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Updated Fatigue-Crack-Growth And Fracture-Mechanics Software

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

Abstract

NASA/FLAGRO 2.0 developed as analytical aid in predicting growth and stability of preexisting flaws and cracks in structural components of aerospace systems. Used for fracture-control analysis of space hardware. Organized into three modules to maximize efficiency in operation. Useful in: (1) crack-instability/crack-growth analysis, (2) processing raw crack-growth data from laboratory tests, and (3) boundary-element analysis to determine stresses and stress-intensity factors. Written in FORTRAN 77 and ANSI C.

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Key concepts: Aerospace, Fracture mechanics, Paris' law, Structural engineering, Stress intensity factor, Fracture (geology), Boundary element method, Engineering