Multiscale polycrystal plasticity

Article Abstract:

Research was conducted to examine a macroscale hardening law formulation of geometrically necessary dislocation boundaries (GNB) strengthening mechanisms that are mapped to the orientation distribution of crystallites in to assign slip system shear flow resistance in a polycrystal plasticity model. A mapping procedure of the macroscale hardening surface to the length scale of grains determined crystallographic shear flow resistance. Results indicate that the hardening surface model of GNB strengthening mechanisms can afford improved predictive capability of nonproportional loading behavior of copper.

Anisotropy, Surface hardening, Dislocations in crystals, Dislocations (Crystals), Shear flow, Anisotropy (Physics)

---

Effect of deformation path sequence on the behavior of nanoscale copper bicrystal interfaces

Article Abstract:

The effect of deformation sequence and history on the inelastic response of copper interfaces on the nanoscale is examined. The confinement of path-history dependent material behavior within a finite layer of deformation around the bicrystal interface is observed.

United States, Science & research, Primary copper, Secondary nonferrous metals, Deformations (Mechanics), Deformation, Copper, Mechanical properties, Copper (Metal)

---

Application of multiscale crystal plasticity models to forming limit diagrams

Article Abstract:

Parametric examinations of forming limit diagrams are conducted using a multi-crystal plasticity model. It is demonstrated that shear softening can largely influence the necking pattern.

Measurement

Similar abstracts:

• Abstracts: Enhancement of Orimulsion biodegradation through the addition of natural marine carbon substrates. Harvesting energy from the marine sediment-water interface
• Abstracts: Effect of water saturation in soil organic matter on the partition of organic compounds. Partition of nonpolar organic pollutants from water to soil and sediment organic matters
• Abstracts: Nucleophilic substitution as a tool for the synthesis of unsymmetrical porphyrins. Origin, control and application of supramolecular chirogenesis in bisporphyrin-based systems
• Abstracts: Chemically activated fibers filter out atrazine. 'Soft' X-rays illuminate concrete chemistry. Bacteria can treat wastewater and generate electricity
• Abstracts: Back on track. Calatrava bridges to crown Dallas river basin. Record-breaking suspension-span to link two continents

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.