KIT | KIT-Bibliothek | Impressum
Open Access Logo
§
Volltext
URN: urn:nbn:de:swb:90-423672

Atomistically-informed discrete dislocation dynamics modeling of plastic flow in body-centered cubic metals

Srivastava, Kinshuk

Abstract:
In this work, a computational framework for discrete dislocation dynamics simulations of bcc metals, which naturally accounts for non-Schmid effects on a/2<111> screw dislocation mobility based on atomistic simulation results, is developed. The model describes a physical basis to explain many experimental observations on bcc metals. The role of dislocation interactions towards plastic flow are studied. A new mechanism responsible for anomalous slip in micrometer sized W pillars is identified.


Zugehörige Institution(en) am KIT Institut für Angewandte Materialien - Zuverlässigkeit von Bauteilen und Systemen (IAM-ZBS)
Publikationstyp Hochschulschrift
Jahr 2014
Sprache Englisch
Identifikator KITopen ID: 1000042367
Verlag Karlsruhe
Abschlussart Dissertation
Fakultät Fakultät für Maschinenbau (MACH)
Institut Institut für Angewandte Materialien - Zuverlässigkeit von Bauteilen und Systemen (IAM-ZBS)
Prüfungsdaten 24.07.2014
Referent/Betreuer Prof. P. Gumbsch
Schlagworte Body-centered cubic, Non-Schmid effects, Discrete Dislocation Dynamics, Elementary slip planes, Anomalous slip
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft KITopen Landing Page