Coursecode: wb1405A

Coursename: Stability of thinwalled structures 1

DUT creditpoints: 3

ECTS creditpoints: 4,5

Subfaculty of Mechanical Engineering and Marine Technology

Lecturer(s): Keulen, prof.dr.ir. A.

Tel.:  015-27 84185 / 86515

Catalog data:

Course year:

4

Period:

0/0/4/2

Hours per week:

4/2

Other hours:

Assessment:

see remarks

Assessm.period:

(see academic calendar)

Prerequisites: Basic courses on mechanics and finite elements.

Follow up:  AE4-534

Detailed description of topics:

The course is subdivided into three parts. The first part deals with several analytical examples of linearized buckling analysis. Typical examples will be linearized buckling analysis of columns and plates. In addition, analytical approximation techniques will be discussed. The second part is reserved for numerical techniques; in particular linearized buckling analysis using the finite element method.  For self-containment a short introduction to geometrically nonlinear finite element analysis is included. The discussion on numerical linearized buckling analysis is completed with design sensitivity analysis for buckling loads. In the third part the focus is on numerical buckling analysis in a more general setting.  This implies that the assumption of a linear pre-buckling solution will be dropped. Moreover, post-buckling analysis is discussed. Both analytical and numerical techniques for (initial) post-buckling analysis are included.

Course material:

Every student must prepare his own lecture notes. In addition, references to literature and textbooks will be given during the lectures.

References from literature:

Normal lectures will be provided. For further reading references to textbooks and literature will be given. Exercises will be distributed that lead to both analytical and numerical training. Several of these exercises require basic hands-on experience with finite element modeling.

Remarks assesment, entry requirements, etc.):

Assignments will be provided during the lectures. The answers must be handed in before the oral exam.

The final grade is based on the quality and completeness of the answers on take-home excersises and the quality of an oral exam.

Learning goals:

The course is designed to give the students a thorough foundation for solving the variety of structural stability problems they may encounter in practice.  Students become acquainted with both analytical and numerical techniques. The course is intended to place stability problems in a broad context. Therefore nonlinear buckling, post-buckling and design sensitivity analysis are also included.

Computer use:

Laboratory project(s):

Design content:

Percentage of design: