Recently, engineered metamaterials have aroused considerable interests in many fields, due to their distinctive characteristics different from conventional materials. This paper proposes a level-set based topological optimization method for design of the mechanical metamaterials with negative Poisson’s ratio. The strain energy method is employed to predict the effective properties of the periodic microstructure. The adjoint variable method is applied to calculate the shape sensitivity, which is further used to construct the design velocity field. Finally, the level set method is applied to achieve shape evolution and topological changes of the microstructure until the desired materials properties like negative Poisson’s ratios are achieved.
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ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
August 2–5, 2015
Boston, Massachusetts, USA
Conference Sponsors:
- Design Engineering Division
- Computers and Information in Engineering Division
ISBN:
978-0-7918-5708-3
PROCEEDINGS PAPER
On Design of Mechanical Metamaterials Using Level-Set Based Topology Optimization
Xiao Wang,
Xiao Wang
State University of New York at Stony Brook, Stony Brook, NY
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Shikui Chen,
Shikui Chen
State University of New York at Stony Brook, Stony Brook, NY
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Lei Zuo
Lei Zuo
Virginia Polytechnic Institute and State University, Blacksburg, VA
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Xiao Wang
State University of New York at Stony Brook, Stony Brook, NY
Shikui Chen
State University of New York at Stony Brook, Stony Brook, NY
Lei Zuo
Virginia Polytechnic Institute and State University, Blacksburg, VA
Paper No:
DETC2015-47518, V02BT03A012; 8 pages
Published Online:
January 19, 2016
Citation
Wang, X, Chen, S, & Zuo, L. "On Design of Mechanical Metamaterials Using Level-Set Based Topology Optimization." Proceedings of the ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 2B: 41st Design Automation Conference. Boston, Massachusetts, USA. August 2–5, 2015. V02BT03A012. ASME. https://doi.org/10.1115/DETC2015-47518
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