Practical Finite Element Model Techniques
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| Linear Static Analysis of a Steel Stamping: Create a MSC.Nastran analysis model comprised of CQUAD4 elements, create multiple loading conditions, prepare an input file, and visualize analysis results. (NAS105) |
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| The Essence of Result Post-Processing: Manually create the geometry for the tension coupon, manually define material and element properties, apply symmetric boundary conditions, and generate a fringe plot. (NAS105) |
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| Modal Analysis of a Circular Plate: Reduce the model to a 30 degree section, produce a Nastran input file, submit the file for modal analysis. (NAS105) |
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| Elastic Stability of a Plate: Produce a Nastran input file, submit the file for analysis in MSC.Nastran, and find the first five natural modes of the plate. (NAS105) |
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| Multipoint Constraints Relative Motion (Part 1): Define time-varying excitation, create a MSC.Nastran dynamic math model, submit the file for analysis, and compute nodal displacements. (NAS105) |
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| Multipoint Constraints Relative Motion (Part 2): Define time-varying excitation, create a MSC.Nastran dynamic math model, submit the file for analysis, and compute nodal displacements. (NAS105) |
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| Non-Linear Load Balancing: Create 3 springs with different spring constants (K), implement different loadings, and simulate multiple boundary conditions with MPC's. (NAS105) |
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| Comparison of RBE2 vs. RBE3: Demonstrate the difference between two rigid body elements, run a linear static analysis, create a deformation plot, and review the results. (NAS105) |
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| Shear and Moment Reactions - Linear Static Analysis with RBE3: Create a geometric representation of the bolts, use the geometry model, idealize the rigid end, run a linear static analysis, and visualize analysis results. (NAS105) |
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| Shell-to-Solid Element Connector(RSSCON): Follow the instructions for the exercise. (NAS105) |
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| The Effect of Multiple Coordinate System: Create a cantilever beam model, assign different coordinate systems as reference, run a linear static analysis, modify reference and displacement coordinate systems, and compare the analysis results. (NAS105) |
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| Load Analysis of a Beam (using a point force and moment): Construct a ld representation of a beam, account for induced moment from an off-center compressive load applied on the tip, review analysis results, recover element forces. (NAS105) |
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| Load Analysis of a Beam (using an offset): Model the beam with an offset, idealize the eccentric load, prepare an input file, review analysis results, and recover element forces. (NAS105) |
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| Load Analysis of a Beam (using a Rigid Bar): Account for a beam offset, prepare an input file, review analysis results, and recover element forces. (NAS105) |
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| Plate Characteristics: Model a plate with 2D shell elements, define material properties, define element properties, apply loads and boundary conditions, and submit the model to MSC.Nastran for analysis. (NAS105) |
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| Plate Characteristics: Modify the plate elements from lesson 14a to bending panels, submit the new model for analysis, and post-process results and compare with results from 14a. (NAS105) |
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| Plate Characteristics: Create a plate model, manually define material and element properties, fix the two ends of the surface, apply pressure onto the top surface of the plate, and run an analysis. (NAS105) |
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| Linear Static Analysis of a Simply-Supported Stiffened Plate: Create a geometric representation of a stiffened plate, use the geometry model, prepare an input file, visualize analysis results, and understand the differences in PSHELL and PSHEAR. (NAS105) |
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| Mesh Transition: Perform a transition using an intermediate belt of triangular elements, perform a transition using an elastic interpolation element, apply multiple loadings, and compare results. (NAS105) |
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| Inertia Relief: Create a free-free structure under a line load, perform a static analysis using inertia relief, examine the effect of the support point, and compare results. (NAS105) |
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| Linear Static Analysis of a Spring Element (CELAS): Modify nodal analysis, define bar elements, submit the model, apply a rigid body, re-submit the model, and compare results with a hand calculation. (NAS105) |
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| Modal Analysis of a Flat Plate: Produce an input file, submit the file for analysis, find the first five natural frequencies. (NAS105) |
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Modal Analysis of a Flat Plate using Static Reduction: Reduce the dynamic math model, produce an input file, submit for analysis, and find the first five things. (NAS105) |
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| Direct Transient Response Analysis: Define time-varying excitation, produce an input file, submit the file for analysis, and compute nodal displacements for desired time domain. (NAS105) |
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| Modal Transient Response Analysis: Define time-varying excitation, produce an input file, submit that file, and compute nodal displacements. (NAS105) |
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| Direct Frequency Response Analysis: Define frequency-varying excitation, produce an input file, submit that file, and compute nodal displacements. (NAS105) |
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| Modal Frequency Response Analysis: Define frequency-varying excitation, produce an input file, submit that file, and compute nodal displacements. (NAS105) |
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| Modal Analysis of a Beam: Perform normal modes analysis, submit the file, and find the first three natural frequencies and mode shapes of the beam. (NAS105) |
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| Normal Modes with Differential Stiffness: Analyze a stiffened beam, produce an input file, submit for analysis, and find normal modes. (NAS105) |
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| Geometric Linear Analysis of a Cantilever Beam: Demonstrate the use of geometric linear analysis, observe the behavior, create an accurate deformation plot, and create a plot of the load factor vs. displacement. (NAS105) |
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| Geometric Nonlinear Analysis of a Cantilever Beam: Demonstrate the use of geometric nonlinear analysis, determine the behavior of the cantilever beam, create an accurate deformation plot, create a plot of displacement, and create a plot of load factor vs. displacement. (NAS105) |
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| Nonlinear Elastic Material Properties: Demonstrate the use of nonlinear elastic material properties, create two nonlinear elastic materials, create two rods, apply appropriate loads, and run a nonlinear analysis. (NAS105) |
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| Elasto-Plastic Deformation of a Thin Plate: Demonstrate the use of elasto-plastic material properties, create an accurate deformation plot, and create an XY plot of Stress vs. Strain. (NAS105) |
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| Non-Linear Gap Elements: Model the beam, find the deflection, submit the file for analysis, and find the displacement vectors. (NAS105) |
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| Non-Linear Gap Elements (using constant displacements): Model contact of beam with another object, find the maximum deflection of the beam, submit for analysis, and find the displacement vectors. (NAS105) |
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| Non-Linear Gap Elements with Non-Coincident Nodes: Model contact of beam with another object using CGAP/PGAP, find maximum deflection of the beam, submit for analysis, and find the displacement vectors. (NAS105) |
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| Non-Linear Gap Elements with Coincident Nodes: Model contact of beam with another object, find maximum deflection, find the displacement vectors. (NAS105) |
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| 2D Slideline Contact: Demonstrate the use of slideline contact, and create an accurate deformation plot. (NAS105) |
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| Spring Element with Nonlinear Analysis Parameters (large displacements off): Demonstrate how to run a simple linear analysis, demonstrate how to interpret the results, and understand the difference. (NAS105) |
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| Spring Element with Nonlinear Analysis Parameters (large displacements on): Demonstrate the effects of geometric nonlinear analysis, and demonstrate how to interpret the results. (NAS105) |
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| Spring Element with Nonlinear Analysis Parameters (Multi-Step Analysis): Demonstrate the effects of geometric nonlinear analysis, apply incremental loads, and demonstrate multiple subcase. (NAS105) |
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| Spring Element with Nonlinear Analysis Parameters (Restart a Multi-Step Analysis): Demonstrate the use of the restart feature on the previous analysis by introducting an intermediate load case. (NAS105) |
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| Spring Element with Nonlinear Analysis Parameters (filter using restart): Demonstrate another use of the restart feature. (NAS105) |
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| (Untitled): Optimize the following three-bar truss problem subject to static loading. (NAS105) |
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| (Untitled): Minimize the amount of material used for constructing the following box. This workshop also illustrates the use of equation writing capabilities in optimization. (NAS105) |
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| (Untitled): Design the following frame to match the prescribed displacements at grid points 1 and 5, and illustrate the importance of scaling optimization. (NAS105) |
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| (Untitled): Calculate the design sensitivity coefficients for the following spring/mass system. (NAS105) |
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| Linear Static Analysis of a Freebody Truss: Create a finite element model by explicitly defining node locations, define an analysis model, prepare an input file, and visualize analysis results. (NAS105) |
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| PBEAML Exercise |
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| Definition of Weight and Inertia Loading: Import the unigraphics model and change it into a parametric solid, and mesh the parametric solid. (NAS105) |
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| Definition of Weight and Inertia Loading: Apply boundary condition and gravity load to the model, utilize the WTMASS option, and compare results. (NAS105) |
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| Definition of Weight and Inertia Loading: Create an axisymmetric model, apply axisymmetric boundary conditions, analyze the axisymmetric model, and compare result to the full model. (NAS105) |
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| Cable Tension: Demonstrate the use of elastic-plastic material properties, create an enforced displacement, run a nonlinear static analysis, and create an accurate deformation and fringe plot of the model. (NAS105) |
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