Composite materials (CM) are been used more and more every day in several applications, especially in aeronautic structures where complex shaped parts are highly demanded. The arrangement or orientation of the fibers relative to one another, the fiber concentration, and the distribution all have a significant influence on the strength and other properties of fiber reinforced composites. Thus, one needs to develop testing methods to assess the material's fiber content. Non-Destructive Evaluation (NDE) methods must be employed in some cases to assess the material's fiber content in order to presser the samples integrity. In this paper, InfraRed Thermography (IRT), is used in order to assess fiber orientation on Randomly- Oriented Unidirectional Strand (ROS) samples. More specifically, Pulsed Thermal Ellipsometry (PTE) using a static laser spot heating source is employed in order to create a fiber orientation map of the fiber distribution on the surface of ROS panels.

FIBER ORIENTATION DETECTION ON FIBER REINFORCED POLYMERS MOULDED WITH RANDOMLY-ORIENTED STRANDS

S. Sfarra;
2017-01-01

Abstract

Composite materials (CM) are been used more and more every day in several applications, especially in aeronautic structures where complex shaped parts are highly demanded. The arrangement or orientation of the fibers relative to one another, the fiber concentration, and the distribution all have a significant influence on the strength and other properties of fiber reinforced composites. Thus, one needs to develop testing methods to assess the material's fiber content. Non-Destructive Evaluation (NDE) methods must be employed in some cases to assess the material's fiber content in order to presser the samples integrity. In this paper, InfraRed Thermography (IRT), is used in order to assess fiber orientation on Randomly- Oriented Unidirectional Strand (ROS) samples. More specifically, Pulsed Thermal Ellipsometry (PTE) using a static laser spot heating source is employed in order to create a fiber orientation map of the fiber distribution on the surface of ROS panels.
978-2-9809199-5-4
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11697/121665
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