Registry
Module Specifications
Archived Version 2021 - 2022
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Description This module introduces engineering students to the finite element method. It illustrates how finite element methods may be used as part of the engineering design cycle. The focus of this module is on relatively simple linear finite element analyses for stress analysis problems. A theoretical understanding of simple 1D and beam finite element analyses is covered for infinitesimal strain. Hands on experience is covered via practical case studies and using a commercially available FE software. | |||||||||||||||||||||||||||||||||||||||||
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Learning Outcomes 1. Explain the mathematical methods used to formulate a finite element analysis. 2. Be able to formulate and solve a finite element analysis for a simple 1-D stress analysis problem. 3. Be able to formulate and solve a finite element analysis for a beam analysis problem. 4. Use a commercially available FE software to solve linear (infinitesimal strain) stress analysis problems. 5. Critically assess the results and accuracy from a FE analysis. 6. Explain how FEA fits into the engineering design process and be able to apply it appropriately. | |||||||||||||||||||||||||||||||||||||||||
All module information is indicative and subject to change. For further information,students are advised to refer to the University's Marks and Standards and Programme Specific Regulations at: http://www.dcu.ie/registry/examinations/index.shtml |
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Indicative Content and
Learning Activities IntroductionWhat is the finite element method, Why is it used, how does FEA fit into the design processReview of Stress AnalysisUnits and dimensional analysis, material properties, stress and strain, yielding and plastic deformationOverview of FE theoryChanging a physical model to a mathematical model, direct methods, minimum potential energy methods.Practical FE proceduresElement selection, material model selection, geometry considerations, loading considerations, use of appropriate boundary conditionsElements & Shape Functions1-D linear truss elements, 1-D quadratic truss elements, 2-D Truss Elements, 1-D and 2-D beam elements.Material ModelsLinear elastic modelsModelling & MeshingTruss & beam assumptions, planar assumptions, thin shell assumptions, simplification using symmetry, defeaturing, model cleanup after CAD translation, meshing considerations, mesh convergenceBoundary Conditions & LoadsOverview of static loads and appropriate boundary conditions, implications of assuming static loads.Solution of the ProblemPractical and theoretical overview of linear static solutionsPost Processing & ValidationOverview of different methods for presentation/analysis of results, model verification and validation.Case StudiesAll of the above are illustrated with the assistance of case studies carried out during laboratory sessions and via project work using ANSYS FE software. | |||||||||||||||||||||||||||||||||||||||||
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Indicative Reading List
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Other Resources 639, Website, University of Alberta, 0, Ansys on-line Tutorials, http://www.mece.ualberta.ca/Tutorials/ansys/, | |||||||||||||||||||||||||||||||||||||||||
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