Research Article
Mar 1974
Projectile Penetration of Elastic-Plastic Earth Media
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VIEW THE REPLYAuthor: Lewis ThigpenAuthor Affiliations
Publication: Journal of the Geotechnical Engineering Division
Volume 100, Issue 3
Abstract
The penetration of projectiles into earth materials is described. Some factors influencing the constitutive equations for this continuum are analyzed and example numerical solutions using a two-dimensional wave propagation code are given for penetrations into two rock materials. The theory is based on the assumption that both the projectile and penetrated medium can be represented as an elastic-plastic continuum. Response quantities evaluated include deformation and displacements of the penetrated medium, and depth, velocity, and deceleration of the projectile during penetration. Data presented for both projectile and target response are in good qualitative agreement with experimental observations.
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Published In
Journal of the Geotechnical Engineering Division
Volume 100 • Issue 3 • March 1974
Pages: 279 - 294
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© 1974 American Society of Civil Engineers.
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Published in print: Mar 1974
Published online: Feb 10, 2021
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Lewis Thigpen
Dept. of Civ. Engrg., Lowell Technological Inst., Lowell, Mass; Member of Tech. Staff, Theoretical Fluid Dynamics Div., Sandia Labs., Albuquerque, N.M.
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