Issue 41

M. Kurek et alii, Frattura ed Integrità Strutturale, 41 (2017) 24-30; DOI: 10.3221/IGF-ESIS.41.04 29 Figure 6 : Exemplary analysis of selected materials. Figure 7 : Exemplary analysis of selected materials. C ONCUSIONS n the basis of the analysis of the experiments as well as calculations and simulations, we can draw the following conclusions: 1. The proposed model has been developed on the basis of relations for materials in elastic-brittle state (Galileo’s hypothesis) and in elastic-plastic state (HMH hypothesis). These states are nevertheless not limiting like in case of the Carpinteri’s model. 2. The proposed model accounts for a wider range of the ratio of normal to shear stresses than the Carpintieri model. 3. The presented analysis is indispensable for the verification of the foundations and effectiveness of the new model. 4. Taking into consideration the scatter of the determined β angle and also the ratio of the fatigue limits for bending and torsion in may be noticed, that most of the materials coincide with the proposed model. 5. In the future more materials should be analyzed in order to continue the verification of the proposed model or to look for an evet better suiting model for experimental tests. O