Experimental investigation of static and fatigue behaviour of composites honeycomb materials using four point bending tests

In this study static and fatigue behaviours of honeycomb sandwich composites, made of aramide fibres and aluminium cores, are investigated through four-point bending tests. Damage and failure modes are reported and discussed. Global and local parameters were considered to evaluate the fatigue life of the analysed sandwich composites. Effects of core densities and the cell orientation (L or W) on the maximum load and on the damage processes (initiation and evolution) are also investigated.

[1]  Magnus Burman,et al.  Fatigue of foam core sandwich beams—1: undamaged specimens , 1997 .

[2]  K. Evans,et al.  Models for the elastic deformation of honeycombs , 1996 .

[3]  Carmine Pappalettere,et al.  An experimental investigation of static and fatigue behaviour of sandwich composite panels joined by fasteners , 2001 .

[4]  R. A. Shenoi,et al.  Fatigue Behaviour of Polymer Composite Sandwich Beams , 1995 .

[5]  Fatigue of Undamaged and Damaged Honeycomb Sandwich Beams , 2000 .

[6]  M. Wolcott.  Cellular solids: Structure and properties , 1990 .

[7]  H. G. Allen.  Analysis and design of structural sandwich panels , 1969 .

[8]  G. Belingardi,et al.  Fatigue analysis of honeycomb-composite sandwich beams , 2007 .

[9]  E. W. C. Wilkins,et al.  Cumulative damage in fatigue , 1956 .

[10]  Salim Belouettar,et al.  Evaluation of Kinematic Formulations for Viscoelastically Damped Sandwich Beam Modeling , 2006 .

[11]  I. Verpoest,et al.  The fatigue behaviour and damage development of 3D woven sandwich composites , 1998 .

[12]  Wilfried Becker,et al.  Closed-form analysis of the thickness effect of regular honeycomb core material , 2000 .

[13]  Ramesh Talreja,et al.  Fatigue of composite materials , 1987 .

[14]  M. Ashby,et al.  Cellular solids: Structure & properties , 1988 .

[15]  D. Zenkert,et al.  Fatigue of foam core sandwich beams—2: effect of initial damage , 1997 .

[16]  Jiunn Fang,et al.  Failure behavior of 3D woven composites under transverse shear , 2003 .

[17]  Fodil Meraghni,et al.  Mechanical behaviour of cellular core for structural sandwich panels , 1999 .

[18]  Douglas L. Jones,et al.  A Stiffness Degradation Model for Graphite/Epoxy Laminates , 1988 .

[19]  W. Hwang,et al.  Fatigue of Composites—Fatigue Modulus Concept and Life Prediction , 1986 .