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Experimental Investigation of Secondary Flow Structures Downstream of a Model Type IV Stent Failure in a 180° Curved Artery Test Section
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Analysis and visualization of multiply oriented lattice structures by a two-dimensional continuous wavelet transform.

H M Singer1, I Singer

  • 1Institute of Low Temperature Science ILTS, Hokkaido University, 060-0819 Sapporo, Japan. hsinger@solid.phys.ethz.ch

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|October 10, 2006
PubMed
Summary
This summary is machine-generated.

A new wavelet transform method precisely visualizes and analyzes multigrain structures from atomistic simulations. This technique accurately identifies grain boundaries and lattice orientations for detailed material property analysis.

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Area of Science:

  • Materials Science
  • Computational Physics
  • Data Analysis

Background:

  • The phase-field-crystal model simulates multigrain structures at atomistic scales.
  • Distinguishing grain boundaries and defects is challenging due to identical atom treatment.

Purpose of the Study:

  • To develop a method for analyzing and visualizing multigrain structures from atomistic simulations.
  • To enable precise measurements of grain boundaries and lattice orientations.

Main Methods:

  • A two-dimensional wavelet transform was developed.
  • The transform extracts grain boundaries and lattice orientation relative to a reference frame.

Main Results:

  • The wavelet transform effectively visualizes multigrain structures.
  • It allows for exact measurements of low- and high-angle boundaries, grain size, and boundary-angle distributions.
  • Results can be compared with experimental data.

Conclusions:

  • The wavelet transform is a powerful tool for analyzing atomistic simulation data.
  • It offers insights into material microstructures and properties.
  • The method is applicable to various atomistic simulation outputs, including molecular dynamics and granular materials.