Subvoxel level short crack simulation and visualization

Bo Ao, Dinghua Zhang, Xinbo Zhao, Xiagang Xu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In order to obtain the projections with short cracks, a novel subvoxel model is proposed for short crack simulation. Short cracks are modeled in subvoxel space. Giving an initial subvoxel as an initial cracking point, a short crack is simulated according to the random growing mode. If there are multiple initial cracking points, multi-cracks can be simulated easily, and short cracks are visualized using CT. Limited by the resolution of real CT system, it is not possible to detect individual short crack but a group of them. By pre-processing the reconstructed images, new images are obtained, which are very close to actual conditions. The differences between the reconstructed images without short cracks and the images with short cracks are analyzed. Experiment results proved that it is feasible to detect short crack behavior by analyzing the grey level variance of the images.

Original languageEnglish
Title of host publicationAdvances in Materials Manufacturing Science and Technology II - Selected Papers from the 12th International Manufacturing Conference in China
EditorsChengyu Jiang, Geng Liu, Dinghua Zhang, Xipeng Xu
PublisherTrans Tech Publications Ltd
Pages556-559
Number of pages4
ISBN (Print)0878494219, 9780878494217
DOIs
StatePublished - 2006
Event12th International Manufacturing Conference in China, IMCC2006 - Xi'an, China
Duration: 21 Sep 200623 Sep 2006

Publication series

NameMaterials Science Forum
Volume532-533
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference12th International Manufacturing Conference in China, IMCC2006
Country/TerritoryChina
CityXi'an
Period21/09/0623/09/06

Keywords

  • CT (Computed Tomography)
  • Linear attenuation coefficient
  • Short crack
  • Subvoxel
  • Visualization

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