Interior strain analysis of a woven composite beam using X-ray computed tomography and digital volumetric speckle photography

2015 ◽  
Vol 134 ◽  
pp. 782-788 ◽  
Author(s):  
Lingtao Mao ◽  
Fu-pen Chiang
Keyword(s):  
Computed Tomography ◽  
Composite Beam ◽  
Strain Analysis ◽  
Speckle Photography ◽  
Woven Composite ◽  
X Ray ◽  
X Ray Computed

3D strain evolution in concrete using in situ X-ray computed tomography testing and digital volumetric speckle photography

Measurement ◽  
2019 ◽  
Vol 133 ◽  
pp. 456-467 ◽  
Author(s):  
Lingtao Mao ◽  
Zexun Yuan ◽  
Min Yang ◽  
Hongbin Liu ◽  
Fu-pen Chiang
Keyword(s):  
Computed Tomography ◽  
Speckle Photography ◽  
X Ray ◽  
Strain Evolution ◽  
X Ray Computed

scholarly journals 3D Strain Mapping of Opaque Materials Using an Improved Digital Volumetric Speckle Photography Technique with X-Ray Microtomography

2019 ◽  
Vol 9 (7) ◽  
pp. 1418 ◽  
Author(s):  
Lingtao Mao ◽  
Haizhou Liu ◽  
Ying Zhu ◽  
Ziyan Zhu ◽  
Rui Guo ◽  
...  
Keyword(s):  
Composite Beam ◽  
Speckle Photography ◽  
Woven Composite ◽  
Strain Mapping ◽  
Strain Fields ◽  
X Ray ◽  
Red Sandstone ◽  
Three Point Bending ◽  
Multi Scale ◽  
Calculation Process

Digital volumetric speckle photography (DVSP) method has been used to strain investigation in opaque materials. In this paper, an improved DVSP algorithm is introduced, in which a multi-scale coarse–fine subset calculation process and a subvoxel shifting technique are applied to increase accuracy. We refer to the new algorithm as Multi-scale and Subvoxel shifting Digital Volumetric Speckle Photography (MS-DVSP). The displacement and strain fields of a red sandstone cylinder exposed to uniaxial compression and a woven composite beam under three-point bending are mapped in detail. The characteristics of the interior deformation of the specimens are clearly depicted, thus elucidating the failure mechanism of the materials.

X-Ray Computed Tomography of Ultralightweight Metals

1999 ◽  
Vol 11 (1) ◽  
pp. 199-211
Author(s):  
J. M. Winter ◽  
R. E. Green ◽  
A. M. Waters ◽  
W. H. Green
Keyword(s):  
Computed Tomography ◽  
X Ray ◽  
X Ray Computed
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