Browsing by Author "Hazell, P. J."

Browsing by Author "Hazell, P. J."

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  • 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 ...
  • Nanda, H.; Appleby-Thomas, G. 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 ...
  • 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 ...
  • 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 ...
  • Appleby-Thomas, G. 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 ...
  • Appleby-Thomas, G. 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 ...
  • Shepherd, C. J.; Appleby-Thomas, G. 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 ...
  • 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 ...
  • Hazell, P. J.; Appleby-Thomas, G. 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 ...
  • Hazell, P. J.; Appleby-Thomas, G. J.; Herlaar, K.; Painter, J. (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 ...
  • Stennett, C.; Cooper, G. A.; Hazell, P. J.; Appleby-Thomas, G. 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 ...
  • Petel, O. E.; Appleby-Thomas, G. 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 ...
  • 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 ...
  • 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 ...
  • Hazell, P. J.; Fellows, N. A.; Hetherington, J. 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 ...
  • 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. ...
  • Appleby-Thomas, G. J.; Hazell, P. J.; Wilgeroth, J. M.; Shepherd, C. J.; Wood, D. C.; Roberts, A. (American Institute of Physics, 2011-12-31)
    Plate-impact experiments have been employed to investigate the dynamic response of three readily available tissue simulants for ballistic purposes: gelatin, ballistic soap (both subdermal tissue simulants), and lard ...
  • Appleby-Thomas, G. J.; Hazell, P. J.; Wilgeroth, J. M.; Wood, D. C. (2010-09-17)
    Encapsulated wire-element stress gauges enable changes in lateral stress during shock loading to be directly monitored. However, there is substantial debate with regards to interpretation of observed changes in stress ...
  • Appleby-Thomas, G. J.; Hazell, P. J.; Wilgeroth, J. M.; Wood, D. C. (American Institute of Physics, 2010-12-31)
    Encapsulated wire-element stress gauges enable changes in lateral stress during shock loading to be directly monitored. However, there is substantial debate with regards to interpretation of observed changes in stress ...
  • Shepherd, C. J.; Appleby-Thomas, G. J.; Wilgeroth, J. M.; Hazell, P. J.; Allsop, D. F. (Elsevier Science B.V., Amsterdam., 2011-12-31)
    The effects of projectile penetration into soft tissue are often studied using the tissue simulant ballistic soap. Consequently, a full understanding of the high strain-rate response of ballistic soap is desirable. Using ...