Effect of Hygrothermomechanical Aging on the Interlaminar Fracture Behavior of Woven Fabric Fiber/PEI Composite Materials

This article addresses the experimental characterization of the mechanical properties of three types of woven fabric composites taking into account the effects of hygrothermal and hygrothermomechanical aging. Characterization was carried out using the mode I, double cantilever beam (DCB) and the mod...

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Bibliographic Details
Published in:Journal of thermoplastic composite materials 2006-07, Vol.19 (4), p.385-398
Main Authors: Zenasni, R., Bachir, A. S., Viña, I., Arguelles, A., Viña, J.
Format: Article
Language:English
Subjects:
Cantilever beams
Carbon fibers
Composite materials
Crack propagation
Fabrics
Fracture mechanics
Glass fibers
Interlaminar
Polyetherimides
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Summary:This article addresses the experimental characterization of the mechanical properties of three types of woven fabric composites taking into account the effects of hygrothermal and hygrothermomechanical aging. Characterization was carried out using the mode I, double cantilever beam (DCB) and the mode II, end notched flexural (ENF) interlaminar fracture tests in order to determine the loss in crack propagation resistance. The materials used were two types of woven (2/2 Twill, 8-Harness Satin) glass fiber, and 8-Harness Satin carbon fiber. The matrix was polyetherimide (PEI). The critical values of the energy release rate in mode I and mode II were calculated using the corrected beam theory. The material reinforced with 8-Harness Satin glass fiber presented the best behavior in mode I and mode II. The decrease in fracture strength is more important in the material reinforced with carbon fiber.
ISSN:0892-7057
1530-7980
DOI:10.1177/0892705706059743