Non-linear Simulation Using Ansys Mechanical
Understanding large deformations, contact and nonlinear materials
This course provides you an introduction to the world of nonlinear simulation and enables you to understand convergence behavior. This training is offered as a 2-day course or alternatively as a self-paced eLearning course.
Duration
2 days
Prerequisites
Basic knowledge of Ansys Mechanical
Software used
Ansys Mechanical
- Familiarity with the various types of non-linearities
- Detailed know-how concerning the nonlinear simulation process
- Influence both convergence behavior and how your analysis performs
- Share experiences and discuss typical applications with attendees
Description
Nonlinear calculations have become an integral part of the development process. They enable the simulation of complex manufacturing processes and optimal resource utilization. This training provides a practical introduction to solving typical tasks where large deformations, nonlinear material models, or contacts need to be considered. You will learn about important solver settings for Ansys Mechanical and gain basic background knowledge about convergence behavior. You will also receive proven practical tips for your daily work.
In this training, you will learn how to simulate tasks with large deformations, stability problems, plasticity, hyperelasticity, and contacts. You will gain a detailed understanding of what happens in the background during the solution process and how you can positively influence the convergence behavior and performance of your analysis. In practice-oriented workshops, you will be able to immediately apply the knowledge you have attained.
This training is aimed at simulation users with basic experience with Ansys Mechanical, experienced users who want to better understand and manage convergence behavior, and project managers and decision-makers who want to formulate targeted expectations of numerical analysis and draw the right conclusions from the results.
Get a first impression and test the first eLearning module of this training course without any obligation. No costs, no notice period.
Detailed agenda for this 2-day training
Day 1
01 Nonlinear task classes and solution methods
- Classification of non-linear effects
- The Newton method, with examples
- Characteristic convergence behavior relating to different tasks
- Workshop: Tensile test on a standard specimen
02 Ansys Solver Settings
- Basic settings: Load step and time step control, iterations, convergence criteria, Newton-Raphson residuals, element violations
- Advanced settings: Newton-Raphson options, Line-search, predictor
- Special topics: arc length method, stabilization dynamic analysis, semi-implicit, restarting
- Workshop: convergence behavior with strongly differing materials
03 Geometric nonlinearities
- Examples of geometric nonlinearities: Stress-stiffening, Spin-softening, corotating element coordinate systems
- Large deformations: true strains and true stresses
- Workshop: Homogeneous uniaxial tensile test
- Demonstrator: Homogeneous simple shear test
04 Stability problems
- Classification of stability problems (buckling, Snap-through, limit loads)
- Causes of stability problems
- Eigenvalue buckling analysis
- Nonlinear stability analyses: arc length method, stabilization, transient analysis
- Workshop: stability analysis of a truss
Day 2
05 Nonlinear Materials – Plasticity
- Fundamentals of plasticity theory (flow condition, flow rule, strain hardening)
- Typical hardening models (isotropic and kinematic)
- Material definition in Ansys Mechanical
- Determination of the hardening curve using tensile test data
- Characteristic features of postprocessing
- Workshop: deep-drawing analysis
06 Nonlinear Materials – Hyperelasticity
- Overview of applications
- Basics of hyperelasticity
- Typical distortion energy functions & how to define these in Ansys
- Parameter fitting in Ansys Workbench, based on the tensile test
- Element formulations
- Workshop: the axial and torsional stiffness of a chassis bushing
07 Contact Modelling
- Contact analysis workflow
- Overview of the main contact settings: behavior, formulation, detection method, contact stiffness
- Evaluation of contacts
- Comparison of contact formulations: penalty, normal Lagrange, augmented Lagrange
- Workshop: transmissible torque of a press-fit
08 Convergence & performance
- Typical convergence problems of daily life
- General debugging strategies
- Increasing performance: choosing the right solver (direct or iterative solver) and also parallelizing the analysis (SMP and DMP)
- Special technique: nonlinear adaptive remeshing (NLAD)
- Workshop: indentation analysis with adaptive remeshing
Your Trainers
Dr.-Ing. Hendrik Donner
Dr.-Ing. Markus Kellermeyer
Dario Rüegg
Vincent Constantin
Dr. Ing. Benoit Fontenier
Bernard Feuillard
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Participant data
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As soon as the minimum number of attendees has been reached, you will receive a final training confirmation containing further information. If you have booked an on-site training, we recommend that you wait until you have received this final confirmation before booking your travel and accommodation.
If the minimum number of attendees is not reached, we reserve the right to cancel the training seven days before it is due to start at the latest. We are happy to inform you on changing your booking to an alternative date. Please note that we accept no liability for hotel or travel bookings that attendees have already made.
Usually the training courses start at 9:00 am and end at 5:00 pm of the respective local time. The actual course times will be stated in the booking confirmation. Please note that, depending on the training host, there may be a possible time shift between your and the provider's local time. Therefore all local times are provided with the valid time shift to Greenwich Mean Time (GMT).
To get a clear impression of our online learning format, we offer you a trial allowing you access to the starting module of an eLearning course of your choice. No costs, no cancellation period or anything similar. Moreover, with this free test access you can check all the technical requirements for a smooth learning process. You can easily request the free module from any eLearning course.
Each online course day comprises four eLearning modules. You should ideally allow 90 to 120 minutes of uninterrupted learning time for each module. This will allow you to acquire the knowledge provided by a module and to consolidate it through quiz questions and Ansys exercises. By dividing each module into micro learning units, you can also make good use of smaller time windows, such as on your commute.
Prerequisite for the use of the eLearning courses is the use of a personalized access to the CADFEM learning platform. When purchasing an eLearning course, access to the learning platform is 365 days. As a subscription user, access to the learning platform starts and ends with the start and end of the flat rate. With the start of a further learning product (Learning Subscription, training, eLearning), access to your content is extended by 365 days.