Comparison of infrared and 3D digital image correlation techniques applied for mechanical testing of materials

Infrared Thermography as a Method for Energy Absorption Evaluation of Metal Foams

“…The 3D Digital Image Correlation is much more appropriate method for such cases. the thermography turns to be the only method capable of visualizing strain at higher speeds of dynamic loading [1]. Middle wave cooled thermal detectors are essential for this purpose.…”

“…The impact energy is through foam deformation process transformed into plastic deformations and heat during impact process. In our recent work [1] we have proven that heat distribution during dynamic irreversible plastic loading corresponds to effective strain distribution recorded by means of 3D Digital Image Correlation (DIC) technique. This work was a final proof of observations made on porous materials [2][3][4][5].…”

“…The presented research results are an overview of several years of research on cellular materials from thermographic aspect, where the basic research presented in [1] illustrates the capabilities and limits of thermography as an NDT method in experimental mechanics.…”

In situ manufacturing and mechanical properties of syntactic foam filled tubes

“…The applied relative displacement was 30 mm. A high speed cooled middle-wave infrared (IR) thermal camera Flir SC 5000 was used to monitor the plastification zones of the samples during deformation [52]. Finally, a liquid penetration test was performed on deformed samples to locate possible cracks in deformed zones.…”

“…Additional IR images for dynamic bending tests shown in Fig. 10 further allow the visualisation of the plastification of sample surfaces [52].…”