Auteur : Ai-Min YAN

Promoteur : Professeur Ordinaire NGUYEN-DANG Hung

Title

Résumé

- Extend and improve classical kinematical limit and shakedown theory and numerical method. Numerical various aspects are investigated. Efficient numerical techniques are proposed. The presented formulation is implemented with various finite elements.

- Develop and improve an enhanced pipe elbow finite element, based on the previous work of Bath and other authors. The developed pipe elbow element allows us to modelle efficiently a complex pipe elbow structure under extensive loads with low computing cost and easy data preparation.

- Explore direct limit analysis of cracked structure with effective numerical technique.

- Develop and improve a finite-element based calculating software ELSA: Elastic-plastic, Limit & Shakedown Analysis for pipe and general structures. With this strong tool, large amounts of numerical applications are presented in the thesis showing the efficiency of the developed method.

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