A multi-camera based photogrammetric method for three-dimensional full-field displacement measurements of geosynthetics during tensile test

2021 ◽  
Author(s):  
Xiaolong Xia ◽  
Xiong Zhang ◽  
Chunmei Mu
Keyword(s):  
Tensile Test ◽  
Three Dimensional ◽  
Full Field ◽  
Field Displacement ◽  
Photogrammetric Method ◽  
Displacement Measurements

Thermal Stresses in a Bimaterial Joint: An Experimental Analysis

1994 ◽  
Vol 61 (1) ◽  
pp. 192-198 ◽  
Author(s):  
D. Post ◽  
J. D. Wood ◽  
B. Han ◽  
V. J. Parks ◽  
F. P. Gerstle
Keyword(s):  
Experimental Analysis ◽  
Thermal Stresses ◽  
Stress Gradient ◽  
Three Dimensional ◽  
High Sensitivity ◽  
Stress Singularities ◽  
Severe Stress ◽  
Field Displacement ◽  
Displacement Measurements ◽  
Uniform Change

An experimental analysis was conducted on a bimaterial plate subjected to a uniform change of temperature. Whole-field displacement measurements U and V were made on the free surface by means of high-sensitivity moire interferometry, and stresses were calculated from these data. Stresses resembled those of stress singularities, but they reached finite tensile and compressive peaks on opposite sides of the interface. The peaks and a severe stress gradient between them occurred in a narrow zone of about ±25 μm from the interface. The results pertain to an elastic three-dimensional body.

scholarly journals Combined high-speed holographic shape and full-field displacement measurements of tympanic membrane

2018 ◽  
Vol 24 (03) ◽  
pp. 1 ◽  
Author(s):  
Payam Razavi ◽  
Haimi Tang ◽  
John J. Rosowski ◽  
Cosme Furlong ◽  
Jeffrey T. Cheng
Keyword(s):  
Tympanic Membrane ◽  
High Speed ◽  
Full Field ◽  
Field Displacement ◽  
Displacement Measurements

scholarly journals Warm Forming Response of ZEK100 Sheet obtained under Biaxial Stretching with Full-Field Displacement Measurements

2018 ◽  
Vol 418 ◽  
pp. 012030
Author(s):  
Bruce W. Williams ◽  
Jonathan McKinley ◽  
Kevin P. Boyle ◽  
Lucian Blaga ◽  
Srihari Kurukuri ◽  
...  
Keyword(s):  
Warm Forming ◽  
Full Field ◽  
Biaxial Stretching ◽  
Field Displacement ◽  
Displacement Measurements

scholarly journals Full-field deformation characteristics of anisotropic marble under compression revealed by 3D digital image correlation

2021 ◽  
Author(s):  
yu wang ◽  
zhengyang song ◽  
zhiqiang hou ◽  
chun zhu
Keyword(s):  
Digital Image Correlation ◽  
Digital Image ◽  
Progressive Failure ◽  
Three Dimensional ◽  
Image Correlation ◽  
Localized Deformation ◽  
Full Field ◽  
Strain Pattern ◽  
Field Displacement ◽  
3D Digital Image Correlation

This work aims to reveal the anisotropic full-field displacemnet and the progressive failure behaviors of interbedded marble under uniaxial compression using three dimensional digital image correlation (3D DIC) technique. The effects of the interbed orientation on the field displacement and strain pattern and the crack evolution were analyzed qualitatively and quantitatively. Testing results show that different stress strain responses can be generated depending on the interbed orientation, and the interbeds influence the localized deformation and high strain concentration pattern. The field displacement evolution curves present different pattern and are impacted by the localized deformation. In addition, the strain localization takes places progressively and develops at a lower rate for rock with 0° and 90° interbed than those of 30° and 60° interbed rock. The quick shear-sliding along the interbed leads to the minimum strength of rock having 30° interbed orientation. It is suggested that rock anisotropic field deformation is structure depended.

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