Helpful Hints and Tips: 2D Cracked Bulkhead Beta Factor Sim App
Abstract: Excel VBA driver designed to generate 2D propped hole beta factors for a cracked bulkhead attachment. A graph of crack length vs. beta factors for a given configuration will be automatically output.
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The software provides a highly reliable and user-friendly production stress analysis tool that will replace the Finite Element Method (FEM) tools and failure criteria the experts currently employ for analyzing bonded joints. The software includes an FEM-based handbook format, which allows non-experts to utilize models prepared by specialists. The handbook problems include built-in failure criteria, geometric and material nonlinearities, and the modern FEM technology provides better error control and the treatment of very large aspect ratios.”
Dr. Stephen P. EngelstadTechnical Fellow, Lockheed Martin Aeronautics Company, Structural Methods and Analysis