Polycrystal Modeling of Precipitate Effects on the Mechanical Behavior of an Aluminum -Copper Alloy

The physically-based hardening formulation was derived from dislocation theory resulting in both statistical and geometrical storage components, where the distinguishing microstructural length scales were included in the geometrical storage terms. The phenomenon of precipitation-induced anisotropy was incorporated into the hardening description. Model results were compared to single crystal and polycrystal compression experiments. Accurate simulations were obtained for most of the aging conditions and the correct trends due to precipitate-induced anisotropy were predicted.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Mechanical Engineering

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2015

Author dc:creator

• Foglesong, Tracy Jayne

Contributors dc:contributor

• Sehitoglu, Huseyin

• Engineering, Mechanical

Language dc:language

eng

Identifier

(MiAaPQ)AAI3023060

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/83763