Analytical Modeling of Composite Sandwich Panels under Blast Loads

Analytical solutions were derived for the transient response and damage initiation of a foam-core composite sandwich panel subjected to blast loading. The panel response was modeled in two consecutive phases: (1) a through-thickness wave propagation phase leading to permanent core crushing deformations and (2) a transverse shear wave propagation phase resulting in global panel deflections. The predicted transient deformation of a sandwich panel consisting of E-glass vinyl ester facesheets and H100 PVC foam core compared well with ABAQUS predictions. Analytical predictions of the critical impulse for damage initiation in several foam sandwich panels also compared well with ABAQUS predictions.

[1]  Mojtaba Moatamedi,et al.  A review of composite structures subjected to dynamic loading , 2007 .

[2]  V. Rangari,et al.  On the dynamic response of sandwich composites and their core materials , 2006 .

[3]  Y. Choo,et al.  Damage modelling of SCRIMP woven roving laminated beams subjected to transverse shear , 2005 .

[4]  Norman A. Fleck,et al.  Collapse mechanisms of sandwich beams with composite faces and a foam core, loaded in three-point bending. Part II: experimental investigation and numerical modelling , 2004 .

[5]  Zhenyu Xue,et al.  Metal sandwich plates optimized for pressure impulses , 2005, International Journal of Mechanical Sciences.

[6]  L. Librescu,et al.  Dynamic response of anisotropic sandwich flat panels to underwater and in-air explosions , 2006 .

[7]  Ashkan Vaziri,et al.  Metal sandwich plates subject to intense air shocks , 2007 .

[8]  Gerald Nurick,et al.  Experimental investigation into the response of chopped-strand mat glassfibre laminates to blast loading , 2002 .

[9]  Z. Aboura,et al.  A micromechanics model for 3D elasticity and failure of woven-fibre composite materials , 1999 .

[10]  M. Ashby,et al.  Metal Foams: A Design Guide , 2000 .

[11]  V. Rizov,et al.  Influence of the Foam Core Material on the Indentation Behavior of Sandwich Composite Panels , 2007 .

[12]  John Hetherington,et al.  Blast and ballistic loading of structures , 1994 .

[13]  R. Mines,et al.  Numerical simulation of the progressive collapse of polymer composite sandwich beams under static loading , 2002 .

[14]  Z. Hashin.  Failure Criteria for Unidirectional Fiber Composites , 1980 .

[15]  Vikram Deshpande,et al.  One-dimensional response of sandwich plates to underwater shock loading , 2005 .

[16]  Zhenyu Xue,et al.  A comparative study of impulse-resistant metal sandwich plates , 2004 .

[17]  G. Nurick,et al.  The deformation and tearing of thin circular plates subjected to impulsive loads , 1990 .

[18]  S. B. Menkes,et al.  Broken beams , 1973 .

[19]  N. Fleck,et al.  The dynamic response of composite sandwich beams to transverse impact , 2007 .

[20]  J. Vinson.  The Behavior of Sandwich Structures of Isotropic and Composite Materials , 1999 .