The objective of the present study is to predict analytically the material perforation under hyper velocity impact. Hyper velocity impact is a complex phenomenon involving wave propagation, penetration and responses exceeding elastic limits, leading to hydrodynamic behaviour. A general-purpose program (GPP) that permits a combination of non-linear finite element technique and explicit integration scheme, is employed for the simulations. The geometry of perforation is computed for various projectiles with different incident angles, impact velocities and materials. The computed values are compared with test results available in the literature. The results indicate excellent agreement with the measurements and give good insight into the effect of various parameters on the perforation size and geometry.

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dc.contributor.authorSuhas, M.
dc.contributor.authorSamgeeth, R.
dc.contributor.authorVeenaranjini, S.M.
dc.contributor.authorSingh, G.
dc.date.accessioned2026-02-05T11:00:17Z
dc.date.issuedPerforation under hyper velocity impact - A prediction using finite element technique
dc.description.abstract2005
dc.identifier.citationJournal of the Institution of Engineers (India): Aerospace Engineering Journal, 2005, 86, NOV., pp. 69-74
dc.identifier.issn2573423
dc.identifier.urihttps://idr.nitk.ac.in/handle/123456789/27904
dc.subjectElastic limits
dc.subjectGeneral-purpose program (GPP)
dc.subjectHyper velocity
dc.subjectComputational geometry
dc.subjectComputer simulation
dc.subjectFinite element method
dc.subjectHydrodynamics
dc.subjectParameter estimation
dc.subjectWave propagation
dc.subjectVelocity control
dc.titleThe objective of the present study is to predict analytically the material perforation under hyper velocity impact. Hyper velocity impact is a complex phenomenon involving wave propagation, penetration and responses exceeding elastic limits, leading to hydrodynamic behaviour. A general-purpose program (GPP) that permits a combination of non-linear finite element technique and explicit integration scheme, is employed for the simulations. The geometry of perforation is computed for various projectiles with different incident angles, impact velocities and materials. The computed values are compared with test results available in the literature. The results indicate excellent agreement with the measurements and give good insight into the effect of various parameters on the perforation size and geometry.

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