Additive Manufacturing Along Principal Stress Lines
Name
Additive manufacturing.pdf
Size
3.03 MB
Format
Adobe PDF
Checksum (MD5)
0e19b7baf414bb5e0c67a3b49aa1d569
Author(s)
Tam, Kam-Ming Mark
Mueller, Caitlin T
Date Issued
June 2017
Journal
3D Printing and Additive Manufacturing
Publisher
Mary Ann Liebert Inc
Citation
Tam, Kam-Ming Mark and Caitlin T. Mueller. “Additive Manufacturing Along Principal Stress Lines.” 3D Printing and Additive Manufacturing 4, 2 (June 2017): 63–81 © 2017 Mary Ann Liebert, Inc
Version
Final published version
Abstract
Optimization techniques developed for additive manufacturing (AM) to maximize the structural stiffness of printed parts are often computationally expensive reformulations of classical procedures that do not typically consider the mechanical behavior introduced to the printed part by the AM fabrication process, which is layer-based, and result in pieces with significant anisotropy. The misalignment of filament orientation and structural action negates the potential benefits of optimization. Addressing this problem, this article presents a two-part research approach exploring a new method of material deposition called Stress Line Additive Manufacturing (SLAM), which deposits filament along paths derived from principal stress lines. The proposed method unifies the design and optimization of the geometry and filament layout of AM-produced parts, and is compatible to the operational characteristics of fused deposition modeling (FDM). Experimentally validating the structural significance of oriented filament, the first part of the research implements SLAM on a commercial platform for planar design cases. Ongoing research to adapt SLAM for complex 2.5D surface geometries using a six-axis industrial robot arm and a custom-designed heated extruder is then presented in Implementation 2: Robot-Enabled SLAM for 2.5-D Cases. The presented research opens new possibilities for structurally performative fabrication.
MIT Department
Massachusetts Institute of Technology. Department of Civil and Environmental Engineering
Massachusetts Institute of Technology. School of Architecture and Planning
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1089/3DP.2017.0001
