초록 ▼

An impact test apparatus includes a barrel adapted to contain pressurized gas and having a sealed end and an opposed open end. A shuttle including a bore for carrying a test sample is positioned for translation within the barrel. A seal is provided on the shuttle for sealingly engaging the barrel. T

An impact test apparatus includes a barrel adapted to contain pressurized gas and having a sealed end and an opposed open end. A shuttle including a bore for carrying a test sample is positioned for translation within the barrel. A seal is provided on the shuttle for sealingly engaging the barrel. The seal divides the interior of the barrel into a portion open to the atmosphere and a sealed portion. A trigger element selectively retains the shuttle in a fixed position within the barrel and permits the shuttle to be released to accelerate toward the open of the barrel as the pressurized gas in the sealed portion of the barrel expands. Brake rings are located proximate the open end of the barrel to decelerate the shuttle and retain the shuttle substantially within the barrel while allowing the test sample to travel towards a target aligned with the open end of the barrel. The impact test apparatus permits reliable and reproducible impact testing of projectiles without the use of towers or explosive charges.

대표청구항 ▼

An impact test apparatus comprising: a barrel adapted to contain pressurized gas and having a sealed end and an opposed open end; a shuttle positioned for translation within the barrel, the shuttle including means for releasably carrying a test sample and sealing means for sealingly engaging the bar

An impact test apparatus comprising: a barrel adapted to contain pressurized gas and having a sealed end and an opposed open end; a shuttle positioned for translation within the barrel, the shuttle including means for releasably carrying a test sample and sealing means for sealingly engaging the barrel, the sealing means dividing the interior of the barrel into a portion open to the atmosphere and a sealed portion; means for supplying pressurized gas to the sealed portion of the interior of the barrel; trigger means for selectively retaining the shuttle in a fixed position in the barrel and for releasing the shuttle to permit the shuttle to accelerate toward the open end of the barrel as the pressurized gas in the sealed portion of the barrel expands; and stopping means proximate the open end of the barrel to decelerate the shuttle and retain the shuttle substantially within the barrel while allowing the test sample to travel toward a target aligned with the open end of the barrel.