StressCheck Tutorial: 3D Modeling of a Skin-Stiffener-Fasteners Assembly (Partial Contact)
Abstract: Modeling of a 3D integrated skin/fasteners (i.e. “plugs”) and stiffener assembly for a partial multi-body contact analysis in which only the stiffener stresses are of interest. In-plane axial loads only, in which the stiffener/skin load ratio is 0.55. Defining parts for each subassembly for easier creation and assignment of contact zones. Model pre-processing only.
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“Accurate and reliable stresses and Stress Intensity Factors are required for determination of static and residual strength and for crack growth analyses in analysis tools such as AFGROW. For some geometries, industry solutions are either insufficient or nonexistent. The geometry, applied forces, and crack shapes and dimensions must be modeled reasonably well to obtain useful engineering data. The p-version finite element software StressCheck® (ESRD, Inc., St. Louis, Missouri, USA) is used to demonstrate how accurate finite element solutions can lead to good quality engineering analysis.”