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Intact capture of hypervelocity projectiles.

P Tsou1

  • 1Jet Propulsion Laboratory, California Institute of Technology, Pasadena, USA.

International Journal of Impact Engineering
|January 1, 1990
PubMed
Summary

Scientists captured intact hypervelocity projectiles using microcellular polymer foam. This passive capture method preserves projectile mass and velocity data, enabling new scientific and technological applications.

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Area of Science:

  • Materials Science
  • Physics
  • Engineering

Background:

  • Capturing hypervelocity projectiles intact is crucial for scientific research and technological advancements.
  • Traditional methods are often costly or infeasible for high-speed impact studies.

Purpose of the Study:

  • To demonstrate the laboratory capability of capturing hypervelocity projectiles intact.
  • To investigate the effectiveness of microcellular underdense polymer foam as a passive capture medium.
  • To analyze the parameters influencing capture efficiency and projectile integrity.

Main Methods:

  • Laboratory experiments involving the launch and capture of aluminum projectiles.
  • Utilizing microcellular underdense polymer foam for passive projectile deceleration and capture.
  • Analysis of captured projectiles for mass retention, structural integrity, and velocity data.

Main Results:

  • Successfully captured 1.6 mm aluminum projectiles at 6 km/s intact.
  • Achieved up to 95% mass retention of the captured projectiles.
  • Demonstrated that the underdense foam preserves projectile velocity components (speed and direction).

Conclusions:

  • Passive capture of hypervelocity projectiles using underdense polymer foam is feasible and effective.
  • This method offers a cost-efficient way to obtain intact projectiles for analysis.
  • The technique opens new avenues for scientific and technological applications requiring hypervelocity impact studies.
Keywords:
NASA Center JPLNASA Discipline ExobiologyNASA Discipline Number 52-50NASA Program Exobiology

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