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Structural mechanics
Structural mechanics

Contact Modeling with Ansys Mechanical

Learn how to make the right contact!

Overview

Training eLearning Advanced

Learn how to use appropriate linear and non-linear contacts & improve performance and accuracy of your assembly simulations. This training is offered as a 3-day course or alternatively as a self-paced eLearning course.

Duration
3 days

Prerequisites
Basic knowledge of Ansys Mechanical

Software used
Ansys Mechanical

Benefits
  • Understanding and appropriately selecting contact algorithms
  • Skillful usage of automated contact generation
  • Managing the convergence and accuracy of the simulation
  • Tips and tricks for daily work with contacts

Description

Contact calculations are a central part of simulation tasks in engineering. They enable the interaction of components within an assembly. A powerful tool for this task is Ansys Mechanical, which is often used to represent non-linearities in structural mechanics simulations. Contact modeling can appear complex due to the multitude of setting options and the goal of achieving a certain mechanical behavior in the contact zone. Factors such as numerical robustness, solution convergence, and result quality play a crucial role here.

The global stiffness behavior of the design is greatly influenced by the contact. Therefore, it is important to accurately determine the contact pressure and consider the role of penetration and contact stiffness. The choice of the right contact algorithm can be decisive. After this training in Ansys Mechanical, you will be able to calculate assemblies taking into account linear and non-linear contacts. You will also be able to critically evaluate the solution behavior and, if necessary, react appropriately by overriding the default settings. This will enable you to reliably manage contact calculations and achieve high-quality results. This knowledge is particularly valuable for design engineers, calculation engineers, and other simulation users.

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 3-day training

Day 1

01 Contact calculation in structural mechanics

  • Schematic sequence of a contact computation
  • Explanation of the principal procedure
  • Explanation of key terms
  • Typical analysis settings
  • Ansys file management
  • Exercise: Workflow using Hertzian contact stress

02 Contacts in Ansys Mechanical

  • Connection groups and automatic contact search in Ansys Mechanical
  • Manual contact definition
  • Contact tool and initial contact status
  • Contact search example

03 Contact detection in the solver

  • Contact detection in the solver
  • Symmetrical and asymmetrical contact
  • Pinball region and near-field
  • Trimming the contact area
  • Small sliding
  • Influence of the contact search on the convergence
  • Contact search example

04 Evaluation of contact results

  • Contact tool for contact results
  • Force reaction
  • Contact tracker
  • User-defined results
  • Output control
  • Solution information
  • Example of evaluation of contact results

Day 2

05 Contact formulation

  • Pure penalty
  • Augmented Lagrange
  • MPC
  • Lagrange
  • What consequences does the algorithm have for the model and calculation?

06 Contact stiffness and penetration

  • Penetration and contact stiffness
  • Updating the contact stiffness
  • Monitoring and adjusting the contact stiffness
  • Monitoring and controlling penetrations
  • How do I find the right stiffness?
  • Contact stiffness example

07 Initial contact condition and rigid body motion

  • Contact and rigid body motion
  • Monitoring the initial contact status
  • Contact surface offset
  • Initial penetrations
  • Rigid body motion example

08 Workshop on nonlinear contact & convergence

  • Contact and convergence, a case study
  • Finding causes for convergence problems
  • Actions to take for convergence problems
  • Evaluation of results

Day 3

09 Contact types

  • Contact types: friction, frictionless, rough, no separation, bonded
  • Overview of additional contact properties
  • Command snippets for contacts
  • Example: command snippets for contacts

10 Bonded contact

  • Bonded contact
  • Penalty vs. MPC formulation
  • Combining meshes on lines, surface and volume bodies
  • Bonded contact example

11 Contacts and connections

  • Remote points
  • Springs, beam connections and joints
  • Mass points
  • Example of remote points

12 Best practice in contact modeling

  • Summary
  • Use the right contact model
  • Avoid and resolve convergence issues
  • Correctly define the physics of contact and interpret results

Your Trainers

A selection of our lecturers, who provide you with the latest simulation knowledge and its implementation in practice

Andre Stühmeyer
CAE Engineer, CADFEM Germany GmbH, Hanover
Alexander Nolte
CAE Engineer, CADFEM Germany GmbH, Grafing
Claus Kirner
Berechnungsingenieur, CADFEM Germany GmbH, Grafing
Dr. sc. ETH Manfred Maurer
Engineering Services, CADFEM (Suisse) AG, Aadorf
Dr. Ing. Benoit Fontenier
CAE Engineer - Support, CADFEM France SAS
Luigi Cordani
Training and Support Manager, CADFEM UK Ltd

Placement in the CADFEM Learning Pathway

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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.

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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

 Andreas Pfeifer CAE engineer R&D, Beumer Maschinenfabrik GmbH & Co. KG
Andreas Pfeifer
CAE engineer R&D, Beumer Maschinenfabrik GmbH & Co. KG

Did we meet your expectations with this training? Yes! In fact, you exceeded them. Keep up the good work!

 Vanessa Keller Mechanical engineer, Pfisterer Holding AG
Vanessa Keller
Mechanical engineer, Pfisterer Holding AG

Great course! Once again, very good materials, many workshops with reference to real-world applications, and a friendly, open and communicative instructor who encouraged active participation in the course without being demanding. Very pleasant.

Marco Wyss
Mechanical Engineer, GMS Technik GmbH

The training ‘Contact Modeling with Ansys Mechanical’ was conducted with the usual high quality of CADFEM. I would like to thank the speaker for his very detailed explanations and his willingness to help.

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.

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