Bergstrom, Torbjorn Stansen
Fused Deposition Modeling (FDM), a common form of 3d printing, has several key drawbacks that make it difficult to analyze using traditional engineering equations. This paper analyzed traditional engineering models in regards to 3d printed beams in bending and proposes adapted equations. The proposed infill based model accurately predicts the failure point of beams, and is suitable for both direct calculation of beam strength and for comparative analysis with changing part dimensions and printing variables. Additionally, a new system for breaking 3d printed truss bridges is proposed for use in educational settings, which allows quick and simple setup with minimal printing time.
Worcester Polytechnic Institute
Major Qualifying Project
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