In the name of of Allah the Merciful

In Situ Characterization Methodology for the Design and Analysis of Composite Pressure Vessels

Martin Nebe, 3658357967, 9783658357962, 9783-658357962

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English | 2022 | PDF

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With his work, Martin Nebe provides principal insights into the  mechanical response of composite pressure vessels subjected to internal  pressure. By establishing and validating an in situ characterization  methodology, the vessel’s geometry, its deformation behavior and the  damage evolution process under internal pressure loading become  accessible. This not only permits to trace back certain phenomena  related to the manufacturing of these components but also allows to  verify analytical and numerical modeling strategies. The exercised  correlation of predicted and experimental results delivers detailed  insights into design considerations to composite pressure vessels such  as the definition of stacking sequence. The transfer of knowledge to a  fullscale vessel geometry, which is representative for the use in fuel  cell electric vehicles underlines the industrial application of this  work. By combining numerical modeling, filament winding and experimental  characterization, this work provides a sound foundation for future  developments in the area of composite pressure vessels used for hydrogen  storage.

Table of contents
List of Figures
List of Tables
1 Motivation and scope
2 Literature review
2.1 Background to composite pressure vessels
2.2 Analysis of composite pressure vessels
2.3 Experimental characterization of composite pressure vessels
2.4 Correlation of numerical and experimental analysis
2.5 Summary and research questions
3 Material and methods
3.1 Robot-assisted towpreg winding
3.2 Experimental characterization
3.3 Determination of material properties
3.4 Structural analysis
4 In situ characterization methodology
4.1 Evaluation of thickness build-up
4.2 Characterization of deformation behavior
4.3 Failure monitoring and localization
4.4 Concluding remarks
5 FE modeling and correlation
5.1 Model definition
5.2 Correlation of mechanical response
5.3 Concluding remarks
6 Influence of stacking sequence
6.1 Experimental design
6.2 Fiber volume fraction and porosity
6.3 Deformation behavior
6.4 Damage progression and final failure
6.5 Concluding remarks
7 Application on fullscale geometry
7.1 Design considerations
7.2 Structural analysis
7.3 Comparison to the state-of-the-art
7.4 Concluding remarks
8 Design considerations to composite pressure vessels
9 Summary and outlook
List of publications
Supervised student theses
Curriculum vitae
Published volumes