The United States of America, As Represented by the Secretary, Department of Health and Human Services

Paul S Blank

Rea Ravin

Joshua Zimmerberg

Sergey Bezrukov

Alex Steinkamp

Kim Lee Mcafee

A device and method for simulating a blast shock wave of the type produced by explosive devices such as bombs. A pneumatic charge releases a blast shock wave along a conduit which terminates in a first outlet that communicates with the atmosphere and a second outlet that is sealed to a specimen chamber. The first outlet has a quick release valve that prevents venting of the pneumatic charge to the atmosphere until the pressure at the valve reaches a predetermined level that opens the valve. The pneumatic charge therefore initially flows through the second outlet to direct the blast into the specimen chamber, until subsequent opening of the quick release valve redirects the gas flow out of the first outlet and rapidly reduces pressure in the chamber. The blast wave closely simulates the Friedlander curve, and its effects are viewed during instead of only after the blast is completed.

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Gettysburg, PA, United States of America

Paul S Blank