Blast Generation
At CIBM3, the flexible design of the different shock tubes allows generation of a wide range of blast loads by varying: 1) blast medium (helium, nitrogen, air), 2) changing the volume of the driver section, 3) changing the location of test section, 4) varying the overpressure magnitude by selecting different membrane thickness, and 5) altering the end plate configuration.
{Image : Blast Testing Facility}
Purpose: Generate field-relevant blast-shock profile in the study of shock-structure interactions and the effect of shock pulse on head forms and post mortem human specimen.
Capabilities: The pressure measurements can be done through the shock tube from 20 kPa up to 275 kPa (This range is indicated for incident pressure measurements).
Features: The shock tubes have an adjustable test section option. In addition, multiple membranes (Mylar membranes) and different kinds of driver gases (He, N, Air) can be used in the experiments. Each trial and experiment is always documented in detail. (The image 5 below is from one our eyewear experiments.) The data is acquired by NI PXIe-6366 data acquisition module. It has 8 simultaneous analog inputs at 2 MS/s/ch with 16 bit resolution, 16 MS/s AI throughput. In addition, it provides 2 analog outputs 3.33 MS/s, 16 bit resolution ±10 V.
