A Comparative Study of Dynamic Fracture of Soda-Lime Glass Using Photoelasticity, Digital Image Correlation and Digital Gradient Sensing Techniques

2019 ◽  
Vol 60 (2) ◽  
pp. 217-233 ◽  
Author(s):  
S. Dondeti ◽  
H. V. Tippur
Keyword(s):  
Digital Image Correlation ◽  
Comparative Study ◽  
Dynamic Fracture ◽  
Digital Image ◽  
Soda Lime ◽  
Image Correlation ◽  
Soda Lime Glass ◽  
Gradient Sensing ◽  
Digital Gradient Sensing

A Comparative Study of Random Patterns for Digital Image Correlation

2012 ◽  
Vol 42 (2) ◽  
pp. 55-66 ◽  
Author(s):  
G. Stoilov ◽  
V. Kavardzhikov ◽  
D. Pashkouleva
Keyword(s):  
Digital Image Correlation ◽  
Comparative Study ◽  
Digital Image ◽  
Tensile Tests ◽  
Image Correlation ◽  
Random Pattern ◽  
Mechanics Of Solids ◽  
Analysis Technique ◽  
Computer Based ◽  
Random Patterns

A Comparative Study of Random Patterns for Digital Image CorrelationDigital Image Correlation (DIC) is a computer based image analysis technique utilizing random patterns, which finds applications in experimental mechanics of solids and structures. In this paper a comparative study of three simulated random patterns is done. One of them is generated according to a new algorithm, introduced by the authors. A criterion for quantitative evaluation of random patterns after the calculation of their autocorrelation functions is introduced. The patterns' deformations are simulated numerically and realized experimentally. The displacements are measured by using the DIC method. Tensile tests are performed after printing the generated random patterns on surfaces of standard iron sheet specimens. It is found that the new designed random pattern keeps relatively good quality until reaching 20% deformation.

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