StressCheck Tutorial: Check Solution Degrees of Freedom (DOF)
Abstract: The model’s unconstrained degrees of freedom (DOF) for each p-level may be computed before the solution is executed by using the Check > Disk Usage option in the SOLVE! GUI. Note: the unconstrained degrees of freedom will always be larger than the solved degrees of freedom.
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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