On the use of stereo‐digital image correlation for the alignment of a fatigue testing machine in accordance with international standards: A feasibility study

Strain ◽  
2021 ◽  
Author(s):  
Juan Manuel García ◽  
Marie‐Thérèse Auclair ◽  
Thilo F. Morgeneyer
Keyword(s):  
Digital Image Correlation ◽  
Feasibility Study ◽  
Digital Image ◽  
Fatigue Testing ◽  
Testing Machine ◽  
International Standards ◽  
Image Correlation ◽  
Stereo Digital Image Correlation

Impact of motion blur on stereo-digital image correlation with the focus on a drone-carried stereo rig

Strain ◽  
2018 ◽  
Vol 55 (1) ◽  
pp. e12300
Author(s):  
R. Balcaen ◽  
A. Lavatelli ◽  
C. Jiménez-Peña ◽  
H. Pfeiffer ◽  
E. Zappa ◽  
...  
Keyword(s):  
Digital Image Correlation ◽  
Digital Image ◽  
Motion Blur ◽  
Image Correlation ◽  
Stereo Digital Image Correlation

SIF determination with digital image correlation

2015 ◽  
Vol 6 (6) ◽  
pp. 668-676 ◽  
Author(s):  
Paulo J Tavares ◽  
Tiago Ramos ◽  
Daniel Braga ◽  
Mario A P Vaz ◽  
Pedro Miguel Guimarães Pires Moreira
Keyword(s):  
Experimental Data ◽  
Digital Image Correlation ◽  
Digital Image ◽  
Fatigue Testing ◽  
Image Correlation ◽  
Image Method ◽  
Mode Ii ◽  
Pure Mode ◽  
Great Success ◽  
Content Type

Purpose – Hybrid methods, wherefore numerical and experimental data are used to calculate a critical parameter, have been used for several years with great success in Experimental Mechanics and, in particular, in fracture mechanics. The purpose of this paper is to report on the comparison of the strain field from numerical modelling forecasts against the experimental data obtained with the digital image correlation method under Mode II loading in fatigue testing. The numerical dual boundary element method has been established in the past as a very reliable method near singular regions where stresses tend to grow abruptly. The results obtained from the strain data near the crack tip were used in Williams expansion and agree fairly well with both the numerical results and the analytical solution proposed for pure Mode II testing. Design/methodology/approach – The work presented in this note is experimental. The proposed methodology is of an hybrid experimental/numerical nature in that a numerical stress intensity factor calculation hinges upon a stress field obtained with an image method. Findings – The obtained results are an important step towards the development of a practical tool for crack behaviour prediction in fatigue dominated events. Research limitations/implications – The results also stress the necessity of improving the experimental techniques to a point where the methods can be applied in real-life solicitations outside of laboratory premises. Originality/value – Although several research teams around the globe are presently working in this field, the present research topic is original and the proposed methodology has been presented initially by the research team years ago.

scholarly journals High-Speed X-ray Stereo Digital Image Correlation for Fluid-Structure Interactions in a Shock Tube

2020 ◽  
Author(s):  
Jeremy James ◽  
Elizabeth M. Jones ◽  
Enrico C. Quintana ◽  
Kyle P. Lynch ◽  
Benjamin R. Halls ◽  
...  
Keyword(s):  
Digital Image Correlation ◽  
Shock Tube ◽  
Digital Image ◽  
High Speed ◽  
Image Correlation ◽  
Fluid Structure Interactions ◽  
Fluid Structure ◽  
X Ray ◽  
Stereo Digital Image Correlation

Target-based calibration method for multifields of view measurement using multiple stereo digital image correlation systems

2017 ◽  
Vol 56 (12) ◽  
pp. 1 ◽  
Author(s):  
Shuai Dong ◽  
Shanshan Yu ◽  
Zheng Huang ◽  
Shoutan Song ◽  
Xinxing Shao ◽  
...  
Keyword(s):  
Digital Image Correlation ◽  
Digital Image ◽  
Calibration Method ◽  
Image Correlation ◽  
Stereo Digital Image Correlation
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