Extension of reflection-mode digital gradient sensing method for visualizing and quantifying transient deformations and damage in solids
نویسندگان
چکیده
منابع مشابه
Extension of reflection-mode digital gradient sensing method for visualizing and quantifying transient deformations and damage in solids
The reflection-mode Digital Gradient Sensing (r-DGS) method is extended to visualize and quantify dynamic deformations in solids due to stress wave propagation and for damage/disbond detection in layered materials due to impact loading. The r-DGS technique employs digital image correlation principles to quantify two orthogonal surface slopes simultaneously in specularly reflective solids. Here,...
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The reflection-mode digital gradient sensing (rDGS) method is extended for visualizing and quantifying crack-tip deformations in solids under quasi-static and dynamic loading conditions. The r-DGS technique employs digital image correlation principles to quantify two orthogonal surface slopes simultaneously in specularly reflective solids by measuring small deflections of light rays. Here, for ...
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A full-field digital gradient sensing method is proposed for measuring small angular deflections of light rays due to local stresses in transparent planar solids. The working principle of the method is explained, and the governing equations are derived. The analysis shows that angular deflections of light rays can be linked to nonuniform changes in thickness and refractive index of the material...
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Article history: Received 17 May 2012 Received in revised form 4 September 2012 Accepted 15 September 2012
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ژورنال
عنوان ژورنال: Optics and Lasers in Engineering
سال: 2016
ISSN: 0143-8166
DOI: 10.1016/j.optlaseng.2015.08.008