Course - Nonlinear Finite Element Analysis - TKT4197
TKT4197 - Nonlinear Finite Element Analysis
Examination arrangement: School exam
Grade: Letter grades
|Evaluation||Weighting||Duration||Grade deviation||Examination aids|
|School exam||100/100||4 hours||D|
Classification of nonlinearities (geometrical, material and boundary conditions). Strain- and stress measures for large displacements/deformations. Mathematical models for elastic and elastoplastic materials. Geometrical stiffness and linearized buckling. Formulation of the nonlinear finite element method. Numerical integration of dynamically excitated systems. Implicit/explicit time integration. Incremental-iterativ solution methods for nonlinear static and dynamic problems. Modelling of nonlinear boundary conditions. Impact- and contact problems.
The course provides an introduction to the theoretical foundation for nonlinear finite element analysis, as well as skill and understanding of the practical use of computer programs for numerical simulation of nonlinear finite element analysis. Nonlinear finite element analysis has the following learning objectives: Knowledge: The candidate should have knowledge of: - Description of the nonlinear behavior - Classification of nonlinearities (geometric, material and boundary conditions) - Characterization of critical points in the load-displacement diagram - How to establish and use the total and incremental equilibrium equations - Incremental-iterative solution methods - General knowledge of automatic load incrementation and arclength methods - Material models for elastic and elastic-plastic materials - Numerical methods for the direct integration of dynamically excited systems - Modelling and solution methods for nonlinear boundary conditions (contact) - Stress and strain measures for the description of large strain - Basic assumptions of linearized buckling. Skills: The candidate can: - Conduct simple deformation and buckling analysis of nonlinear bar and beam systems by hand calculation methods - Derive incremental stiffness relation for the bar elements based on the expression of potential energy - Use a general finite element program to model and solve simple nonlinear static and dynamic problems in a qualified manner . General knowledge: The candidate can: - Nonlinear solution methods - Numerical methods for direct time integration - The finite element method for calculating the nonlinear response - The methodological basis for program-controlled non-linear calculations - Difference in carrying out linear and nonlinear calculations based on first and second order theory Linearized buckling - phenomenology and the mathematical description.
Learning methods and activities
Lectures and homework assignments (including analytical and computer problems). 2/3 of the homework assignments must be approved to take the final exam. The lectures and exercises are in English when students who do not speak Norwegian take the course. If the teaching is given in English the Examination papers will be given in English only. Students are free to choose Norwegian or English for written assessments.
- Analytical and computer exercises
Further on evaluation
If there is a re-sit examination, the examination form may be changed from written to oral.
Recommended previous knowledge
Knowledge equivalent to TKT4134 Mechanics 4, TKT4145 Finite Element Methods in Engineering Science or TKT4192 Finite Element Methods in Strenght Analysis, and TKT4201 Structural Dynamics.
R.D. Cook, D.S. Malkus, M.E. Plesha, R.J. Witt: Concepts and Application of Finite Element Analysis, 4th ed., Wiley, 2002. Forelesningsnotater.
Credits: 7.5 SP
Study level: Second degree level
Term no.: 1
Teaching semester: AUTUMN 2023
Language of instruction: English
- Structural Mechanics
Examination arrangement: School exam
- Term Status code Evaluation Weighting Examination aids Date Time Examination system Room *
- Autumn ORD School exam 100/100 D 2023-12-14 15:00 INSPERA
Room Building Number of candidates SL510 Sluppenvegen 14 40
- Summer UTS School exam 100/100 D INSPERA
Room Building Number of candidates
- * The location (room) for a written examination is published 3 days before examination date. If more than one room is listed, you will find your room at Studentweb.
For more information regarding registration for examination and examination procedures, see "Innsida - Exams"