INVESTIGATION OF THE DEFORMATION AND FRACTURE OF COMPOSITES WITH THE HELP OF ELECTRONIC SPECKLE INTERFEROMETRY

摘要

We develop a procedure for the experimental investigations of the deformation and fracture of specimens of coal-plastic composites. A schematic diagram of the experimental installation is presented and the results of investigations are analyzed. We also show the efficiency of electronic speckle interfer-ometry for the detection of defects in coal-plastic composites and estimation of their critical stress-strain state.