Preprint Article Version 1 This version is not peer-reviewed

Analysis of Failure Criteria in Laminas Reinforced with Unidirectional Curauá Fiber Fabric

Version 1 : Received: 23 May 2018 / Approved: 24 May 2018 / Online: 24 May 2018 (10:23:36 CEST)

How to cite: Cöuras Ford, E.T.L.; Freire Junior, R.C.S.; Ferreira, L.B.M. Analysis of Failure Criteria in Laminas Reinforced with Unidirectional Curauá Fiber Fabric. Preprints 2018, 2018050348 (doi: 10.20944/preprints201805.0348.v1). Cöuras Ford, E.T.L.; Freire Junior, R.C.S.; Ferreira, L.B.M. Analysis of Failure Criteria in Laminas Reinforced with Unidirectional Curauá Fiber Fabric. Preprints 2018, 2018050348 (doi: 10.20944/preprints201805.0348.v1).

Abstract

Natural fibers are being increasingly used in different areas of engineering, including as composite reinforcement. Among these fibers, carauá stands out for its good mechanical properties and adherence to resin. Nevertheless, little is known about the behavior of this material in the manufacture of a composite or whether classic failure theory can be used in this case. In this context, the present study assesses the mechanical properties of two laminas made of unidirectional curauá fiber with volumetric fiber percentages of 30 % and 22 %, and compares the results with the values obtained for four failure criteria reported in the literature, using analysis of variance (ANOVA). To that end, tensile tests were conducted in the direction of the fiber and at other loading angles, in addition to iosipescu shear tests. The results show that the maximum stress criterion does not represent the failure behavior of these materials and that the best was the Hashin criterion.

Subject Areas

failure criteria; curauá fibers; reinforcement direction; ANOVA.

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our diversity statement.

Leave a public comment
Send a private comment to the author(s)
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.