Impact-related tests on composite specimens can be conducted in various approaches, for example, by the controlled detonation of explosives, dropping weights, firing projectiles, shock tubes, etc. Each method has its own advantages and disadvantages, especially pertaining to the nature of the impact being administered to the specimen. For example, the detonation of explosives, while relatively easy to perform, creates difficulties in predicting and measuring the incident pressures, due to the complex wave fronts typically created. On the other hand, shock tubes have been adopted in several impact studies owing to the fact that they enable the generation of plane wave fronts with fairly predictable and controllable parameters. The working principle of a typical shock tube is very succinctly described as follows: it comprises a long rigid cylindrical tube, typically made of metal, with a gas at high pressure and a gas at lower pressure separated by a diaphragm. The high pressure region is called the driver section, while the low pressure region is called the driven section. The specimen to be tested is constrained (usually, clamped) at the end of the driven section. At a critical pressure, the diaphragm bursts and a wave front propagates down the length of the driven section, eventually impacting with the specimen. Sensors are placed at appropriate locations to measure various parameters like the gas velocity, density, temperature, specimen deflection, etc.