Soil penetration by projectiles has been studied for generations. Experimental studies on this subject was the impetus for the development of theoretical modeling of the phenomena. The authors developed a model of vertical penetration of granular soils, which they confirmed by previous experiments and dimensional analysis. Experimental results revealed nonmonotonic dependence between projectile deceleration and depth of penetration. Net resistant force was a complex function of variable deceleration and depth. This force was defined with pure dynamic and static components as well as with a mixed component important for interpreting experimental results. Theoretical analysis of nonmonotonic variation of resistance with depth allowed evaluation of static properties of noncohesive material using dynamic characteristics of projectile penetration. The authors acquired an understanding of the physical processes governing the projectile's deceleration. Velocity and acceleration were obtained as functions of initial velocity, depth of penetration, and media properties. The authors show two conditions when peaks of acceleration are present. The initial peak is the result of dynamic characteristics and the second peak is attributed to static characteristics of penetration.


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Media Info

  • Features: Appendices; Figures; References;
  • Pagination: p. 806-812
  • Serial:

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Filing Info

  • Accession Number: 00730001
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Dec 29 1997 12:00AM