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Structural mechanics
Structural mechanics

Non-linear Simulation Using Ansys Mechanical

Understanding large deformations, contact and nonlinear materials

Overview

Training eLearning Advanced

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

Benefits
  • 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.

Test the first module for 30 days free of charge

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
CAE Engineer, CADFEM Germany GmbH, Chemnitz
Dr.-Ing. Markus Kellermeyer
Head of Digital Learning Lab, CADFEM Germany GmbH, Grafing
Dario Rüegg
Engineering Services, CADFEM (Suisse) AG, Aadorf
Vincent Constantin
Engineering Services, CADFEM (Suisse) AG, Aadorf
Dr. Ing. Benoit Fontenier
CAE Engineer - Support, CADFEM France SAS
Bernard Feuillard
Engineering Services, CADFEM (Suisse) AG, Renens

Placement in the CADFEM Learning Pathway

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Test the first module for 30 days free of charge

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Test the first module for 30 days free of charge

Get a first impression and test the first eLearning module of this training course without any obligation. No costs, no notice period.

Not the right offer or date?

Whether eLearning, classroom courses, live online training or customized workshops - together we identify the best option for you.

What CADFEM customers are saying

 Miriam Horak Mechanical engineer - Project Management Special Applications, STIWA Holding GmbH
Miriam Horak
Mechanical engineer - Project Management Special Applications, STIWA Holding GmbH

The CADFEM training 'Non-linear Simulations Using Ansys Mechanical' was very entertaining, and the content was very well-structured. This is exactly how a course should be. Many thanks again to the instructor.

Dr.-Ing. Fabian Findeisen Business Development, CADFEM Germany GmbH, Chemnitz
Dr.-Ing. Fabian Findeisen
Business Development, CADFEM Germany GmbH, Chemnitz

The course ‘Non-linear Simulation with Ansys Mechanical’ was excellently prepared from a didactic point of view. The passion of the instructor was constantly motivating, and the participants were actively involved in the online training. Looking forward to the next one!

 Georg Heidtmann
Georg Heidtmann

The course on non-linear simulation with Ansys Mechanical is a very good supplement to the CADFEM contact seminar, because it reveals the causes of convergence problems and how they can be solved.


The CADFEM eLearning Nonlinear Simulation with Ansys Mechanical offers a user-friendly learning environment. The course focuses on understanding the mechanical problem, supported by continuous practice with Ansys Workbench. I particularly like the fact that the instructor addresses the limitations of the simulation, thus underlining his technical competence.

Do you have questions on the training or the eLearning?

When will I receive the final confirmation for my training booking?

Straight after you sign up, an automatic confirmation of receipt will be sent to the email addresses you provided. Once you have successfully verified the data you provided, you will receive your personalized sign-up confirmation, containing further information on course fees, the billing address, etc., by email within two to three working days.  

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.

When is the sign-up deadline for a training?

Training places will generally be allocated based on the order in which attendees sign up. For this reason, we always recommend booking for your desired date as early as possible.

As long as a coures still has free places, it can be booked.

At what time do the training courses begin and end?

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). 

Can I test the eLearning offer without obligation?

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.

How much time should I allow for an 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.

For how long can I access the learning content?

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.

Business Development Manager