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Non-linear structural mechanics calculations with Ansys Mechanical
Understanding large deformations, contact and nonlinear materials
This workshop provides an introduction to the world of nonlinearities and the understanding of convergence behavior.
Today, nonlinear calculations are an integral part of the development process. Special materials, complex manufacturing processes and optimal resource utilization require the consideration of nonlinear effects in simulation. Do you already have experience with linear FEM? Then ...
Our offer in detail
This training is offered as a 2-day course or alternatively as
a self-paced eLearning course, in which you should invest a total of 2 learning day(s) with your own time allocation.
01 Nonlinear task classes and solution methods
- Classification of non-linear effects
- The Newton method
- Characteristic convergence behavior of different tasks
- Extensions to classical static mechanical analysis (arc length method, transient analysis)
02 Ansys Solver Settings
- Load and time step control
- Newton-Raphson options
- Convergence criteria
- Advanced settings (predictor, line search, stabilization, time integration, arc length method)
- Nonlinear diagnosis
- Restarting an analysis
- Workshop: Restarting an analysis
03 Geometric nonlinearities
- Limitations with geometric linearity
- Large displacements and large deformations
- Corotating element coordinate systems
- Typical geometrically non-linear effects: Stress-Stiffening, Spin-Softening, deformation dependent loads
- Understanding true stretching
- Workshop: Design of a reinforcement
04 Stability problems
- Causes of stability problems
- Classification of stability problems (dents, punctures, load capacity)
- Possible solutions (arc length method, stabilization, transient analysis)
- Workshop: Snap-through analysis of a strut
05 Nonlinear Materials – Plasticity
- Fundamentals of plasticity theory (flow condition, flow rule, strain hardening)
- Typical hardening models (isotropic and kinematic)
- Material definition in Ansys
- Related topics: Creep, Viscosity, Hill Plasticity
06 Nonlinear Materials – Hyperelasticity
- Overview of implementations
- Basics of hyperelasticity
- Typical distortion energy functions & definition in Ansys
- Workshop: Axial and torsional stiffness of a chassis bushing
- Related topics: Viscoelasticity, hysteresis, Mullins effect
07 Contact Modelling
- Overview of the creation and evaluation of contacts in Mechanical
- Basics of contact modelling: detection methods, formulations, pinball, penalty, Lagrange, contact stiffness
- Workshop: Contact analysis
08 Convergence, performance, accuracy
- Rigid body movements, element distortions: Typical error messages and corrective actions
- Advanced technique: adaptive meshing, semi-implicit
- Requirements for good parallel processing
- What happens after a successful analysis? (influence of numerical parameters, model development)
Today, nonlinear calculations are an integral part of the development process. Special materials, complex manufacturing processes and optimal resource utilization require the consideration of nonlinear effects in simulation. Do you already have experience with linear FEM? Then this course offers you a practice-oriented introduction to solving typical tasks in which large deformations, nonlinear material models or contacts have to be considered. Working with Ansys Mechanical, you will learn important solver settings and receive basic background knowledge, detailed explanations of convergence behavior and proven practical tips for your daily work.
- Simulation users who have gained initial experience with Ansys Mechanical and want to work on non-linear tasks
- Experienced users who want to better understand and control convergence behavior
- Project managers and decision-makers who formulate expectations of numerical analysis and want to draw the right conclusions from the results
With this training we offer you an introduction to the challenges in simulation with large deformations, stability problems, plasticity, hyperelasticity and contact. You will gain a detailed understanding of what happens in the background during the solution and how you can positively influence the convergence behavior and performance of your analysis. In practice-oriented workshops you will have time to apply the knowledge immediately.
Do you have questions on the training or the eLearning?
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 seminar fees, the billing address, hotel recommendations, 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 on how to get to the venue. 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 help you change 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).
The following time difference to GMT during summer/winter time applies to the individual training providers:
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 seminar 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 seminar 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.
A prerequisite for using the learning contents of booked eLearning seminars is the possession of an access to the CADFEM learning platform. This access is valid for 12 months and can be extended annually. This allows you to decide how long you want to have access to your numerous videos, PDF documents and quiz questions.
Dr. Paul Lethbridge
The right training, hardware and additional software products are the keys to success when it comes to a quick introduction to simulation.