TO THE QUESTION OF EVALUATION OF CRACK GROWTH RESISTANCE OF STRUCTURAL MATERIALS UNDER DYNAMIC LOADING

摘要

The purpose of this paper is to present a new numerical experimental procedure, which allows determination of dynamic stress intensity factor (DSIF) of materials at high loading rates. The proposed approach allows to take into account the inertial effect, provides necessary accuracy and short time necessary for calculations. Basing on theoretical investigations, which are both uncomplicated and precise the simple relationship for specimens are presented. The experimental verification of the determination DSIF during one-and three-point bending of the beam is successfully results confirmed.