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- Yield_surface abstract "A yield surface is a five-dimensional surface in the six-dimensional space of stresses. The yield surface is usually convex and the state of stress of inside the yield surface is elastic. When the stress state lies on the surface the material is said to have reached its yield point and the material is said to have become plastic. Further deformation of the material causes the stress state to remain on the yield surface, even though the shape and size of the surface may change as the plastic deformation evolves. This is because stress states that lie outside the yield surface are non-permissible in rate-independent plasticity, though not in some models of viscoplasticity.The yield surface is usually expressed in terms of (and visualized in) a three-dimensional principal stress space , a two- or three-dimensional space spanned by stress invariants or a version of the three-dimensional Haigh–Westergaard stress space. Thus we may write the equation of the yield surface (that is, the yield function) in the forms:where are the principal stresses.where is the first principal invariant of the Cauchy stress and are the second and third principal invariants of the deviatoric part of the Cauchy stress.where are scaled versions of and and is a function of .where are scaled versions of and , and is the Lode angle.".
- Yield_surface thumbnail YieldSurface.svg?width=300.
- Yield_surface wikiPageID "8001517".
- Yield_surface wikiPageRevisionID "599455024".
- Yield_surface align "none".
- Yield_surface alt "-plane".
- Yield_surface alt "3.0".
- Yield_surface caption "In 3D space of principal stresses".
- Yield_surface caption "In the -plane".
- Yield_surface footer "Bigoni-Piccolroaz yield surface".
- Yield_surface hasPhotoCollection Yield_surface.
- Yield_surface image "Supbp1.png".
- Yield_surface image "Supbp2.png".
- Yield_surface width "280".
- Yield_surface width "350".
- Yield_surface subject Category:Continuum_mechanics.
- Yield_surface subject Category:Materials_science.
- Yield_surface subject Category:Plasticity.
- Yield_surface subject Category:Solid_mechanics.
- Yield_surface comment "A yield surface is a five-dimensional surface in the six-dimensional space of stresses. The yield surface is usually convex and the state of stress of inside the yield surface is elastic. When the stress state lies on the surface the material is said to have reached its yield point and the material is said to have become plastic.".
- Yield_surface label "Criteri di resistenza".
- Yield_surface label "Critère de plasticité".
- Yield_surface label "Superficie de fluencia".
- Yield_surface label "Yield surface".
- Yield_surface sameAs Superficie_de_fluencia.
- Yield_surface sameAs Critère_de_plasticité.
- Yield_surface sameAs Criteri_di_resistenza.
- Yield_surface sameAs m.026n2zn.
- Yield_surface sameAs Q2288902.
- Yield_surface sameAs Q2288902.
- Yield_surface wasDerivedFrom Yield_surface?oldid=599455024.
- Yield_surface depiction YieldSurface.svg.
- Yield_surface isPrimaryTopicOf Yield_surface.
