1. Analysis of stresses and strains near the end of a crack traversing a plate;Irwin;J. Applied Mech.,1957
2. Experimental techniques in fracture mechanics;Kobayashi,1973
3. Determining K and related stress-field parameters from displacement fields;Barker;Exp. Mech.,1970
4. Local yielding around a crack tip in plexiglas;Theocaris;J. Applied Mech.,1970