IEST-RP-DTE032: Pyroshock Testing Techniques

This Recommended Practice (RP), IEST-RP-DTE032.2, provides an overview of pyroshock testing concepts and compares provisions from other pyroshock documents. Much of this RP is devoted to acquisition and analysis of pyroshock data because proper time-history data acquisition and test specification development are common test industry problems. To avoid corrupted pyroshock data and resulting inaccurate pyroshock specifications, recommended practices for instrumentation and data acquisition systems are given.

If pyroshock testing equipment is used to simulate the detonation of a pyrotechnic device, a unique, custom design is usually required, with a few exceptions. There is no universal pyroshock testing technique or equipment that can handle all specifications and all dimensions for units under test, whether test units are individual components, subsystems, or complete sys-tems. This RP includes examples of different concepts and equipment configurations and notes any limitations. Several sections are devoted to the design and use of resonant fixtures for pyroshock simulations. Additionally, this RP contains an example of a three-dimensional pyroshock simulation with one impact to a resonant fixture that can provide a realistic simulation of pyroshock and prevent mechanical failure caused by overtesting with single-axis sequential test procedures.

Read a report by the Working Group Chair.

First printing, October 2009 (Supersedes previous versions, including IEST-RP-DTE032.1)

Pyroshock Testing Techniques was prepared by Working Group 032 of the IEST Design, Test, and Evaluation Division (WG-DTE032).

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