Filtern
Erscheinungsjahr
- 2019 (3) (entfernen)
Dokumenttyp
- Beitrag zu einem Tagungsband (2)
- Vortrag (1)
Sprache
- Englisch (3) (entfernen)
Referierte Publikation
- nein (3)
Schlagworte
- Fibre break (3)
- Multiscale model (2)
- Composite Pressure Vessel (1)
- Composite pressure vessels (1)
- Multiscale modelling (1)
- NOL Ring test (1)
- Reduced Volume Method (1)
- Time dependent loading (1)
- Type IV pressure vessel (1)
- Weibull parameter (1)
Organisationseinheit der BAM
Eingeladener Vortrag
- nein (1)
The reduced volume method has found a particular zone to be used for evaluating the strength of unidirectional composite materials. To validate the method, modelling an experimental test where it has the same basic assumption of the model had been carried out. The result was favourable as the model can predict the average value from the experiment and also the time dependent effect.
It is pertinent to have a correct description of fibre strength described by the twp parameter Weibull distribution when evaluating a type Iv pressure vessel using the fibre break multiscale model developed at Mines ParisTech. Earlier studies have shown a positive comparison result when T600S fibre strength were used. This study has discovered what would be the effect on the predicted strength when T700S strength is used.
The Reduced Volume Method (RVM) has been used to evaluate the multiscale fibre break model developed at Mines ParisTech. It allows the model to be assigned only at certain part of the structures without necessarily compromising the final prediction. An attempt to model a simple unidirectional composite structure has also been carried out and gave a satisfying result. This paper deals with the application of the RVM to real scale type IV composite cylinders, where its stacking sequence was evaluated through micro-CT scans conducted with the collaboration of the University of Southampton. Two modelling geometries were evaluated and compared with the corresponding experimental results.