 164 (2022) no. 4, pp. 316-328

Résumé

Based on the experimental-computational approach, a method for identifying deformation diagrams of elastoplastic materials by considering the inhomogeneity of the stress-strain state and large deformations was developed. Examples of the application of this method for various types of loading of the tested samples were presented: tension and torsion of cylindrical rods, kinetic indentation of a ball and a cylinder, dynamic compression of tablet samples, etc. A technique for interpolating the deformation diagram to take into account the type of stress state was proposed.

Détail

Keywords: experimental-computational approach, elastoplastic material, numerical technique, static and dynamic indentation, construction of true deformation diagrams, large plastic deformations.
Mots-clés : tension, torsion, compression

Bibliographie

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