Impact Testing of 3D Printed Kevlar-Reinforced Onyx Material
Abstract
Kevlar is a common reinforcement used in composites for applications requiring impact
resistance. This research evaluated the impact performance of 3D printed continuously
reinforced Kevlar fiber on 3D printed nylon composites containing chopped carbon fiber (CCF).
The 3D printer used was a Markforged Mark Two material extrusion system, and Onyx is the
trade name of Markforged’s nylon/CCF material. In this work, a diverse number of composite
architecture designs including type of infill pattern, number of Kevlar layers, and location of
Kevlar layers were investigated. The printed specimens were characterized using a Charpy
impact testing and gas gun ballistic testing. Results were compared on the basis of weight and
estimated part cost.