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Updated: Jun 14, 2026

Evaluating Primary Blast Effects In Vitro
10:51

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Published on: September 18, 2017

Shock experiments and numerical simulations on low energy portable electrically exploding foil accelerators.

A K Saxena1, T C Kaushik, Satish C Gupta

  • 1Applied Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India. a_saxena@barc.gov.in

The Review of Scientific Instruments
|April 8, 2010
PubMed
Summary

Two portable accelerators were developed for shock studies, achieving projectile velocities up to 4.0 km/s. Experiments and simulations show good agreement with equation of state data, suggesting potential for higher shock pressures.

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Area of Science:

  • Materials Science
  • Physics
  • Engineering

Background:

  • Shock studies are crucial for understanding material behavior under extreme conditions.
  • Developing compact, portable accelerators enables small-scale laboratory investigations.

Purpose of the Study:

  • To develop and characterize low-energy portable electrically exploding foil accelerators for shock wave research.
  • To validate numerical simulations against experimental data for these novel systems.

Main Methods:

  • Utilized portable electrically exploding foil accelerators (1.6 and 8 kJ).
  • Measured projectile velocities using a Fabry-Perot velocimeter and flyer tilt with fiber optics.
  • Conducted high-pressure impact experiments on tantalum and aluminum targets.
  • Developed and validated a 1D hydrodynamic code with realistic equation of state and resistivity models.

Main Results:

  • Achieved projectile velocities up to 4.0 km/s with Kapton flyers.
  • Measured impact pressures up to 27 GPa (tantalum) and 18 GPa (aluminum).
  • Experimental results showed good agreement with established equation of state data.
  • Numerical simulations closely matched experimental flyer velocity profiles, outperforming magnetohydrodynamic simulations.

Conclusions:

  • The developed accelerators and numerical methods are effective for small-scale shock studies.
  • The study validates the use of these systems for generating moderate to high pressures.
  • Numerical modeling suggests potential for further optimization to achieve even higher shock pressures.