Abstract
The capability of Additive Manufacturing (AM) to manufacture multi-materials allows the fabrication of complex and multifunctional parts with varying mechanical properties. Multi-material AM involves the fabrication of 3D printed objects with multiple heterogeneous material compositions. The material jetting AM process specifically has the capability to manufacture multi-material structures with both rigid and flexible material properties. Existing research has investigated the fatigue properties of 3D printed multi-material specimens and shows that there is a weakness at the multi-material interface. This paper seeks to investigate the effects of gradual material transitions on the fatigue life of 3D printed multi-material specimens, given a constant volume of flexible material. In order to examine the fatigue life at the multi-material interface, discrete digital-material gradient steps are compared against the true functional gradients created through voxel-level design. Results demonstrate the negative effects of material gradient transitions on fatigue life as well as the qualitative material properties of true versus discrete gradients.
| Original language | English (US) |
|---|---|
| Pages | 578-592 |
| Number of pages | 15 |
| State | Published - 2020 |
| Event | 28th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2017 - Austin, United States Duration: Aug 7 2017 → Aug 9 2017 |
Conference
| Conference | 28th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2017 |
|---|---|
| Country/Territory | United States |
| City | Austin |
| Period | 8/7/17 → 8/9/17 |
All Science Journal Classification (ASJC) codes
- Surfaces, Coatings and Films
- Surfaces and Interfaces