1. [1] Irwin, G. R. Analysis of stresses and strains near the end of a crack traversing a plate, Trans. ASME, J. Appl. Mech., Volume 24 (1957), pp. 361-364
2. [2] Knott, J. F. Fundamentals of Fracture Mechanics, Butterworth and Co., Delft, the Netherlands, 1973
3. [3] Griffith, A. A. The theory of rupture, Proc. 1st Int. Conf. of Applied Mech., 1924, pp. 55-63
4. [4] Haidar, K.; Pijaudier-Cabot, G.; Dube, J. F.; Loukili, A. Correlation between internal length, fracture process zone and size effect in mortar and model materials, Mater. Struct., Volume 38 (2005), pp. 201-210
5. [5] Barenblatt, G. I. The mathematical theory of equilibrium cracks in brittle fracture, Adv. Appl. Mech., Volume 7 (1962), pp. 55-129