Language selection

Government of Canada / Gouvernement du Canada

Search

Influence of modelling variables on the distribution of lattice strains in a deformed polycrystal, with reference to neutron diffraction experiments

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1088/0965-0393/12/4/006
AuthorSearch for: ; Search for: ; Search for: ; Search for: ; Search for:
FormatText, Article
Abstract
The distribution of (elastic) lattice strains following plastic deformation of an aluminium alloy is examined using finite element simulations of aggregates with individually resolved crystals. The aggregates consist of face centred cubic crystals with initial orientations assigned by sampling the measured crystallographic texture. The simulations show that the lattice strains within the crystals are influenced by various microstructural features, material parameters and modelling assumptions. A hierarchy among these various effects is established, based on applications where low probability events are crucial, such as in fatigue or fracture problems. The simulation results are discussed in detail and compared with experimental data for the macroscopic stress, the lattice strains in the unloaded state and the associated uncertainties.
Publication date
PublisherIOP Publishing
In
  • Modelling and Simulation in Materials Science and Engineering 12, no. 4: 633–663.
Peer reviewedYes
NRC publication
This is a non-NRC publication

"Non-NRC publications" are publications authored by NRC employees prior to their employment by NRC.

NPARC number12328418
Export citationExport as RIS
Report a correctionReport a correction (opens in a new tab)
Record identifier722124b5-e494-40b3-8045-2bd38aed80e6
Record created2009-09-10
Record modified2020-04-17
Date modified: