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Unformatted text preview: PLANE STRESS ANALYSIS OF GUSSET PLATE T9-1 TUTORIAL T9 PLANE STRESS ANALYSIS OF GUSSET PLATE Determine the deformation and plane stress state of the -inch thick steel gusset plate shown using Abaqus/CAE, observing the stress concentration in the fillet and the bending stress in the lower flange. Use the eight-node quadratic isoparametric element with reduced integration. 1 The plate has four identical embossed bolt holes where the thickness is increased locally. The inside perimeters of the two lower holes are completely fixed against displacement. The bolt load P = . 5 kip acting downward on the two upper holes bears on the lower half of the inside edge of the hole. All dimensions are in inches. Abaqus/CAE features and modeling skills addressed in the tutorial include: A. Preprocessing: (a) Partitioning to accommodate regions having different thickness (b) Distributing concentrated loads at Reference Points. B. Solution Processing: (a) Meshing with quadrilateral elements (b) Using eight-node quadrilateral elements with reduced integration (c) Plane stress analysis. C. Post-processing: (a) Contour plots of displacements and stresses (b) Graphing stress results using &quot;Point list.&quot; 1 The Abaqus/CAE element library does not contain the nine-node, biquadratic isoparametric plane stress element. Alternatively, the Abaqus/Standard element library does contain a 9-node shell element that in theory could be used in a degenerate form. It also contains the 27-node triquadratic element, which is the extension to 3D of the two-dimensional 9-node biquadratic (Ch. 10). PLANE STRESS ANALYSIS OF GUSSET PLATE T9-2 * Launch Abaqus/CAE and create a model database called GussetPlate. Start\All Programs\Abaqus 6.8-2\ Abaqus CAE &gt;select Create Model Database * The new model database has the default name Model-1. Rename it GussetPlate. Model\Rename\Model-1 &gt;&quot; GussetPlate &quot; &gt;OK * Save the model database (the .cae extension will append automatically). File\Save As... &gt;&quot;GussetPlate&quot; &gt;OK =============================================================== PREPROCESSING PHASE * Create a new part in the form of a deformable, planar structure (Base Feature is Shell). Its basic pattern is that of an inverted L-shaped, flat metal part having thickness 0.25 inches. Circumferences of the upper bolt holes are halved to provide bearing surfaces for application of bolt loads....
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