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- Accidental loads (1)
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Eingeladener Vortrag
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This presentation explains how an PA-based approval concept could work and would substitute the most of deterministic requirements based on a risk based quantification of accepted failure rates.
The concept of a probabilistic approval approach is based on 5 separate types of requirements:
1. Testing and evaluation of properties at Beginning of Life (BoL)
2. Artificial aging with residual strength assessment
3. Testing against dedicated accidental loads
4. Surveillance of production quality
5. Surveillance of degradation/ check of estimated end of life (EoL)
Each of these aspects is visualised by photos and diagrams.
This presentation provides an impression of the boundary condition of the work on composite cylinders on a competent authority. It shows the various kinds of usage, the different tasks and duties around this kind of storage units and the wide spread of technical competence necessary for the substantial research when addressing the legislation. Based on this it shows how we react on changes in the regulations by research and how this influences the regulations, again. As an example, our probabilistic approach is mentioned and drafted for getting mentioned several times during the ongoing set of presentations.
Der Vortrag zeigt die aktuelle Rechtslage bzgl. Bergungsdruckgefäße und die hierzu vom BMVI und der BAM veröffentlichten Dokumente. Darüber hinaus werden die Informationen dargestellt, die der BAM derzeit über Betrieb und Bauweise von Bergebehältern vorliegen. Der Vortrag informiert über mögliche Alternativen, die ggf. angestrebte Weiterverwendung alter Bergebehälter unter dem Vorbehalt der positiven Prüfung zu gestatten. Der Vortrag schließt mit einer Reihe von Fragen an die anwesenden Betreiber, deren Beantwortung der BAM hilt, das weitere Vorgehen zur Erfüllung der behördlichen Aufgabe effizient und kundenoritiert zu gestalten.
Conventional approval requirements exclusively ask for minimum strength values, which have to be met. The probabilistic approach estimates how likely none of the comparatively manufactured units fails during operation.
Both questions are juxtaposed and compared here with respect to the load cycle tests. The influence of the sample sizes is discussed additionally.