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Foreword; Acknowledgements; Contents; Acronyms and Symbols; Abstract; 1 Introduction; Abstract; 1.1 Some History About Regulations for Pressure Vessels; 1.2 Significance of Minimum Burst Ratio Versus Service Strength; 1.3 Load Cycle Fatigue Sensitivity; 1.4 Residual Strength; 1.5 Slow Burst Test (SBT); 1.6 Probabilistic Approach (PA); Literature; 2 Test Procedures for Hydraulic Sample Testing; Abstract; 2.1 General Aspects Regarding Reproducibility of Test Procedures; 2.1.1 Reproducibility of Cycle Tests; 2.1.2 Reproducibility of Burs Tests
2.2 Influence of Time on Quasi-Static Test Procedures to Rupture2.2.1 Burst Testing of Composite Cylinders; 2.2.2 Sustained Load Testing of Composite Cylinders; 2.3 The Slow Burst Test (SBT); 2.3.1 Development of the Slow Burst Test; 2.3.2 Experience with the Slow Burst Test; 2.4 Detailed Recommendations for a SBT-Procedure; 2.4.1 Sampling of Test Specimens (Composite Cylinders); 2.4.2 Test Parameters; 2.4.3 Test Procedures; 2.4.4 SBT-Procedure with Stepwise Pressure Increase; Literature; 3 Statistical Assessment of Sample Test Results; Abstract
3.1 Introduction of the "BAM-Performance Chart" (SPC)3.1.1 The SPC for Burst Pressure; 3.1.2 The SPC for Time to Rupture; 3.1.3 The SPC for Load Cycles to Leakage; 3.2 Statistical Assessment of Sample Test Results; 3.2.1 Test Result from Rapid and Slow Burst Testing; 3.2.2 Test Results from Load Cycle Testing; 3.3 Determination of the Survival Rate of a Sample (SR); 3.3.1 SR Resulting from Burst and Slow Burst Sample Testing; 3.3.2 SR Resulting from Load Cycle Testing; 3.4 Transfer of Sample Results on a Population of Composite Cylinders; 3.4.1 Confidence Level and Confidence Interval
3.4.2 Sample Evaluation in the SPC for the Burst Strength (Linear Scale)3.4.3 Sample Evaluation in the SPC for the Load Cycle Strength (Logarithmic Scale); 3.5 Aspects of Practical Use; 3.5.1 Influence of Gas Properties; 3.5.2 Aspects of the Accidental Loads; 3.5.2.1 Accident Load: Resistance of On-board Storage Cylinders Against Crash Loading; 3.5.2.2 Accident Load: Resistance Against Fire Engulfment; Literature; 4 Strength Degradation and Lifetime Assessment; Abstract; 4.1 Aspects of Load Cycle Fatigue Sensitivity; 4.1.1 Consideration for the Primary Failure of Composite Cylinders
4.1.2 Load Cycle Sensitivity as Criterion for Classification of Design Types4.1.3 Assessment of the Leak-Before-Break Behaviour; 4.1.4 Strength Properties at "Beginning of Life"; 4.2 Experience with Artificial Ageing; 4.2.1 Residual Strength Testing Subsequent to Artificial Ageing (EoL); 4.2.2 Artificial Ageing Due to Hydraulic Load Cycles; 4.2.3 Artificial Ageing Due to Sustained Load at Elevated Temperature; 4.2.4 Artificial Ageing Due to Load Cycling with Gas; 4.3 Experience with In-Service Degradation; 4.3.1 Residual Strength in Terms of Hydraulic Load Cycles
4.3.2 Residual Strength in Terms of Burst Pressure
2.2 Influence of Time on Quasi-Static Test Procedures to Rupture2.2.1 Burst Testing of Composite Cylinders; 2.2.2 Sustained Load Testing of Composite Cylinders; 2.3 The Slow Burst Test (SBT); 2.3.1 Development of the Slow Burst Test; 2.3.2 Experience with the Slow Burst Test; 2.4 Detailed Recommendations for a SBT-Procedure; 2.4.1 Sampling of Test Specimens (Composite Cylinders); 2.4.2 Test Parameters; 2.4.3 Test Procedures; 2.4.4 SBT-Procedure with Stepwise Pressure Increase; Literature; 3 Statistical Assessment of Sample Test Results; Abstract
3.1 Introduction of the "BAM-Performance Chart" (SPC)3.1.1 The SPC for Burst Pressure; 3.1.2 The SPC for Time to Rupture; 3.1.3 The SPC for Load Cycles to Leakage; 3.2 Statistical Assessment of Sample Test Results; 3.2.1 Test Result from Rapid and Slow Burst Testing; 3.2.2 Test Results from Load Cycle Testing; 3.3 Determination of the Survival Rate of a Sample (SR); 3.3.1 SR Resulting from Burst and Slow Burst Sample Testing; 3.3.2 SR Resulting from Load Cycle Testing; 3.4 Transfer of Sample Results on a Population of Composite Cylinders; 3.4.1 Confidence Level and Confidence Interval
3.4.2 Sample Evaluation in the SPC for the Burst Strength (Linear Scale)3.4.3 Sample Evaluation in the SPC for the Load Cycle Strength (Logarithmic Scale); 3.5 Aspects of Practical Use; 3.5.1 Influence of Gas Properties; 3.5.2 Aspects of the Accidental Loads; 3.5.2.1 Accident Load: Resistance of On-board Storage Cylinders Against Crash Loading; 3.5.2.2 Accident Load: Resistance Against Fire Engulfment; Literature; 4 Strength Degradation and Lifetime Assessment; Abstract; 4.1 Aspects of Load Cycle Fatigue Sensitivity; 4.1.1 Consideration for the Primary Failure of Composite Cylinders
4.1.2 Load Cycle Sensitivity as Criterion for Classification of Design Types4.1.3 Assessment of the Leak-Before-Break Behaviour; 4.1.4 Strength Properties at "Beginning of Life"; 4.2 Experience with Artificial Ageing; 4.2.1 Residual Strength Testing Subsequent to Artificial Ageing (EoL); 4.2.2 Artificial Ageing Due to Hydraulic Load Cycles; 4.2.3 Artificial Ageing Due to Sustained Load at Elevated Temperature; 4.2.4 Artificial Ageing Due to Load Cycling with Gas; 4.3 Experience with In-Service Degradation; 4.3.1 Residual Strength in Terms of Hydraulic Load Cycles
4.3.2 Residual Strength in Terms of Burst Pressure