Alfirević, Ivo and Žeželj, Dragan and Skozrit, Ivica (2015) Smooth Yield Surfaces of Isotropic Materials. = Smooth Yield Surfaces of Isotropic Materials. Transactions of FAMENA, 39 (3). pp. 1-8. ISSN 1333-1124. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. . Točan broj autora: 3.
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Abstract
Two types of the tensor formulation of the general yield criteria are presented. The first one having an invariant form describes smooth yield surfaces such as the von Mises circular cylinder. The second type defines multiple yield surfaces and it is convenient for the description of a smooth prism, i.e. Tresca’s hexagonal prism. Only the first invariant form has been investigated. In the case of a general isotropic material having different tensile and compressive yield strengths, three independent material constants have to be measured in order to achieve a complete description of the yield surface. Usually, these constants are tensile yield strength SY.t, compressive yield strength SY.c, and shearing yield strength TY. Furthermore, it has been shown that the first stress invariant Skk directly influences yielding. If an isotropic material exhibits equal tensile and compressive yield strengths, then Skk does not influence yielding. In that case only one material constant, usually SY.t, suffices for the description of the yield surface.
| Item Type: | Article (["eprint_fieldopt_article_type_article" not defined]) |
|---|---|
| Keywords (Croatian): | yield surface, smooth, yield strength, tensor formulation |
| Subjects: | TECHNICAL SCIENCE > Mechanical Engineering |
| Divisions: | 100 Department of Design > 120 Chair of Machine Elements 200 Department of Engineering Mechanics > 210 Chair of Mechanics and Strength of Materials |
| Indexed in Web of Science: | Yes |
| Indexed in Current Contents: | No |
| Citations SCOPUS: | 0 (15.11.2016.) |
| Date Deposited: | 19 Sep 2016 11:54 |
| Last Modified: | 15 Nov 2016 08:44 |
| URI: | http://repozitorij.fsb.hr/id/eprint/6327 |
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