An analytical technique is presented for obtaining the large amplitude, damped response of a foam-core composite sandwich panel subjected to uniform pressure pulse loading. The predicted panel response was in agreement with finite element analysis, and it was used to examine the blast resistance of panels with various foam cores. Although blast resistance generally increased with the increasing core density, panels with the densest cores exhibited no energy absorption before panel failure. The panel with the PVC H200 foam also sustained higher failure pressure per unit areal weight density than the denser panels with Klegecell R300 and HCP100 foams.
CarreraEBrischettoS. A survey with numerical assessment of classical and refined theories for the analysis of sandwich plates. Appl Mech Rev2009; 62: 010803–010803. DOI: 10.1115/1.3013824.
5.
HoheJLibrescuL. Core and face-sheet anisotropy in deformation and buckling of sandwich panels. AIAA J2004; 42: 149–158.
6.
LiRKardomateasGASimitsesGJ. Point-wise impulse (blast) response of a composite sandwich plate including core compressibility effects. Int J Solids Struct2009; 46: 2216–2223.
7.
LiRKardomateasGA. A high-order theory for cylindrical sandwich shells with flexible cores. J Mech Mater Struct2009; 4: 1453–1467.
8.
LiRKardomateasGA. Nonlinear high-order core theory for sandwich plates with orthotropic phases. AIAA J2008; 46: 2926–2934.
9.
HoheJLibrescuL. Recent results on the effect of the transverse core compressibility on the static and dynamic response of sandwich structures. Compos Part B Eng2008; 39: 108–119.
10.
HauseTLibrescuL. Dynamic response of doubly-curved anisotropic sandwich panels impacted by blast loadings. Int J Solids Struct2007; 44: 6678–6700.
11.
Hoo Fatt MS, Surabhi H and Gao Y. Blast response of sandwich shells with crushable foam cores. In: Proceedings of IMPLAST 2010, Providence, RI, October 12–14, 2010.
12.
TilbrookMTDeshpandeVSFleckNA. The impulsive response of sandwich beams: analytical and numerical investigation of regimes of behavior. J Mech Phys Solids2006; 54: 2242–2280.
13.
DeshpandeVSFleckNA. One-dimensional response of sandwich plates to underwater shock loading. J Mech Phys Solids2005; 53: 2347–2383.
14.
FleckNADeshpandeVS. The resistance of clamped sandwich beams to shock loading. J Appl Mech2004; 71: 386–401.
15.
XueZHutchinsonJW. A comparative study of blast-resistant metal sandwich plates. Int J Impact Eng2004; 30: 1283–1305.
16.
WuC-IVinsonJR. On the nonlinear oscillations of plates composed of composite materials. J Compos Mater1969; 3: 548–561.
17.
GibsonLJAshbyMF. Cellular solids: structure and properties. Cambridge: Cambridge University Press, 1999.
18.
VinsonJR. The behavior of sandwich structures of isotropic and composite materials. Lancaster, PA: Technomic Publishing Company, 1999.
19.
Dassault Systèmes, ABAQUS, Inc. ABAQUS User Manual, Version 6.9, 2010.
20.
MinesRAWAliasA. Numerical simulation of the progressive collapse of polymer composite sandwich beams under static loading. Composites Part A2002; 33: 11–26.
DanielIM. Failure of composite materials. Strain2007; 43: 4–12.
23.
SteevesCAFleckNA. Collapse mechanisms of sandwich beams with composite faces and a foam core, loaded in three-point bending. Part II: experimental investigation and numerical modeling. Int J Mech Sci2004; 46: 585–608.
24.
FleckNASridharI. End compression of sandwich columns. Appl Sci Manuf2002; 33: 353–359.
25.
DanielIM. Influence of core properties on the failure of composite sandwich beams. J Mech Mater Struct2009; 4: 1271–1286.
26.
MitraN. A methodology for improving shear performance of marine sandwich composites: sandwich composite panel with shear key. Compos Struct2010; 92: 1065–1072.
