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Mechanics of Composite Materials
Published in: Mechanics of Composite Materials 6/2015

01-01-2015

Mechanical Behavior of Sandwich Composites Under Three-Point Bending Fatigue

Authors: K. Bey, K. Tadjine, R. Khelif, A. Chemami, M. Benamira, Z. Azari

Published in: Mechanics of Composite Materials | Issue 6/2015

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Abstract

The mechanical behavior of sandwich composite materials in fatigue loading is investigated. Fatigue tests in three-point bending were conducted on two types of sandwich materials, [04] and [0/902/0]. The rupture mode observed on tested specimens showed a debond between the core and skins, as well as cracks in the core at 45∙ to the neutral axis of sandwich. Degradation of the rigidity modulus in fatigue was determined from the deflection equation for the two sandwiches. The experiments revealed that the modulus of the [04] sandwich degraded faster than that of [0/902/0]. The evolution of shear modulus in fatigue of both sandwiches is also described analytically using exponential and polynomial models.
previous article Modeling the Creep Rupture of Tensile Rods in an Aggressive Medium with Account of a Variable Diffusion Coefficient
next article Energy of the Mechanical Destruction of an Elastomer Filled with Solid Particles

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Metadata
Title
Mechanical Behavior of Sandwich Composites Under Three-Point Bending Fatigue
Authors
K. Bey
K. Tadjine
R. Khelif
A. Chemami
M. Benamira
Z. Azari
Publication date
01-01-2015
Publisher
Springer US
Published in
Mechanics of Composite Materials / Issue 6/2015
Print ISSN: 0191-5665
Electronic ISSN: 1573-8922
DOI
https://doi.org/10.1007/s11029-015-9464-0

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