2. Physical analysis of composite structure
Characterization of the physical structure of the composite material being manufactured, based on a determination of the reinforcement, filler and porosity ratios, makes it possible to monitor the consistency of a manufacturing process and, in addition, to measure the parameters required for calculating multi-layer materials.
2.1 Fiber and filler content, and reinforcement structure
In the case of glass fiber composites, a calcination test (loss-on-ignition test) at 625 ×C with sample weighing before and after oven passage (NF T 57-102 and ISO 1172) allows :
measure the mass ratio of non-volatile fillers at the test temperature, i.e. the mass ratio of glass
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Physical analysis of composite structure
Fiber/matrix interface analysis
Bibliography
References
Test equipment suppliers
Non-exhaustive list
Ceast Spa http://www.ceast.com
Deltalab http://www.deltalab.fr
Erichsen http://www.erichsen.de
...
Testing laboratories
CETIM Centre technique des industries mécaniques.
ENSAM École nationale supérieure des arts et métiers de Paris.
École nationale supérieure des techniques industrielles et des mines de Douai
LNE Laboratoire national d'essais.
Pôle de plasturgie de l'Est.
Professional organizations
AMAC Association pour les matériaux composites.
CPC Centre de promotion des composites.
Fédération de la plasturgie.
GPIC Groupement de la plasturgie industrielle et des composites.
GPRMC Groupement européen des plastiques renforcés et matériaux composites.
SFIP Société française des ingénieurs...
Standardization
- Glass-fibre reinforced plastics – Normal atmospheres for conditioning and testing. Classification number : T57-050 - NF T57-050 - Juin 1977
- Glass-fibre reinforced plastics – Definitions of visual defects. Classification number: T57-100 - NF T57-100 - Octobre 1973
- Textile glass-reinforced plastics – Prepregs, molding compounds and laminates – Determination of textile glass and mineral filler content. Calcination...
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