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Fatigue-Crack-Growth Computer Program

Royce G. Forman, V. Shivakumar, James C. Newman

Abstract

Fatigue Crack Growth (NASA/FLAGRO) computer program developed as aid in predicting growth of preexisting flaws and cracks in structural components of space systems. Is enhanced version of FLAGRO4 and incorporates state-of-the-art improvements in both fracture mechanics and computer technology. Provides fracture-mechanics analyst with computerized method of evaluating safe-crack-growth-life capabilities of structural components. Also used to evaluate tolerance to damage of structure of given design. Designed modular to facilitate revisions and operation on minicomputers. Written in FORTRAN 77.

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Key concepts: Paris' law, Minicomputer, Modular design, Fracture mechanics, Fortran, Computer science, Computer program, Structural engineering