Filtern
Erscheinungsjahr
Dokumenttyp
- Vortrag (43)
- Beitrag zu einem Tagungsband (27)
- Zeitschriftenartikel (20)
- Posterpräsentation (8)
- Beitrag zu einem Sammelband (3)
- Monografie (1)
Sprache
- Englisch (102) (entfernen)
Schlagworte
- Degradation (12)
- Residual strength (10)
- Slow burst test (10)
- Regulations (9)
- Acceptance rate (8)
- Composite (8)
- Hydrogen (8)
- Sample testing (8)
- Composite cylinders (7)
- Probabilistic (7)
- End of life (6)
- Safety (6)
- Sample performance chart (6)
- Scatter (6)
- Survival rate (6)
- Composite cylinder (5)
- Fibre break (5)
- Safety assessment (5)
- Composite pressure vessel (4)
- Confidence level (4)
- Consequences (4)
- Cylinder (4)
- Distribution function (4)
- Failure rate (4)
- Monte-Carlo (4)
- Production scatter (4)
- Reliability (4)
- Basic population (3)
- Burst test (3)
- Catastrophe (3)
- Composite pressure vessels (3)
- Consequence (3)
- Cycle strength (3)
- GTR 13 (3)
- Gas explosion (3)
- Hydraulic cycle testing (3)
- Lucky punch area (3)
- Minimum burst ratio (3)
- Modal analysis (3)
- Multiscale model (3)
- Risk (3)
- Ageing (2)
- Burst ratio (2)
- CFRP (2)
- Competent authority (2)
- Composite structures (2)
- ECE R134 (2)
- Efficiency in transportation (2)
- Explosion (2)
- F-N-curve (2)
- F-N-diagram (2)
- Failure of gas vessels (2)
- Gas storage (2)
- H2Safety@BAM (2)
- Hydrogen vehicles (2)
- Life time determination (2)
- Load cycle test (2)
- Load cycles (2)
- Monte Carlo simulation (2)
- Pressure rate (2)
- Pressure vessel (2)
- Pressure vessels (2)
- Pressure wave (2)
- Pressure-volume product (2)
- Probabilistic approach (2)
- Propane cylinder (2)
- Sample size (2)
- Statistical assessment (2)
- StorHy (2)
- Transport of dangerous goods (2)
- Acceptance criteria (1)
- Acceptance of a standard (1)
- Acceptance of failure rates (1)
- Accidental loads (1)
- Acoustic emission analysis (1)
- Advisement (1)
- Anderson-Darlington-test (1)
- Approval (1)
- Artifical aging (1)
- Artificial ageing (1)
- Artificial aging (1)
- Assessment (1)
- Basic populaiton (1)
- Batch test (1)
- Batch testing (1)
- Battery vehicle (1)
- Beginning of life (1)
- Borderline population (1)
- Burst requirements (1)
- Burst strength (1)
- Car crash (1)
- Carbon fiber (1)
- Carbon fibre (1)
- Catastrophic consequence (1)
- Chance-risk analysis (1)
- Combined distribution (1)
- Competence of BAM (1)
- Complexity of PA (1)
- Component testing (1)
- Composite Pressure Vessel (1)
- Composite calinders (1)
- Composite material (1)
- Composite pressure cylinders (1)
- Composite reinforced tanks (1)
- Compressed gas (1)
- Compressed hydrogen storage (1)
- Computed tomography (CT) (1)
- Consequence limit (1)
- Cost optimisation (1)
- Crash loads (1)
- Creep effects (1)
- Cycle fatigue (1)
- Cycle fatigue sensitive (1)
- Cycle fatigue sensitivity (1)
- Cycle-fatigue sensitivity (1)
- Damage analysis (1)
- Degradation trace (1)
- Design and qualification standards (1)
- Design life (1)
- Design type testing (1)
- Destructive testing (1)
- Determination of periodic inspection (1)
- Deterministic (1)
- Distributed fiber optic sensing (1)
- Distributed fibre optic sensors (1)
- ECE R110 (1)
- End of Life (1)
- End of safe service life (1)
- Extrapolation of degradation (1)
- Failure rate-pressureVolume-curve (1)
- Failure root cause (1)
- Filament winding (1)
- Finite element method (1)
- Fire engulfment (1)
- Fire engulfment tests (1)
- Fragmentation (1)
- Frequency (1)
- GAUSSian net (1)
- GTR (1)
- GTR No 13 (1)
- Gas behaviour (1)
- Gaseous filling (1)
- High-pressure (1)
- HyComp (1)
- Hybrid composite pressure vessel (1)
- Hydraulic proof testing (1)
- Hydrogen Storage (1)
- Hydrogen Supply (1)
- Hydrogen assisted cracking (1)
- Hydrogen energy (1)
- Hydrogen storage (1)
- Hydrogen storage cylinders (1)
- ISO 11119 (1)
- Image analysis (1)
- Industrial needs (1)
- Infrared radiation (1)
- Initial testing (1)
- Inspection (1)
- Integral range (1)
- Isoasfalen (1)
- Knowledge gaps (1)
- Lebensdauervorhersage (1)
- Limit of acceptable consequence (1)
- Loss of safety (1)
- Lucky punch arey (1)
- Market Rump Up (1)
- Markthochlauf (1)
- Material properties and compatibility (1)
- Maximum acceptable consequence (1)
- Maximum service pressure (1)
- Mean burst pressure (1)
- Mean strength (1)
- Mean value (1)
- Micro-mechanics (1)
- Micromechanics (1)
- Minimum burst pressure (1)
- Modular concept (1)
- Monte-Carlo Simulation (1)
- Monte-Carlo experiment (1)
- Monte-Carlo simulation (1)
- Monte-Carlo-Analysis (1)
- Monte-Carlo-experiment (1)
- Monte-Carlo-simulation (1)
- Multiscale modelling (1)
- NDT (1)
- NOL Ring test (1)
- Net zero (1)
- Onboard storage (1)
- Operational loads (1)
- Optical backscatter reflectometry (1)
- Optical fibre (1)
- PN020 (1)
- PV-product (1)
- Periodic insepction (1)
- Periodic inspection (1)
- Polar method (1)
- Population density (1)
- Pressure Equipment (1)
- Pressure cycle life tests (1)
- Pressure equipment (1)
- Pressure increase rate (1)
- Pressure recepacles (1)
- Pressure-volume-product (1)
- Probabilis-tic (1)
- Probabilistic approval approach (1)
- Probabilistic assessment (1)
- Probabilitic approach (1)
- Probability of failure (1)
- Proof test (1)
- Randomness (1)
- Reduced Volume Method (1)
- Reduced volume method (1)
- Reliabillity (1)
- Representative volume element (1)
- Residual strenght (1)
- Residual stress (1)
- Residual stresses (1)
- Risikosteuerung (1)
- Risk control (1)
- Safe handling (1)
- Safety factors (1)
- Safety goal (1)
- Safety-distances (1)
- Salvage pressure receptacle (1)
- Saving effort (1)
- Scatter value (1)
- Sensors (1)
- Service life (1)
- Service life tests (1)
- Slow burst (1)
- Slow burst testing (1)
- Speed effect (1)
- Statisitcal evaluation (1)
- Statistics (1)
- Storage and transport (1)
- Strength degradation (1)
- Structural health monitoring (1)
- Structural health monitoring (SHM) (1)
- Survaillance of degradation (1)
- Sustained load (1)
- Swept wavelength interferometry (SWI) (1)
- TNT equivalent (1)
- TPED (1)
- TPRDs (1)
- Time dependent loading (1)
- Trace of degradation (1)
- Tube trailer (1)
- Type IV pressure vessel (1)
- UN composite cylinders (1)
- UN-service life check (1)
- Weibull Distribution (1)
- Weibull distribution parameters (1)
- Weibull parameter (1)
- chance-risk analysis (1)
- composite-cylinders (1)
- hydrogen transport (1)
- maximum acceptable consequence (1)
- over-moulded cylinders (1)
- pressure-volume product (1)
- probabilistic approach (1)
- probabilistic tools (1)
- risk limit (1)
- specific risk value (1)
- statistische Bewertung (1)
Organisationseinheit der BAM
- 3 Gefahrgutumschließungen; Energiespeicher (34)
- 3.0 Abteilungsleitung und andere (18)
- 3.5 Sicherheit von Gasspeichern (16)
- 5 Werkstofftechnik (3)
- 5.5 Materialmodellierung (3)
- 8 Zerstörungsfreie Prüfung (3)
- 8.6 Faseroptische Sensorik (2)
- 2 Prozess- und Anlagensicherheit (1)
- 2.1 Sicherheit von Energieträgern (1)
- 3.3 Sicherheit von Transportbehältern (1)
Eingeladener Vortrag
- nein (43)
Implementation and current situation of introducing the Directives 97/23/EC in the German legislaton
(2001)
The objective of this work is to find a method that describes the degree of damage from an impact experiment. This experiment was performed on Composite Pressure Vessels (CPV) in order to find the correlation of impact damage to the residual burst pressure. Computed Tomography (CT) approach was used to capture the before and after impact condition of the CPVs. The Wasserstein function was used to calculate how much the after impact image has differed from the original one. In the end, a good correlation was obtained to the residual burst pressure.
The test data for static burst strength and load cycle fatigue strength of pressure vessels can often be well described by Gaussian normal or Weibull distribution functions. There are various approaches which can be used to determine the parameters of the Weibull distribution function; however, the performance of these methods is uncertain. In this study, six methods are evaluated by using the criterion of OSL (observed significance level) from Anderson-Darling (AD) goodness of Fit (GoF), These are: a) the norm-log based method, b) least squares regression, c) weighted least squares regression, d) a linear approach based on good linear unbiased estimators, e) maximum likelihood estimation and f) method of moments estimation. In addition, various approaches of ranking function are considered. The results show that there are no outperforming methods which can be identified clearly, primarily due to the limitation of the small sample size of the test data used for Weibull analysis. This randomness resulting from the sampling is further investigated by using Monte Carlo simulations, concluding that the sample size of the experimental data is more crucial than the exact method used to derive Weibull parameters. Finally, a recommendation is made to consider the uncertainties of the limitations due to the small size for pressure vessel testing and also for general material testing.
The presentation reflects the questions that have been raised by member states and NGOs.
As background information details on the question how to choose a suitable salvage pressure receptacle (SPR) are provided. This leads to the need for deleting the volume limitation for SPRs and to the discussions in 2014 and 2016 on this issue.
As an adequate substitution for deleting the volume limit for SPRs it is proposed to limit the pressure receptacles to be stored in by a maximum pressure-volume-value of 1.5 Mio bar-litres.
After some explanations to standardisation projects currently also tackling this pV-limit, some risk-based safety criteria for a limitation are mentioned with the focus of the consequence level and the general avoidance of catastrophic worst case scenarios.
First the acceptance rates resulting from the analysis of different minimum burst ratios and standards are displayed and explained. Especially the problems resulting from a further reduction if the minimum burst ratio are shown.
For a better understanding of these results the process of analysing the acceptance rate is explained in detail. This contains the alleged contradiction between safety of samples due to its scatter while the rejected sample provides a higher mean strength.
Then the importance of batch testing is explained and leads to the recommendation to have a strong interaction between provided mean strength and requested maximum of production scatter.