Direct finite element route for design-by-analysis of pressure components
- In the new European standard for unfired pressure vessels, EN 13445-3, there are two approaches for carrying out a Design-by-Analysis that cover both the stress categorization method (Annex C) and the direct route method (Annex B) for a check against global plastic deformation and against progressive plastic deformation. This paper presents the direct route in the language of limit and shakedown analysis. This approach leads to an optimization problem. Its solution with Finite Element Analysis is demonstrated for mechanical and thermal actions. One observation from the examples is that the so-called 3f (3Sm) criterion fails to be a reliable check against progressive plastic deformation. Precise conditions are given, which greatly restrict the applicability of the 3f criterion.
| Author: | Manfred StaatORCiD |
|---|---|
| DOI: | https://doi.org/10.21269/73 |
| Document Type: | Article |
| Language: | English |
| Year of Completion: | 2005 |
| Publishing Institution: | Fachhochschule Aachen |
| Tag: | Analytischer Zulaessigkeitsnachweis; Einspiel-Analyse; Einspiel-Kriterium; alternierend Verformbarkeit; fortschreitende plastische Deformation Alternating plasticity; Design-by-analysis; Progressive plastic deformation; Shakedown analysis; Shakedown criterion |
| GND Keyword: | Einspielen <Werkstoff>; Plastizität; Deformation |
| Source: | International Journal of Pressure Vessels and Piping 82 (2005) |
| Institutes: | FH Aachen / Fachbereich Medizintechnik und Technomathematik |
| FH Aachen / IfB - Institut für Bioengineering | |
| Dewey Decimal Classification: | 6 Technik, Medizin, angewandte Wissenschaften / 60 Technik / 600 Technik, Technologie |
