Suche
Anzeige der Dokumente 1-4 von 4
Dissertation
Materialmodellierung für die simultane Kalt-/Warmumformung auf Basis erweiterter rheologischer Modelle
(kassel university press, 2014)
Aufsatz
Crack Paths at Multiple-crack Systems in Anisotropic Simulation and Experiment
(2014-06-27)
This paper is targeted on numerical methods for accurate crack tip loading analysis and crack path prediction. Those are based on finite element calculations of the boundary value problem. Applying path-independent integrals to curved cracks in order to accurately calculate the J-integral, energy release rate (ERR) or stress intensity factors (SIF) is still not state of the art. Contours which are not confined to the crack tip require special analytical preparation and numerical treatment to supply results which are ...
Aufsatz
Numerical Two-Scale Simulations of Damage Evolution at Refractory Materials
(2014-02-25)
Fracture and damage processes on micro- and mesoscale are combined with macroscale simulations applying numerical multiscale approaches. Cracks and grain boundaries are reproduced in cell models that take account of transand intercrystalline crack growth. The global, in general thermomechanical boundary value problem is considered within a continuum mechanics framework. Two approaches are presented combining the scales. Simple processes on the smaller level are described in analytical models including the damage ...
Dissertation
Numerische Modellierung von Fluid-Struktur-Wechselwirkungen an wellenbeaufschlagten Strukturen
(kassel university press, 2014)
Die vorliegende Arbeit behandelt die numerische Modellierung von Fluid-Struktur-Wechselwirkung (FSI) an wellenbeaufschlagten Strukturen mittels eines partitionierten Block-Gauß-Seidel-Lösungsverfahrens. Die Berechnung der Teilpartitionen der multiregionalen bzw. multiphysikalischen Berechnungsfelder basiert dabei auf der numerischen Finite-Volumen-Methode (FVM). Das Hauptaugenmerk der Arbeit liegt auf der Entwicklung eines Fluid-Struktur-Wechselwirkungs-Algorithmus zur Untersuchung von dämpfungsbegünstigten Eigenschaften ...