Double Cantilever Beam Mode-I Testing Validation in Large-Scale Additive Manufacturing Carbon Composite
Testing for mechanical properties for additive manufacturing has been based on already existing standards for traditional manufacturing methods. For composites in large scale additive manufacturing there is a research gap in bond strength and fracture toughness for a single layer interface. By using Double cantilever beam Mode I, this thesis manuscript validates testing parameters and protocols to describe the intricacies of ABS matrix 20 wt.% carbon filled composite, specifically on the layer-to-layer interface. Studies suggest that fracture toughness is sensitive to process parameters, like deflection speed and sharpened crack tip at the layer interface of BAAM 3D printed part and by observing the type of failure it was revealed what strain rate and what sample preparation protocols are optimal for repeatable results characterization of large-scale additive manufacturing parts.
Mechanical engineering|Materials science|Plastics
Camacho, Luis Alfonso, "Double Cantilever Beam Mode-I Testing Validation in Large-Scale Additive Manufacturing Carbon Composite" (2023). ETD Collection for University of Texas, El Paso. AAI30567452.