1. G. L. Roderick, “Crack Propagation in Aluminum Sheets Reinforced with Boron-Epoxy,” Ph.D. Dissertation, Old Dominion University, Norfolk, VA, 1978.
2. M. M. Ratwani, “Characterization of Crack Growth in Bcnded Structures,” AFFDL-TR-77-31, Vols. I and II, 1977.
3. F. Erdogan and K. Arin, “A Sandwich Plate with a Part-Through and Debonding Crack,” Engineering Fracture Mech. J., Vol. 4, 1972.
4. R. G. Forman, V. E. Kearney, and R. M. Engle, “Numerical Analysis of Crack Propagation in Cyclic-Loaded Structures,” Trans. American Society of Mechanical Engineers, Ser. D.: J. Basic Eng., Vol. 89, No. 3, pp. 459–464, 1967.
5. C.M. Hudson, “Effect of Stress Ratio on Fatigue Crack Growth in 7075-T6 and 2024-T3 Aluminum Alloy Specimens,” National Aeronautics and Space Administration TN D-5390, 196l.