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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Further development and use of Ballistic Testing Apparatus for composite armor
Light-weight composite armor greatly protects our military and law enforcement but needs more developmental testing. This work continues development of a federally funded ballistic testing system started by F. Solis, with a current objective of obtaining 200+ m/s impact velocity and 500+ J of impact energy. Contributors besides Ancira and Peel include grant PI Dr. Shah Alam and undergraduate student helpers. The ballistic testing system is a vacuum cannon assisted by compressed air. The cannon was updated from a PVC pipe with a sabot projectile system using only atmospheric pressure to a steel pipe with a fast-acting, powered ball valve and a high-pressure booster system, all of which can withstand 2100 kPa (300 psi). Going to a steel barrel, using low-friction and light sabots, and adding a compressed air booster, greatly increased the impact velocity of the system’s penetrator. A data acquisition system, using vibration sensors, photoelectric sensors, and pressure transducers was developed. The 2-part sabot that carries a penetrator was upgraded with new designs and materials. With the highest recorded velocity of 165 m/s and energy of 367 J at a boost pressure of 717 kPa (104 psi), the system has not reached the desired velocity or energy but could exceed those if a shorter, larger diameter pipe tank is installed. Blow-by, tank geometry, and slower ball valve opening times are likely reasons for lower than desired velocities. The Ballistic Testing System is still a useful tool for testing ballistic panels.
Further development and use of Ballistic Testing Apparatus for composite armor
Light-weight composite armor greatly protects our military and law enforcement but needs more developmental testing. This work continues development of a federally funded ballistic testing system started by F. Solis, with a current objective of obtaining 200+ m/s impact velocity and 500+ J of impact energy. Contributors besides Ancira and Peel include grant PI Dr. Shah Alam and undergraduate student helpers. The ballistic testing system is a vacuum cannon assisted by compressed air. The cannon was updated from a PVC pipe with a sabot projectile system using only atmospheric pressure to a steel pipe with a fast-acting, powered ball valve and a high-pressure booster system, all of which can withstand 2100 kPa (300 psi). Going to a steel barrel, using low-friction and light sabots, and adding a compressed air booster, greatly increased the impact velocity of the system’s penetrator. A data acquisition system, using vibration sensors, photoelectric sensors, and pressure transducers was developed. The 2-part sabot that carries a penetrator was upgraded with new designs and materials. With the highest recorded velocity of 165 m/s and energy of 367 J at a boost pressure of 717 kPa (104 psi), the system has not reached the desired velocity or energy but could exceed those if a shorter, larger diameter pipe tank is installed. Blow-by, tank geometry, and slower ball valve opening times are likely reasons for lower than desired velocities. The Ballistic Testing System is still a useful tool for testing ballistic panels.
Further development and use of Ballistic Testing Apparatus for composite armor
Ancira, Eric (Autor:in)
01.12.2022
Sonstige
Elektronische Ressource
Englisch
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