Browsing by Author "Hazell, P. J."

Browsing by Author "Hazell, P. J."

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  • Advances in Applied Ceramics: Guest editorial 
    Hazell, P. J. (Maney Publishing, 2010-12-31)
    The development, engineering, and testing of ceramic armour systems and materials has been carried out during the past 50 years and dates back to the pioneering work of M. L. Wilkins and his colleagues [1]. Arguably, the ...
  • The bactericidal effect of shock waves 
    Leighs, J. A.; Appleby-Thomas, Gareth J.; Wood, David C.; Goff, Michael J.; Hameed, Amer; Hazell, P. J. (Institute of Physics, 2014-05-07)
    There are a variety of theories relating to the origins of life on our home planet, some of which discuss the possibility that life may have been spread via inter-planetary bodies. There have been a number of investigations ...
  • Ballistic behaviour of explosively shattered alumina and silicon carbide targets 
    Nanda, H.; Appleby-Thomas, Gareth J.; Wood, D. C.; Hazell, P. J. (Maney Publishing, 2011-12-31)
    The resistance offered by three ceramic materials of varying strength that have been subjected to explosive loading has been investigated by depth-of- penetration testing. Each material was completely penetrated by a ...
  • Crack softening damage model for ceramic impact and its application within a hydrocode 
    Hazell, P. J.; Iremonger, M. J. (American Institute of Physics, 1997-12-31)
    A physically based crack softening damage model has been developed and used in a non-linear transient dynamic computer code (AUTODYN-2D). It is assumed that there is a finite number of orientated pre-existing flaws within ...
  • The design of mosaic armour: The influence of tile size on ballistic performance 
    Hazell, P. J.; Roberson, C. J.; Moutinho, M. (2008-03-15)
    Silicon carbide square tiles of different areal geometries and manufactured via two different processing routes have been bonded to polycarbonate layers to evaluate their ballistic performance. Four ceramic tile sizes ...
  • Deviatoric response of an armour-grade aluminium alloy 
    Appleby-Thomas, Gareth J.; Hazell, P. J.; Millett, J.; Bourne, Neil K. (AIP American Institute of Physics, 2009-12-31)
    Aluminium alloys such as 5083 H32 are established light-weight armour materials. As such, the shock response of these materials is of great importance. The shear strength of a material under shock loading provides an ...
  • The dynamic behaviour of a modified polyurethane resin 
    Appleby-Thomas, Gareth J.; Hazell, P. J.; Stennett, C.; Cooper, G.; Cleave, R. (2011-06-15)
    The dynamic response of both a pure and nano-reinforced polyurethane replacement resin (PRR) have been investigated using plate impact techniques. Similar U-P-U- S Hugoniot equations of state have been established for ...
  • The dynamic behaviour of ballistic gelatin 
    Shepherd, C. J.; Appleby-Thomas, Gareth J.; Hazell, P. J.; Allsop, D. F. (AIP American Institute of Physics, 2009-12-31)
    In order to characterise the effect of projectiles it is necessary to understand the mechanism of both penetration and resultant wounding in biological systems. Porcine gelatin is commonly used as a tissue simulant in ...
  • The effect of specimen thickness on the shock propagation along the in-fibre direction of an aerospace-grade CFRP laminate 
    Hazell, P. J.; Stennett, C.; Cooper, G. (Elsevier, 2009-02)
    In-fibre measurements of the Hugoniot have been carried out on a carbon fibre-reinforced polymer composite. For this material, we have shown at high shock stresses, a two component wave was formed consisting of a fast ...
  • The failure of a tungsten carbide-cobalt cored projectile penetrating a hard target 
    Woolmore, N. J. (Engineering Systems Department, 2010-11-08)
    Experimental results are presented from an investigation of the parameters of a ceramic-faced armour system that are required to induce damage in a tungsten carbide - cobalt (WC-Co) penetrator. A WC-Co material model has ...
  • Impact, penetration, and perforation of a bonded carbon-fibre-reinforced plastic composite panel by a high-velocity steel sphere: An experimental study 
    Hazell, P. J.; Appleby-Thomas, Gareth J.; Kister, G. (Professional Engineering Publishing, 2010-12-31)
    In this work, the response of a bonded CFRP composite panel, manufactured by bonding two laminates together, to impact, penetration and perforation by a high-velocity steel sphere has been studied. The response of a ...
  • Inelastic deformation and failure of tungsten carbide under ballistic-loading conditions 
    Hazell, P. J.; Appleby-Thomas, Gareth J.; Herlaar, K.; Painter, Jonathan (Elsevier Science B.V., Amsterdam., 2010-12-31)
    High-speed photography has been used to investigate the dynamic behaviour of similar grades of WC-Co hardmetals during ballistic impacts with velocities in the range of 28-484 m/s. Key features of the failure of similar ...
  • Initiation of secondary explosives measured using embedded electromagnetic gauges 
    Stennett, C.; Cooper, G. A.; Hazell, P. J.; Appleby-Thomas, Gareth J. (AIP American Institute of Physics, 2009-12-31)
    There is considerable evidence that secondary explosive materials having a relatively large (10-12%) proportion of HTPB binder do not exhibit DDT under cook-off. However, the understanding of the mechanisms controlling ...
  • Lateral stress evolution in chromium sulfide cermets with varying excess chromium 
    Petel, O. E.; Appleby-Thomas, Gareth J.; Wood, D. C.; Capozzi, A.; Nabavi, Seyed Ali; Goroshin, S.; Frost, D. L.; Hazell, P. J. (2016-07-01)
    The shock response of chromium sulfide-chromium, a cermet of potential interest as a matrix material for ballistic applications, has been investigated at two molar ratios. Using a combustion synthesis technique allowed for ...
  • Measuring the strength of brittle materials by depth-of-penetration testing 
    Hazell, P. J. (Maney Publishing, 2010-12-31)
    Based on an energy conservation model, the strength offered by a number of brittle materials has been calculated from depth-of-penetration (DOP) test results. Each material was completely penetrated by a tungsten carbide ...
  • Modelling and characterization of cell collapse in aluminium foams during dynamic loading 
    Kader, M. A.; Islam, M. A.; Hazell, P. J.; Escobedo, J. P.; Saadatfar, M.; Brown, A. D.; Appleby-Thomas, Gareth J. (2016-07-01)
    Plate-impact experiments have been conducted to investigate the elastic–plastic behaviour of shock wave propagation and pore collapse mechanisms of closed-cell aluminium foams. FE modelling using a meso-scale approach has ...
  • Normal and oblique penetration of woven CFRP laminates by a high velocity steel sphere 
    Hazell, P. J.; Kister, G.; Stennett, C.; Bourque, P.; Cooper, G. (Elsevier Science B.V., Amsterdam., 2008-05-31)
    In this research, two thicknesses of a woven CFRP laminate have been subjected to impact by a steel sphere in a velocity regime ranging from 170 to 374 m/s. Impact and penetration of targets at normal and oblique incidence ...
  • A note on the behind armour effects from perforated alumina/aluminium targets 
    Hazell, P. J.; Fellows, N. A.; Hetherington, John G. (Elsevier Science B.V., Amsterdam., 1998-12-31)
    A thin, ceramic-faced armour, separated from a thick metal block, has been subjected to high-velocity impact by a 6.35 mm diameter steel sphere. Experimental work was carried out which compared firings into ceramic-fac ...
  • The numerical analysis of dynamically loaded ceramic: A crack softening approach 
    Hazell, P. J.; Iremonger, M. J. (John Wiley & Sons, Ltd, 2000-12-31)
    A physically based crack softening approach to modelling the failure of brittle materials that have been subjected to dynamic loading is presented and applied to a two-dimensional non-linear transient dynamic hydrocode. ...
  • On the behaviour of porcine adipose and skeletal muscle tissues under shock compression 
    Wilgeroth, J. M. (DEAS, 2014-06-10)
    The response of porcine adipose and skeletal muscle tissues to shock compression has been investigated using the plate-impact technique in conjunction with manganin foil pressure gauge diagnostics. This approach has ...