Abstract
Additive manufacturing offers design freedom and the ability to create
complex geometries that would be impossible with traditional manufacturing
methods. However, this freedom comes with its own challenges, particularly
when it comes to the mechanical performance of the finished components.
While AM parts often exhibit strength and ductility comparable to their
traditional counterparts, defects associated with the manufacturing process
can still pose a challenge for safety-critical components. In this talk, we will
present computational and experimental results that explore the effects of
surface roughness, porosity, and cracks on the structural reliability of
additively manufactured structures subjected to dynamic loading scenarios.
Our findings challenge the conventional belief that these defects, which are
common in AM metallic components, always compromise the structural
integrity of the parts. Instead, we will show that they can be ignored, and in
some cases even leveraged to improve the mechanical performance of the
structures.