Interior Ballistics R&D
An intimate understanding of interior ballistics is necessary for the successful development of an ammunition concept or a new weapon system. At Veritay, we offer a wealth of experience in interior ballistics computer simulation and experimental diagnostics.
We have a variety of computer codes available for interior ballistics modeling:
- IBHVG2 (Lumped parameter)
- XNOVA KTC (1-D)
- BRL-CB (Closed bomb burn rate reduction)
- Blake (Thermochemical property computation)
- NASA-Lewis code (CET86)
- In-house created software
- ANDREA (Telescoped ammunition simulation)
- XBR-2D (Gun barrel heat transfer analysis)
We use a variety of experimental test fixtures to complement the computer simulations and provide data to refine simulation accuracy and aid the development process. Test fixtures are fabricated and instrumented to meet the customer's and the program's needs. Typical instrumentation includes:
- Piezoelectric pressure transducers
- Thermocouples
- Muzzle velocity
- High-speed flash photography
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For ignition system development or troubleshooting, it is sometimes beneficial to visually record the initial stages of propellant bed ignition and flamespread propagation through the propellant bed. Veritay has routinely designed and fabricated ignition diagnostic fixtures having an observation window which allows flamespread propagation to be captured on high speed movie film. These fixtures have been built typically for medium and large caliber systems. Ignition diagnostic fixtures typically use the following instrumentation:
- 16mm Hycam high speed motion picture footage
- Piezoelectric pressure transducers
- Accelerometers
- Thermal instrumentation
- In-bore or in-chamber projectile position, velocity, and acceleration
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