Computational Plasticity

Details

Titel der Veranstaltung Computational Plasticity
Modulnummer 13-E1-M019
TUCaN Kursnummer 13-E1-0019-vu (Vorlesung und Übung)
Dozent:in Dr.-Ing. Aris Tsakmakis
Prof. Dr.-Ing. Dominik Schillinger
Sprache Englisch
Turnus Sommer
Credit Points 6
Prüfung Mündliche Prüfung, Hausübungen

Inhalte

Part I: One-dimensional plasticity: formulation and numerical implementation

  • Derivation of one-dimensional constitutive equations, building on the phenomenological interpretation of plasticity.
  • Strong and weak forms of the initial boundary value problem (IBVP), its discretization and linearization.
  • Integration algorithms (return map algorithms) for one-dimensional constitutive equations.

Part II: Three-dimensional classical rate-independent plasticity

  • Review of classical governing equations within continuum mechanics and thermodynamics.
  • Theory of yield surfaces and classical small-strain plasticity models.
  • Maximum plastic dissipation principle and its interpretation as a constrained convex optimization problem.
  • Derivation of constitutive equations from convex optimization principles.

Part III: Integration algorithms for plasticity

  • Incremental form of constitutive equations and geometric interpretation as closest point projection.
  • Radial return map algorithm for J2 plasticity.
  • General return map algorithms (closest point projection algorithms, cutting plane algorithms).

Literatur

Simo, J.C. and Hughes, T.J.R., 2006. Computational Inelasticity. Springer Science & Business Media.

Hinweise

Gruppenübung

Die Übung ist in die Vorlesung integriert. Die einzelnen Termine werden auf den Vorlesungsstoff abgestimmt individuell abgehalten und möglichst frühzeitig bekannt gegeben.