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SimAcademy Webinar Archive: Super-Plastic Forming of High Specific Strength Aluminum Alloys

There has been a growing demand for more fuel efficient vehicles than before to reduce the fuel consumption & air pollution. To make the vehicles more fuel efficient companies are looking to reduce the weight of vehicles without compromising safety aspects of the vehicle. This has been driving the automobile industry to explore the possibility of usage of high specific strength material such as Aluminium. Aluminium has excellent characteristics such as high specific strength, good formability, good corrosion resistance & recycling potential

SimAcademy Webinar Archive: FEA Model Checking Using Patran and MSC Nastran

This session will discuss several different suggestions regarding model checking methods available to Patran/MSC Nastran users. Some of these will include Solution Specific Diagnostics, Standard FEA Diagnostics and User Requested Diagnostics. The objective of this session will be to inform analysts about different methods to use before executing a new or existing model.

SimAcademy Webinar Archive: Fluid Structure Interaction with Dytran

Dytran is a powerful explicit solver that can be used to simulate highly nonlinear, short duration events such as impact, car crash, drop test, fuel tank sloshing, occupant safety, explosion, ballistics, bird strike, etc. Lagrangian and Eulerian solvers are implemented to solve the structural and fluid domains of the model. Algorithms allowing interactions between the structure and fluid are introduced so that the fluid flow can deform the structure, and this structure deformation can in turn influences the fluid flow. Topics for this session include: Fluid Structure Interaction (FSI) analysis implementation Coupling Surfaces concept Eulerian Boundary Conditions General Coupling, Fast Coupling and ALE Coupling Techniques

SimAcademy Webinar Archive: MSC Explore - A Tool for Post Processing Results Data for Big Models Across Multiple Load Cases.

MSC Explore is a tool developed to enable rapid identification and visualization of critical design results from MSC Nastran analyses. This is a single program with many capabilities. MSC Explore provides a new way of looking at MSC Nastran results across multiple load cases and multiple results files. Instead of the traditional one—load-case at a time approach, MSC Explore uses an efficient GUI interface for selecting and viewing results across all results. The single tool supports Static, Transient, and Frequency Response Analyses Results, and produces web base HTML and an ASCII text output in addition to graphical output.

SimAcademy Webinar Archive: Tips and Tricks - Troubleshooting Marc/SOL600 Models

When tackling an engineering analysis problem, very seldom we’ll find a problem that is truly linear – as engineers, we always make simplifying assumptions and whenever possible, convert the problem to a linear analysis because they are easier to handle. However, the reality is that in most cases nonlinearities must be taken into account and analysts frequently run into convergence problems. The approach taken to solve a nonlinear problem can be as important as the convergence parameters used and understanding how they work can be the difference between a smooth project or a problematic one.

SimAcademy Webinar Archive: Adams - Incorporating Flexibility Using ViewFlex

Sometimes it’s not clear how the flexibility of a part will affect the dynamics of a particular system. We can add compliance with bushings and/or beams, but this may simplify the problem too much. At the same time, we might not have the time to wait for the structures group to generate a flexible body from a detailed FEM. Adams/ViewFlex provides us with a method to quickly add the flexibility for a complex part to find out how it affects the system behavior. This session of SimAcademy will run through the basics of creating a flexible body using Adams/ViewFlex. Examples will include meshing the part, defining attachment points, selecting the number of modes, including stress modes, along with some guidelines, best practices and more.

SimAcademy Webinar Archive: Marc Material Model, Part I

Marc, as well as SOL 400 and SOL 600 of MSC Nastran, is recognized for its nonlinear capability worldwide. Since nonlinearity includes both large deformation and nonlinear materials, Marc has an extensive material library. This is the first part of the presentation on Marc’s materials in SimAcademy, and it will cover the following most-often-used material models to run nonlinear analyses: Overview of Marc’s material properties Elastic-plastic model Creep model Viscoelastic model Viscoplastic model Necessary tests needed for the above models. Experimental curve fitting using the testing data to get the material properties for above models. This presentation will show you how to enter the material properties in Mentat or Patran.

SimAcademy Webinar Archive: Radiation Using SindaRad and Advection in Sinda.

The Sinda family of thermal design products has been relied on by aerospace and high technology companies worldwide for 50 years. This seminar will show 2 of its capabilities, viz. radiation and advection.

SimAcademy Webinar Archive: Quick Patran Display Tips and Tricks

Sometimes it’s the simplest things that may not be the most obvious. This brief presentation will introduce a few tips on the subject of Patran display options that you may have not known about, but that should prove to be useful as you face more complicated issues. Five display tips and tricks will be presented, from the very rudimentary and mundane, to the slightly advanced and obscure. Most of these tips are taken from an article that was published in the last edition of Simulating Reality magazine.

SimAcademy Webinar Archive: Aeroelastic Response Analysis in MSC Nastran

An overview of SOL 146 aeroelastic response analysis will be presented to demonstrate the use of frequency and time domain prediction of a simple wind tunnel flutter model. The model description and actual flutter test model results are documented in the following reference (Tuovila, W. J. and John Locke McCarty, Experimental Flutter Results from Cantilever-Wing Models at Mach Numbers Up to 3.0, NACA RM L55E11, Langley Aeronautical Laboratory, Langley Field, Va., June 14, 1955). The MSC Nastran Aeroelastic Analysis User’s Guide Section 8.6 also documents the 15 degree swept wing model with constant chord and compares the predicted results of the KE-method of flutter analysis with the experimental results.

SimAcademy Webinar Archive: Patran Customization - Tailoring Your Patran Work Environment

Patran has many options for customizing the GUI and tailoring it to your needs. Topics for this session include: Startup and template files Command-line arguments Environment variables Shortcut keys Editing the toolbar RMB menus

SimAcademy Webinar Archive: SimXpert_FiberSIM Link for a Composite Panel Analysis

SimXpert and FiberSIM interconnection is a progressive link between the CAD draping and FEM analysis in respect to composite part conception phases. The first level, based on initial layups, is used for pre sizing and optimization. The second level, including draping directions and thickness variations, is used for part validation and certification. These two approaches will be presented on a composite panel case study. Topics for this session include: Introduction to FiberSIM. What is the composite CAD-CAE link process? What are the two SimXpert integration process levels? Demonstration on a composite panel.

SimAcademy Webinar Archive: Simulate Composite Damage and Delamination Using Marc and MSC Nastran

The design of composite structures has traditionally been done as a linear analysis, using Failure Indices to estimate 1st Ply Failure of the structure. More sophisticated techniques are needed to predict the performance of the structure as additional plies fail or as delaminations between plies take place. While the analysis becomes nonlinear, it is now possible to predict the degradation of the structure and its ultimate capacity. This session will examine some of the advanced composites analysis tools available from MSC Software in Marc and MSC-Nastran.

SimAcademy Webinar Archive: MSC Nastran Multipoint Constraint Equations (MPC) and Rigid Element Applications

MSC Nastran provides the engineer with various methods to define constraint conditions in an analysis model. Single point constrants (SPC), enforce a displacement at a single grid. Multipoint constrains (MPC) enforce a constraint condition that involves a number of grids. Rigid elements provide a convenient method to input more advanced MPC equations for a variety of engineering applications.

SimAcademy Webinar Archive: Results Post Processing Using Patran (Part 1 of 2 Parts)

Patran contains powerful post processing routines packaged into an easy-to-use Graphical User Interface. The Patran post processor can view many stress result types, including yet not limited to, Von Mises, Principles, Shear, individual components of stress. Topics for this session include: What is a Patran results file? How do I get the results file into Patran? How do I make a visual fringe plot of my stresses? Can I change my stress plot to look different? Do I have to look at fringe plots or are there other ways to visualize results?

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