English

Once every semester

Achieving basic understanding of structural stability and apply it to various problems in structural engineering / structural mechanics

1. Introduction - generally about buckling of bars, lateral torsional buckling and buckling of plates
2. II and III-order theory
3. Energy Method
4. Stability of infinitely rigid struts on elastic foundation
5. Buckling: equilibrium method and energy method
6. Buckling: elastic beams with varying cross section, elastic beams on elastic foundation, etc.
7. Beam columns
8. Derivation of II-orders equations, flexural buckling, torsional buckling and lateral torsional buckling.
9. Buckling of frames
10. Buckling of arches
11. Bracing
12. Discussion

1. Understand and evaluate the stability phenomenon and understand the fundamental difference between the critical load and design load
2. Understand the different types of stability phenomena, flexural, torsional buckling and flexural-torsional buckling
3. Understand the difference between I, II and III-order analyses
4. Understand and use different methods to calculate the critical load
5. Understand the background to the buckling of frames and bows

1. Be able to calculate both critical load and design load
2. Be able to identify different types of stability phenomena, flexural, torsional buckling and flexural-torsional buckling
3. Be able to calculate the critical load for simple structures according to I, II and III order analysis
4. Be able to calculate the buckling load of frames and arches

1. Be aware of the critical load is a vital parameter to determine the load bearing capacity of a structure
2. Be able to apply both exact and approximate methods for estimating the critical load of various types of structures.

Lectures

Exercises

Project

Written report

Written assignments

Seminars given by participants

Failed, pass

Utdelat material.
Timoshenko, S.P. & Gere, J.M.: Theory of Elastic Stability, 2nd Edition. McGraw-Hill, 1961.
al, G.: Structural Stability of Steel. 2008.
Pettersson, O.: Knäckning.

Two types of examinations are possible:
1. Examination by solving a number of tasks - giving 7.5 points
2. Examination by solving a number of tasks and write a report on them - 10 points

VBK005F

 -03-02

FN3 /Per Tunestål