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Rock mechanics

, Volume 15, Issue 1, pp 25–40 | Cite as

Behavior of diorite under impact by variously-shaped projectiles

  • Akihiko Kumano
  • Werner Goldsmith
Article

Summary

Behavior of Diorite Under Impact by Variously-Shaped Projectiles

The effects of striker diameter and tip geometry on the crater and crack network produced in diorite by normal projectile impact in the energy range from 4–30 J was investigated. Ejecta kinematics were determined by high-speed photography; elastic strain wave propagation was measured by embedded gages in a composite specimen; and the damage pattern was ascertained from an examination of the sectioned specimen. It was found that the projectile nose shape exerts a strong influence on the shape of the elastic transient, on the crater geometry, on the extent of the crack network and on the average size of the ejecta. The crater depth was found to be the most repeatable parameter in identical tests using the same striker and initial kinetic energy.

Keywords

Damage Pattern Initial Kinetic Energy Crater Depth Strain Wave Sectioned Specimen 
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Copyright information

© Springer-Verlag 1982

Authors and Affiliations

  • Akihiko Kumano
    • 1
  • Werner Goldsmith
    • 1
  1. 1.Department of Mechanical EngineeringUniversity of CaliforniaBerkeleyUSA

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