Aramid composites after fragment-proof test by ultrasonic ir thermography

Modern soft ballistic armour is composed of high-strength fibres often used as packages of loose fabrics or laminates. These fibres include carbon, glass fibres, polymer fibres including aramid fibres and polyethylene fibres. Soft armour is applied to provide ballistic protection typically against the impact of small arms projectiles and fragments. In order to determine the level of ballistic protection for ballistic armour, fragment-simulating projectiles (FSP) are used which simulate the properties of fragments created during the explosion of various types of grenades and projectiles. The above-mentioned composites can include a variety of defects such as manufacturing defects, moisture ingress, projectiles impact and other defects. Infrared thermography is a method, which can be used to non-destructive testing and detecting defects of this type of material. However, ultrasonic stimulation is one of method of thermal stimulation used for detection defects in composite. The article presents the results of experimental research of multilayer aramid composite after fragment-proof tests by ultrasonic IR thermography method.

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Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).