(15 pt) After reading the paper, you decide to do a similar fracture tests using the following single edge notched tensile specimens (a) and (b) made from the same borosilicate glass (density $\rho$=2.6 g/cm$^3$, elastic modulus E = 70 GPa, yield strength $\sigma_\text{y}$=70 MPa, Poisson's ratio $\nu$=0.21, Fracture toughness $K_\text{Ic}$=0.8 MPa$\sqrt{\text{m}}$). One sample is thin and the other one is thick. Calculate the plastic zone size ($r_p$) for each specimen, are they the same?
(5 pt) Consider both specimens from question 2, is small scale yielding (SSY) condition satisfied?