Flexural fatigue behavior of cross-ply laminates: An experimental approach

被引：33

作者：

A. R. Bezazi

A. El Mahi

J.-M. Berthelot

B. Bezzazi

机构：

[1] Laboratoire de Mécanique et de Structure (LMS), Université 08 Mai 1945, Guelma

[2] Institute of Acoustic, Mechanics Group of Composite and Mechanical Structures, University of le Mans, Le Mans

[3] Institute of the Materials of Constructions, University of Boumerdes, Boumerdes

来源：

Strength of Materials | 2003年 / 35卷 / 2期

关键词：

damage; epoxy matrix; fatigue; fatigue curves; hybrid fibers; Kevlar fibers; laminates; three-point bending;

D O I：

10.1023/A:1023762528362

中图分类号：

学科分类号：

摘要：

Within an experimental approach we describe the mechanical behavior of different resin-epoxy laminates reinforced with cross-ply Kevlar and glass fibers under conditions of static and cyclic three-point bending. In static tests, we consider the effect of stacking sequence, the thickness of 90 -oriented layers, reinforcement type on the mechanical behavior of laminates under loading and on realization of various damage modes leading to rupture. Cyclic loading studies have been performed in two steps. In the first stage, we inquire into the dependence of the behavior and durability of four glass fiber-reinforced laminate-types on the stacking sequence; the second stage is devoted to studying the dependence of cyclic strength and fatigue behavior of laminates on the reinforcement type. Fatigue tests are carried out in load-control regime for glass and hybrid (Kevlar + glass) fiber laminates. Fatigue curves are constructed in coordinates stress - number of cycles until fracture" from the criteria corresponding to a drop in stiffness by 5 and 10%. Analysis of the results obtained permits evaluation of the effect of the stacking sequence and the reinforcement type on the behavior of cross-ply laminates in cyclic loading. The presence of Kevlar fibers accounts for nonlinear behavior of laminates in static tests and for low cyclic strength in fatigue tests under three-point bending. © 2003 Plenum Publishing Corporation."

引用

页码：149 / 161

页数：12

共 43 条

[1]

Dharan C.K.H., Fatigue failure in graphite fibers and glass fibers-polymer composites, J. Mater. Sci., 10, pp. 1665-1670, (1975)

[2]

Awerbuch J., Hahn H.T., Fatigue of filamentary composite materials, ASTM STP 636, pp. 248-266, (1977)

[3]

Hahn H.T., Lorenzo L., Fatigue failure mechanisms in composite laminates. Advances in fracture research, Proc. 6th Int. Conf. on Fracture (New Delhi, India, 4-10 Dec.), pp. 549-568, (1984)

[4]

Mandell J.F., Fatigue Behavior of Fiber Resin Composites, Developments in Reinforced Plastics, pp. 67-107, (1982)

[5]

Talreja R., Fatigue of composite materials: Damage mechanisms and fatigue-life diagrams, Proc. Roy. Soc. London, 378, pp. 461-475, (1981)

[6]

Kim H.C., Ebert L.J., Fatigue life limiting parameters in fiber glass composites, J. Mater. Sci., 14, pp. 2616-2624, (1979)

[7]

Djebbar A., Sidoroff F., Vincent E.L., Etude du couplage traction-cisaillement dans le cas de sollicitations en flexion de matériaux composites verre/époxyde, Journée Nationale des Composites (JNC), 7 Nov., pp. 81-90, (1990)

[8]

Dody M., Modélisation des Caractéristiques Mécaniques et Études Expérimentales de l'Endommagement d'Un Composite, (1985)

[9]

Fiore L., Contribution À l'Étude du Comportement en Fatigue de Matériaux Composites À Renfort Verre Unidirectionnel, (1988)

[10]

Berthelot J.-M., Leblond P., El Mahi A., Le Corre J.-F., Transverse cracking of cross-ply laminates. Part 1. Analysis, J. Compos., 27, pp. 989-1001, (1996)

← 1 2 3 4 5 →