Reinforcement

Reinforcement

The choice of reinforcement is important for the properties of the profile, including mechanical properties such as strength and stiffness.

The orientation of the reinforcement is also of great importance to the properties of finished products as regards load-carrying capacity.

Profiles manufactured by Fiberline Composites are a combination of various types of roving and different types of complex weaves and mats.

Structural profiles are for example often subjected to loads that are transversal to the length of the profile (i.e. transversal to the direction of pultrusion), and these profiles must often be capable of resisting pull-out loads from bolts etc.

Not only unidirectional roving is therefore used, but also roving in which some of the fibres are oriented transversely. In addition, mats and weaves with different fibre orientations are used. Mats and weaves with fibre orientations of between 45° and 90° contribute primarily to improving bolt pull-out strength and mechanical properties in the transverse direction.

The combination of roving and mats can be tailored to the requirements made to the individual profile based on the needs of the customer.

Types of roving
Reinforcement Fiberline Composite Reinforcement Fiberline Composites Reinforcement Fiberline Composites 
 Unidirectional  Spun Mock  
 
Types of mat
Reinforcement Fiberline Composite Reinforcement Fiberline Composites Reinforcement Fiberline Composites 

Continuous mat
random fibre orientation

Weave
0º/90º

 

Complex mat
0º/90º weave + random fibre orientation
 

Reinforcement Fiberline Composites Reinforcement Fiberline Composites Reinforcement Fiberline Composites

Bidirectional complex mat 0º/±45º/90º weave + random fibre orientation

 

Multiax mat
0º/±45º              

Specially developed mat based on specific requirement

     

If a profile is to be located in a corrosive environment an “surfacing veil” is used. This can be thin fibreglass matting, thin thermoplastic polyester matting or acrylic matting which is placed on the entire profile surface to protect the glass fibres against corrosion and subsequent deterioration of the mechanical properties of the profile.

The pultrusion process necessitates that a certain number of the fibres be oriented in the direction of pultrusion, but the reinforcement can otherwise be structured in innumerable ways depending upon the load.

 

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