A note on the computation of the imperfection sensitivity of the collapse load of elastic structures

On the solution of mode jumping phenomena in thin walled shell structures

Mode enrichment and the analysis of through cracks in thin walled shells under internal pressure

Computational mechanics at the faculty of Aerospace Engineering, Delft University of Technology

Some computational tools for the analysis of through cracks in stiffened fuselage shells

Nonlinear analysis of Ariane 5 engine frame

The numerical simulation of the collapse process of axially compressed cylindrical shells with measured imperfections

On formulations of path-following techniques for structural stability analysis

The buckling behavior of a central crack in a plate under tension

The B2000 linear buckling processor

In many practical problems of plate and shell buckling, the pre-buckling state is linear and can be obtained from the linearized equations of elasticity. The computation of the buckling load and mode in such cases correponds to a linear eigenvalue problem that can easily be formulated and implemented in a finite element code. This report...

The nonlinear analysis part of B2000: a first evaluation

In this report a description is given of the nonlinear package of B2000. The set-up of the continuation procedure which controls the nonlinear calculations is explained. At some points the existing continuation procedure was modified to enhance its performance. The nonlinear package contains a nonlinear rod element and a nonlinear thick shell...

Bordered equations in continuation methods: an improved solution technique

Continuation methods with adaptive path parameters, such as arc-length continuation, are based on bordered equations where the governing matrix is nonsymmetric with respect to one column and row. In the conventional way of solving these systems, the factored submatrix of the total system becomes singular at special solution points such as limit...

Development of an improved analysis capability of the stags computer code with respect to the collapse behaviour of shell structures

The STAGS computer code is designed for the analysis of the stability behaviour of shell structures. As such it presents an important contribution to the computerized analysis of structural problems. Despite its great potential, however, the code in its present form is subject to restrictions which limit the range of its possibilities...

A buckling analysis of a Z-stiffened compression panel, simply supported on equidistant ribs

The compression panel considered in this report tends to buckle in an Euler type mode between the ribs that support the panel. A combination of torsion and bending of the Z-stiffeners during buckling lowers the overall bending stiffnes of the panel and causes buckling to occur explosively. The present report deals with a numerical analysis of a...

Berekening van het interactie model van Van der Neut met behulp van de eindige-elementenmethode

The incremental solution of some basic problems in elastic stability