Issue 41

J. Klon et alii, Frattura ed Integrità Strutturale, 41 (2017) 183-190; DOI: 10.3221/IGF-ESIS.41.25 189 Figure 11 : Value of the fracture energy G F(theor) dissipated during the crack propagation for all variants of numerical models – obtained from theoretical calculation. Figure 12 : Deviation between the values of G F(num) and G F(theor) dissipated during the crack propagation for all variants of numerical models. C ONCLUSIONS he paper presents a study on the impact of the value of the specific fracture energy inputted into FE software (considering the fracture failure) on the amount of the energy dissipated during quasi-brittle fracture. Three-point bending tests of specimens with different size and initial notch length was subject of this study. The amount of the dissipated energy was examined by using two methods. The first method consists in the numerical FEM analysis; the amount of the energy was obtained from the area under the loading curve obtained from numerical simulations. The latter T