Issue 50

I. Stavrakas et alii, Frattura ed Integrità Strutturale, 50 (2019) 573-583; DOI: 10.3221/IGF-ESIS.50.48 582 [8] Stavrakas, I., Triantis, D., Agioutantis, Z., Maurigiannakis, S., Saltas, V., Vallianatos, F. and Clarke, M. (2004). Pressure stimulated currents in rocks and their correlation with mechanical properties, Nat. Hazards Earth Sys., 4, pp. 563–567. [9] Vallianatos, F., Triantis, D., Tzanis, A., Anastasiadis, C. and Stavrakas, I. (2004). Electric earthquake precursors: From laboratory results to field observations, Phys. Chem. Earth, 29, pp. 339–351. [10] Stavrakas, I., Anastasiadis, C., Triantis, D. and Vallianatos, F. (2003). Piezo Stimulated currents in marble samples: Pre- cursory and concurrent - with - failure signals, Nat. Hazards Earth Sys., 3, pp. 243–247. [11] Triantis, D., Anastasiadis, C., Vallianatos, F., Kyriazis, P. and Nover, G. (2007) Electric signal emissions during repeated abrupt uniaxial compressional stress steps in amphibolite from KTB drilling, Nat. Hazards Earth Sys., 7, pp. 149–154. [12] Kyriazopoulos, A., Anastasiadis, C., Triantis, D. and Brown, J.C. (2011). Non-destructive evaluation of cement-based materials from pressure stimulated electrical emission: Preliminary results, Const. Build. Mater., 25, pp. 1980–1990. [13] Stergiopoulos, C., Stavrakas, I., Triantis, D., Vallianatos, F. and Stonham, J. (2015). Predicting fracture of mortar beams under three-point bending using non-extensive statistical modelling of electric emissions, Physica A, 419, pp. 603–611. [14] Cartwright-Taylor, A., Vallianatos, F. and Sammonds, P. (2014). Superstatistical view of stress-induced electric current fluctuations in rocks, Physica A, 414, pp. 368–377. [15] Zhonghui, L., Wang, E. and He, M. (2015). Laboratory studies of electric current generated during fracture of coal and rock in rock burst coal mine, J. Mining, 2015: 235636. [16] Sun, M., Liu, Q., Li, Z. and Wang, E. (2002). Electrical emission in mortar under low compressive loading, Cement Concrete Res., 32, pp. 47–50. [17] Archer, J.W., Dobbs, M.R., Aydin, A., Reeves, H.J. and Prance, R.J. (2016). Measurement and correlation of acoustic emissions and pressure stimulated voltages in rock using an electric potential sensor, Int. J. Rock Mech. & Mining Sci., 89, pp. 26–33. [18] Dann, D., Demikhova, P., Fursa, T. and Kuimova, M. (2014). Research of electrical response communication para- meters on the pulse mechanical impact with the stress-strain state of concrete under uniaxial compression, IOP Conf. Series: Materials Science and Engineering, 66: 012036. [19] Shiotani, T., Fujii, K., Aoki, T. and Amou, K. (1994). Evaluation of progressive failure using AE sources and improved b-value on slope model tests, Prog. Acoust. Emission, VII, pp. 529–534. [20] Tassogiannopoulos, A.G. (1986). A contribution to the study of the properties of structural natural stones of Greece (in Greek), National Technical University of Athens, Doctoral Dissertation, Athens, Greece. [21] Exadaktylos, G.E., Vardoulakis, I. and 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, pp. 4119–4145. [22] Theocaris, P.S. and Coroneos, E. (1979). Experimental study of the stability of Parthenon (in Greek). Publications of the Academy of Athens, 44, pp. 1–80. [23] Zambas, C. (2004). Mechanical properties of Pentelik marble [in Greek], Ministry of Culture, Committee for the Pre- servation of Parthenon Publications, Athens, Greece. [24] Vardoulakis, I. and Kourkoulis, S.K. (1997). Mechanical properties of Dionysos marble, Final report of the European Union Environment project EV5V-CT93-0300 “Monuments under seismic action”, Nat. Tech. Univ. Athens, Athens. [25] Labuz, J.F., Bridell J.M. (1993). Reducing frictional constraint in compression testing through lubrication, Int. J. Rock Mech. Min. Sci. & Geomech. Abstr., 30, pp. 45l–455. [26] Drescher, A. and Vardoulakis, I. (1982). Geometric softening in triaxial test on granular materials, Geotechnique, 32, pp. 291–303. [27] Read, H.E. and Hegemier, G.A. (1984). Strain softening of rock, soil and concrete - A review article, Mech. Mater., 3(4), pp. 271–294. [28] Van Vliet, M.R.A. and van Mier, J.G.M. (1995). Concrete under uniaxial compression, Report 25.5-95-9, TU Delft, Faculty of Civil Engineering, The Netherlands. [29] Kourkoulis, S.K. (2012). Critical aspects of the mechanical behaviour and failure of Dionysos marble under direct ten- sion, J. Serbian Soc. Comp. Mech., 6(1), pp. 199–215. [30] Kourkoulis, S.K., Exadaktylos, G. and Vardoulakis, I. (2000). The degradation of the mechanical properties of natural building stones: An “elastic-damage” model. In: Structural Integrity in the 21 st Century. The lifetime of plant, struc- tures and components: evaluation, design, extension and management, J.H. Edwards et al. (eds.), EMAS Publishing, Solihull, UK, pp.171–179. [31] Vardoulakis, I., Labuz, J., Papamichos, E. and Tronvoll, J. (1998). Continuum fracture mechanics of uniaxial com- pression on brittle materials, Int. J. Solids Struct., 35, pp. 4313–4335. [32] Van Vliet, M.R.A. and van Mier, J.G.M. (1996). Experimental investigation of concrete fracture under uniaxial com- pression, Mech. Cohes-Frict. Mat., 1(1), pp. 115–127.