S. Adden, P. Horst

This paper presents results of numerical computations of the crack-path in stiffened structures by means of the finite element method (ABAQUS is used as FE Solver) and material forces. After a first short introduction of material forces the model, which was examined, is explained in detail. The crack-path predictions for several different load-cases are shown and compared with the crack-path predictions via the maximum tangential stress criterion (mts) and the Kll=0 (kII0) criterion, which are both independently computed by the fea-solver. The results show that the crack-path, which is computed by material forces, correlates with the results from the two other methods. The possible benefits of using the material force method are discussed.

23rd ICAF Symposium of the international Committee on Aeronautical Fatique, 2005, Hamburg

Conference Poster

englisch

A5, 9 Seiten

DGLR-Bericht, 2005, 2005-03, 23rd ICAF Symposium of the international Committee on Aeronautical Fatique - Proceedings; S.683-691; 2005; Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn

NA

cracks, materials

Bestellbar

2005