Hi everybody
I'm searching for the following papers
A.C. Kaya and F. Erdogan :"Stress Intensity Factors and COD in an Orthotropic Strip", Int J Fract (1980), pp 171-190
D. S. Dugdale "Yielding of Steel Sheets Containing Slits" J Mech Phys Solids, Vol 8 (1960), p 100-104
G I Barenblatt. The mathematical theory of equilibrium cracks in brittle fracture. Adv. Appl. Mech., pages 55-129, 1962.
Thanks for help