The Objet PolyJet 3D Printing process provides the ability to print graded materials featuring
both stiff and elastomeric polymers. This capability allows for a variety of new design
possibilities for additive manufacturing such as living hinges, shock absorbing casings, and
integrated gaskets. Such design features typically rely upon the ability of traditional elastomers
to experience large and repeated strains without permanent deformation or damage. However,
voids and other flaws inherent to many Additive Manufacturing (AM) processes can have a
significant negative impact on the fatigue life of elastomeric AM materials. In this paper, the
authors seek to fill a gap in the literature by characterizing the fatigue life of a direct 3D printed
elastomer, and the multi-material interface. Based on the results, the authors offer advice for
improving fatigue life of printed elastomeric components.Mechanical Engineerin
