The experimental results have been modelled using DYNA 2D and the numerical predictions found to be dependant on the constitutive relationship which is used. Research J. Harding , C. Ruiz, P. Hardy. Keywords materials, modelling, deformation. Keyphrases material modelling under high rates of deformationconstitutive equations, constitutive equations. New types of aero-engine are subject to stringent airworthiness testing in respect of these two possibilities.
Damage arising from both types of impact involves complex and dynamic deformation processes.
In order to minimise weight titanium alloys, in particular Ti6Al4V, are widely used in aero engines. Research J. Harding , C. Ruiz, P.G. Hardy, D.A.S. Macdougall. Keywords aeroengines, strain, impact. Keyphrases constitutive equations, high rates of strain. And today this technology is considered a mature and proven design tool for the development of conventional 'ductile' steel automotives.