Issue 50

Ch. F. Markides, Frattura ed Integrità Strutturale, 50 (2019) 451-470; DOI: 10.3221/IGF-ESIS.50.38 470 [43] Gdoutos, E.E. (2016). The optical method of caustics, Optics and Lasers in Engineering , 79, pp. 68–77 [44] Younis, N.T. (2011). Designing an optical mechanics experiment, W. Transactions Eng. Tech. Educ., 9(3), pp. 137– 144. [45] Muskhelishvili, N.I. (1963). Some Basic Problems of the Mathematical Theory of Elasticity, Noordhoff, Groningen, The Netherlands. [46] Markides, Ch.F. and Kourkoulis, S.K. (2016). The influence of jaw's curvature on the results of the Brazilian disc test, J. Rock Mech. Geotech. Eng., 8(2), pp. 127–146. [47] ISRM (1978). Suggested methods for determining tensile strength of rock materials, Int. J. Rock Mech. Min., 15, pp. 99–103. [48] Theocaris, P.S. (1981). Elastic stress intensity factors evaluated by caustics, in “Mechanics of Fracture, Vol. 7 Experimental evaluation of stress concentration and intensity factors. Useful methods and solutions to experimentalists in fracture mechanics”, Sih, G.C. (ed.), Martinus Nijhoff, The Netherlands, pp. 189–252. [49] Markides, Ch.F. (2018). Contact length in discs and rings by the reflected caustics, Procedia Struct. Integr., 10, pp. 163–170. [50] Kourkoulis, S.K., Ganniari-Papageorgiou, E., Mentzini, M. (2010). Dionysos marble beams under bending: A con- tribution towards understanding the fracture of the Parthenon architraves, Eng. Geol., 115 (3-4), pp. 246–256, 2010. [51] Kourkoulis, S.K., Ganniari-Papageorgiou, E. (2010). Experimental study of the size- and shape-effects of natural building stones, Constr. Build Mater., 24(5), pp. 803–810. [52] Kourkoulis, S.K., Exadaktylos, G.E., Vardoulakis I. (1999). U-notched Dionysos-Pentelicon marble in three point bending: The effect of nonlinearity, anisotropy and microstructure, Int. J. Fracture, 98(3-4), pp. 369–392. [53] Exadaktylos, G.E., Vardoulakis, I., Kourkoulis, S.K. (2001). Influence of nonlinearity and double elasticity on flexure of rock beams – I. Technical theory, Int. J. Solids Struct., 38(22-23), pp. 4091–4117. [54] Exadaktylos, G.E., Vardoulakis, I., Kourkoulis, S.K. (2001). Influence of nonlinearity and double elasticity on flexure of rock beams - II. Characterization of Dionysos marble, Int. J. Solids Struct., 38(22-23), pp. 4119–4145. [55] Vardoulakis, I., Exadaktylos, G.E., Kourkoulis, S.K. (1998). Bending of marble with intrinsic length scales: A gradient theory with surface energy and size effects, J. Phys. IV, 8, pp. 399–406. [56] Kourkoulis, S.K., Prassianakis, I., Agioutantis, Z., Exadaktylos, G.E. (2006). Reliability assessment of the NDT results for the internal damage of marble specimens, Int. J. Mater. Prod. Tec., 26(1/2), pp. 35–56. [57] Kourkoulis, S.K., Pasiou, E.D., Dakanali, I., Stavrakas, I., Triantis D. (2018). Notched marble plates under tension: Detecting pre-failure indicators and predicting entrance to the “critical stage”, Fatigue Fract. Eng. M., 41(1), pp. 776– 786. [58] Kourkoulis, S.K., Pasiou, E.D., Dakanali, I., Stavrakas, I., Triantis D. (2018). Notched marble plates under direct tension: Mechanical response and fracture, Constr. Build. Mater., 167, pp. 426–439. [59] Kourkoulis, S.K., Dakanali, I., Pasiou, E.D., Stavrakas, I., Triantis D. (2017). Acoustic Emissions versus Pressure Stimulated Currents during bending of restored marble epistyles: Preliminary results, Fracture Struct. Integr., 41, pp. 536–551. [60] Kourkoulis, S.K., Pasiou, E.D., Dakanali, I., Stavrakas, I., Triantis D. (2018). Mechanical response of notched marble beams under bending versus acoustic emissions and electric activity, J. Theor. Appl. Mech., 56 (2), pp. 523–547.