Are you struggling with convergence issues before obtaining results in your more complex models?
Are you looking for a methodological approach to speed up the debugging of advanced models and increase the efficiency of your discussions with your favorite support hotline?
Are you new to FEA and want to learn how to speed up the debugging of your models that haven’t worked on your first try?
This 3-session, live online course explains what you need to know to debug linear and nonlinear implicit finite element models efficiently and systematically. By attending, you will learn to interpret the most frequent issues you can encounter when developing finite element models for static analysis and understand the error messages.
You will explore the range of debugging tools offered by finite element software and learn how to best use them to find a solution. Many error messages are self-explanatory, but the most concerning issues with your model can lead to error messages that are much less clear and difficult to correct. The relation between the message and its cause is not always obvious and requires significant effort to be addressed.
This course will teach you how to manage these situations. We will explore the different causes of numerical difficulties, propose a methodology to speed up the debugging process, and finally reach solver convergence to obtain the expected results from your models.
By the end of this course, you will also be able to efficiently prepare a discussion with your favorite software hotline to speed up the problem-solving process and get results from your models.
The key takeaways from this class are:
Travel and training budgets are always tight! The e-Learning course has been developed to help you meet your training needs.
If your company has a group of engineers or specific training requirements across any subjects, please contact us to discuss options.
Introduction to model debugging
The debugging toolkit
Debugging Linear static finite element analysis (Null and negative pivots Singular Jacobian matrix, Hourglass effect, …)
Debugging nonlinear static FE models part 1
Debugging nonlinear static FE models part 2
Sanity checking
Working with your simulation tool hotline partners
FEAkn1 | List the various steps in the analysis/simulation process. |
FEAkn15 | List 2 common solvers for large sets of simultaneous equations. |
FEAkn16 | List the various forms of element distortion. |
FEAco1 | Describe the sources of error inherent in finite element analysis, in general terms. |
FEAco2 | Discuss checks that may be used post-solution to check for the presence of inaccuracy. |
FEAco3 | Explain the term solution residual. |
FEAco4 | Explain the meaning of convergence, including h and p types. |
FEAco6 | Discuss the need for a consistent set of units in any analysis and illustrate possible pitfalls. |
FEAco9 | Explain the meaning of the term ill-conditioned when used in the context of a set of solution equations and illustrate physical situations where this might reflect reality. |
FEAco10 | Describe why incompressible or nearly-incompressible elastic media can cause difficulties with analysis. |
FEAco12 | Outline a common method employed to solve the large sets of sparse symmetric common in FEA. |
FEAco14 | Discuss the nature of the structural stiffness matrix. |
FEAco17 | Explain the process of Gaussian Quadrature and the terms Reduced Integration, Shear Locking and Mechanisms. |
FEAco26 | Discuss the significance of computer memory to solution elapse time for large models. |
FEAco27 | Explain how unwanted cracks can be produced in 2D and 3D solid meshes and describe which plot type is useful in detecting these. |
FEAco28 | Explain why element distortion generally results in poorer results. |
FEAco29 | Discuss the term Flying Structure or Insufficiently Constrained Structure. |
FEAco35 | Discuss the terms Validation and Verification and highlight their importance. |
FEAco39 | Discuss the Geometric Stiffness Matrix and highlight situations where it becomes important. |
FEAap1 2 | Employ a range of post-solution checks to determine the integrity of FEA results. |
FEAan1 | Analyse the results from small displacement, linear static analyses and determine whether they satisfy inherent assumptions. |
FEAev5 | Manage verification and validation procedures in support of FEA. |
Event Type | eLearning |
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Member Price | £256.57 | $325.00 | €307.71 |
Non-member Price | £387.62 | $491.00 | €464.88 |
Tutor: | Patrick Morelle |
Start Date | End Date | Location | |
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Session Times | | Online | |
*it is your individual responsibility to check whether these e-learning courses satisfy the criteria set-out by your state engineering board. NAFEMS does not guarantee that your individual board will accept these courses for PDH credit, but we believe that the courses comply with regulations in most us states (except Florida, North Carolina, Louisiana, and New York, where providors are required to be pre-approved)
Just as with a live face-to-face training course, each registration only covers one person. If you plan to register more than one person, please send an email to e-learning @ nafems.org in advance for group discounts. For NAFEMS cancellation and transfer policy, click here.
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