Issue 49

Frattura ed Integrità Strutturale, 49 (2019); International Journal of the Italian Group of Fracture I Table of Contents Y. Chang, L. Zheng, X. Pan, Y. Hong Further investigation on microstructure refinement of internal crack initiation region in VHCF regime of high-strength steels .……………………………………………………….... 1-11 E. Breitbarth, T. Strohmann, M. Besel, S. Reh Determination of Stress Intensity Factors and J integral based on Digital Image Correlation ….. 12-25 J. A. O. González, J. T. P. de Castro, G. L. G. Gonzáles, M. A. Meggiolaro, J. L. de França Freire Verification of the ΔK eff hypothesis along the fatigue crack path in thin and thick Al specimens 26-35 Yu. G. Matvienko Comparison of the constraint parameters in elastic-plastic fracture mechanics ………………... 36-43 G. Meneghetti, A. Campagnolo, F. Berto Averaged strain energy density estimated rapidly from the nodal stresses by FEM for cracks under mixed mode loadings including the T-stress contribution ……………………………. 53-64 L. Malíková, H. Šimonová, B. Kucharczyková, P. Miarka Multi-parameter fracture mechanics: crack path in a mixed-mode specimen ………………… 65-73 G. L. G. Gonzáles, J. A. O. González, J. T. P. de Castro, J. L. de França Freire Using DIC techniques to measure strain ranges inside the cyclic plastic zone ahead of a fatigue crack tip …………………………………………………………………………. 74-81 G. Meneghetti, M. Ricotta, G. Pitarresi On relation between J-integral and heat energy dissipation at the crack tip in stainless steel specimens ………………………………………………………………………..... 82-96 S. Seitl, P. Miarka, V. Růžička, L. Malíková, A. S. Cruces, P. Lopez-Crespo Approximation of the crack-tip field in fatigue cracks in bridge steel specimens: DIC analysis of different constraint levels …………………………………………………………..... 97-106 T. Profant, J. Pokluda The ab-initio aided strain gradient elasticity theory: a new concept for fracture nanomechanics …. 107-114 P. Trusov, E. Makarevich, N. Kondratev Multi-level model describing phase transformations of polycrystalline materials under thermo- mechanical impacts ………………………………………………………………… 125-139