Course Details

Course Information Package

Course Unit TitleINTRODUCTION TO FINITE ELEMENTS
Course Unit CodeCES460
Course Unit Details
Number of ECTS credits allocated5
Learning Outcomes of the course unitBy the end of the course, the students should be able to:
  1. Present the fundamental concepts of the finite element method for the analysis of structures.
  2. Assess the structural behaviour of a real structure and construct structural models to simulate the response.
  3. Develop the element stiffness for 1-D, 2-D and 3-D elements.
  4. Solve basic and complex problems for different civil engineering applications.
  5. Assess the mesh correctness and explain and validate the results
Mode of DeliveryFace-to-face
PrerequisitesCES351Co-requisitesNONE
Recommended optional program componentsNONE
Course Contents

General: Finite element concepts; modeling; discretization; element selection; testing; model validation. Matrix operations, numeric integration (Gauss-quadrature), and MATLAB.

Line elements (1-D): Axial line element (bar); C0 shape functions (interpolation functions); element matrix formulation; integration; loads; assembly of global matrices; solution; force recovery; coordinate transformations. Element matrix formulation techniques: virtual work; method of weighted residuals; variational methods; strong form; weak form; essential and natural boundary conditions; Galerkin method; Rayleigh-Ritz method. Flexural line element (beam); C1 shape functions (interpolation functions); element matrix formulation; integration; loads; assembly of global matrices; solution; force recovery; coordinate transformations

Surface (area) elements (2-D): Shape functions; strain-displacement relationships; constitutive relationships (stress-strain relationships, material models). Plane-stress, plane-strain, and axi-symmetric analysis using rectangular elements; locking; full vs. reduced integration; spurious modes; incompatible modes; stress recovery; interpretation of analysis results (principal stress, effective stress). Isoparametric surface element formulations; shape functions; consistent loads; effects of element distortion; stress recovery, extrapolation, and smoothing. Plate bending elements; Kirchoff vs. Mindlin formulations; constitutive relationships; interpretation of analysis results (principal moments and shears). Flat shell elements; superposition of membrane and plate bending; drilling DOF. Axisymmetric elements

Volume (solid) elements (3-D): Isoparametric volume (solid brick) elements; shape functions; constitutive relationships
Recommended and/or required reading:
Textbooks
  • “Concepts and Applications of Finite Element Analysis”, Robert D. Cook, David S. Malkus, Michael E. Plesha and Robert J. Witt, John Wiley & Sons; 4th Edition.
References
  • “The Finite Element Method”, Hughes, Dover Publications Inc.
  • “The Finite Element Method: Its Basis and Fundamentals”, O. C. Zienkiewicz, R. L. Taylor, J.Z. Zhu, Butterworth-Heinemann; 6 Edition.
  • “Programming the Finite Element Method”, Ian M. Smith and Vaughan Griffiths, Wiley-Blackwell; 4th Edition.
Planned learning activities and teaching methodsThe course will be presented through theoretical lectures in class. The lectures will present to the student the course content and allow for questions. Part of the material will be presented using visual aids. The aim is to familiarize the student with the different and faster pace of presentation and also allow the instructor to present related material (photographs etc.) that would otherwise be very difficult to do. The learning process will be enhanced with the requirement from the student to solve exercises. These include self evaluation exercises which will be solved in class. These exercises will not be graded. Exercises will also be given as homework (final project) which will be part of their assessment. Besides from the notes taken by students in class, all of the course material will be made available through the class website and also through the eLearning platform. Finally the instructor will be available to students during office hours or by appointment in order to provide any necessary tutoring.
Assessment methods and criteria
Assignments10%
Tests40%
Final Exam50%
Language of instructionEnglish
Work placement(s)NO

 Печать  E-mail