Fracture Mechanics Application of an Assumed Displacement Hybrid Finite Element Procedure

References 1 Sharifi, P. and Yates, D. N., "Nonlinear Thermo-Elastic-Plastic and Creep Analysis by the Finite Element Method," AIAA Journal, Vol. 12, Sept. 1974, pp. 1210-1215. 2 Clough, R. W. and Felippa, C. A., "A Refined Quadrilateral Element for Analysis of Plate Bending," Proceedings of Second Conference on Matrix Methods in Structural Mechanics, AFFDL-TR68-150, Oct. 1968, Air Force Flight Dynamics Lab., Wright-Patterson Air Force Base, Ohio, pp. 399-440. 3 Suarez, J. A., "Advanced Composite Wing Structures, Stability Analysis of Advanced Filamentary Composite Panels," Tech. Rept. AC-SM-8087, May 1970, Grumman Aircraft Engineering Corp., Bethpage, N.Y. 4 Kaminski, B. E. and Ashton, J. E., "Diagonal Tension Behavior of Boron-Epoxy Shear Panels," Journal of Composite Materials, Vol. 5, Oct. 1971, pp. 553-558. 5 Bushnell, D., "Stress, Stability, and Vibration of Complex Branched Shells of Revolution: Analysis and User's Manual for BQSQR4," LMSC-D243605, March 1972, Lockheed Missiles & Space Co., Sunnyvale, Calif. Also CR 2116, Oct. 1972, NASA.