Determination of the mechanical properties distribution of the sample by tomography data

Abstract

© Published under licence by IOP Publishing Ltd. Structural characteristics of the material should be taken into account while the problems of determining the stress-strain state of porous structures are solved. Describing microstructure of porous media is important for inhomogeneous mechanics. Natural experiments are expensive, that's why nowadays it is popular to use simulation with computer tomography data. These study presents methods to determine mechanical and microstructural properties distribution of the object. Methods were tested on porous samples. Two-phase liquid polyurethane plastics of cold curing Lasilcast was used in research. Produced porous samples was scanned by Vatech PaX-I 3D. Received data were mesh by subvolumes. For every subvolume porosity, fabric tensor and elasticity tensor were calculated. Results were analyzed and compared with natural experiments.