Analysis Design Productivity Limited
Explicit Dynamics with ANSYS/LSDYNA.
Audience
This course is aimed at experienced ANSYS users who wish to enhance their technical capabilities by gaining detailed knowledge of how to perform ANSYS/LSDYNA calculations. A basic overview of associated theory is given and the essential steps of conducting such an analysis are reviewed.
Recommended background knowledge
- Engineering degree or engineering experience.
- Familiarity with ANSYS (Course S_I1 or equivalent experience).
- Familiarity with ANSYS nonlinear capabilities (Course S_NL1 or equivalent experience).
Topics Covered
- Introduction - background, applications, techniques, time step size, file organization
- Elements - reduced integration, hourglassing, guidelines
- Parts - definition, creation, updating
- Materials - models available, creation, guidelines
- Solution - overview, application of loads, constraints, initial velocities, rigid bodies, damping, spotwelds
- Contact - algorithms available, definition, creation, control options, guidelines
- Simulation Control - basic control options, mass scaling, usage, editing LSDYNA input file
- Postprocessing - overview, animation, time-history postprocessing
- Restarting - definition, reasons why, types of restart, procedure
- Explicit-Implicit Solutions - definition, overview, springback, procedure
- Implicit-Explicit Solutions - definitions, guidelines, applications, procedure
- Drop Test Module - procedure to use the Drop Test Module to perform a drop test analysis
Sample Workshops
- Simulating a deep drawing process
- Contact analysis of a box
- Impact analysis of a bar into a plate
- Spotweld failure analysis
- Applying initial velocity to a cube impacting a wall
- Buckling of a beam
- Bending of a pipe by a punch
- Performing a small restart on a rubber block impacting a wall
- Springback analysis of a metal stamping operation
- Failure of a fan blade - containment analysis
- Drop test analysis of a screwdriver
Objectives
- To be able to determine which problems are best solved using an explicit code
- Knowledge of the steps required for performing an ANSYS/LSDYNA analysis
- Practical experience on how to efficiently obtain and analyze results for an explicit dynamics analysis
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