3D deformation field throughout the interior of materials. Metadata

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Title

  • Main Title 3D deformation field throughout the interior of materials.

Creator

  • Author: Jin, Huiqing
    Creator Type: Personal
  • Author: Lu, Wei-Yang
    Creator Type: Personal

Contributor

  • Sponsor: United States. National Nuclear Security Administration.
    Contributor Type: Organization
    Contributor Info: USDOE National Nuclear Security Administration (NNSA)

Publisher

  • Name: Sandia National Laboratories
    Place of Publication: Livermore, California
    Additional Info: Sandia National Laboratories (SNL-CA), Livermore, CA (United States)

Date

  • Creation: 2013-09-01

Language

  • English

Description

  • Content Description: This report contains the one-year feasibility study for our three-year LDRD proposal that is aimed to develop an experimental technique to measure the 3D deformation fields inside a material body. In this feasibility study, we first apply Digital Volume Correlation (DVC) algorithm to pre-existing in-situ Xray Computed Tomography (XCT) image sets with pure rigid body translation. The calculated displacement field has very large random errors and low precision that are unacceptable. Then we enhance these tomography images by setting threshold of the intensity of each slice. DVC algorithm is able to obtain accurate deformation fields from these enhanced image sets and the deformation fields are consistent with the global mechanical loading that is applied to the specimen. Through this study, we prove that the internal markers inside the pre-existing tomography images of aluminum alloy can be enhanced and are suitable for DVC to calculate the deformation field throughout the material body.
  • Physical Description: 25 p.

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Report

Format

  • Text

Identifier

  • Report No.: SAND2013-7824
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 1096458
  • Archival Resource Key: ark:/67531/metadc842102