Evaluation of the safety quality of automotive pyrotechnic articles following their exposure to triaxial vibrations with predetermined thermal conditioning cycles

Abstract

Pyrotechnic articles fall into the field of dangerous products, Risk Class 1 - explosives, thus requiring the assurance of their security quality in order to make them available on the market. The family of pyrotechnic articles also includes pyrotechnic articles for vehicles. The main types of pyrotechnic articles intended for vehicles are: actuators (triggers), airbag gas generators, airbag modules, igniters, micro gas generators, semifinished products and seat belt pretensioners safety. Since pyrotechnic articles for vehicles are only used in the composition of security devices in vehicles, they must meet the essential security requirements, being subjected to trials and tests based on harmonized standards for this field. The paper highlights the results of the experimental tests that were obtained using the latest generation specialized equipment intended for the determination of the triaxial vibration parameter and under conditions of variable temperature with predetermined cycles, in order to evaluate the security quality of pyrotechnic articles intended for automobiles (pyrotechnic actuator for automotive use, seat belt pre-tensioner) included in category P1.