TY - CONF
T1 - An experimental study of design strategies for stiffening thin plates under compression
AU - Ramirez Chavez, Irving E.
AU - Noe, Cameron
AU - Sekar, Vigneshwaran
AU - Jogani, Shainil
AU - Israni, Siddharth
AU - Bhate, Dhruv
N1 - Funding Information:
This work was conducted as part of a research project in the MFG 598: Design for Additive Manufacturing course offered in the Spring of 2019 at the Arizona State University. The authors wish to acknowledge support from the Maricopa County Industrial Development Authority (MCIDA) and the Fulton Schools of Engineering at Arizona State University, where these parts were fabricated and tested, as well as Altair Engineering and nTopology for providing access to their software that was used to generate the designs in this paper.
Publisher Copyright:
© Solid Freeform Fabrication 2019: Proceedings of the 30th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2019. All rights reserved.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2019
Y1 - 2019
N2 - Increasing stiffness and failure loads while minimizing mass is useful in many engineering applications, including the design of thin plates and shells. In this paper, the performance of thin plates using a range of stiffening approaches were studied for the specific instance of compressive loading. Periodic, graded, stepped, “Voronoi” stochastic, and topologically optimized patterns were explored. These stiffening designs were realized using different software tools and manufactured with the Selective Laser Sintering (SLS) process. These 3D printed specimens were tested under compression to assess their mechanical response. Videos of these tests were recorded to study the shape of the failure modes. This data was analyzed to determine the performance of the different stiffener designs, in comparison to the performance of baseline plates without any stiffening. The study concludes with a discussion of the results and their implications for stiffening thin plates, showing that triangular and stochastic stiffening strategies show particular promise in increasing specific compressive stiffness and specific buckling load.
AB - Increasing stiffness and failure loads while minimizing mass is useful in many engineering applications, including the design of thin plates and shells. In this paper, the performance of thin plates using a range of stiffening approaches were studied for the specific instance of compressive loading. Periodic, graded, stepped, “Voronoi” stochastic, and topologically optimized patterns were explored. These stiffening designs were realized using different software tools and manufactured with the Selective Laser Sintering (SLS) process. These 3D printed specimens were tested under compression to assess their mechanical response. Videos of these tests were recorded to study the shape of the failure modes. This data was analyzed to determine the performance of the different stiffener designs, in comparison to the performance of baseline plates without any stiffening. The study concludes with a discussion of the results and their implications for stiffening thin plates, showing that triangular and stochastic stiffening strategies show particular promise in increasing specific compressive stiffness and specific buckling load.
KW - Compression
KW - Design for Additive Manufacturing
KW - Plate
KW - Shell
KW - Stiffener
KW - Topology Optimization
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M3 - Paper
AN - SCOPUS:85095973646
SP - 1893
EP - 1907
T2 - 30th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2019
Y2 - 12 August 2019 through 14 August 2019
ER -