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Proceedings Papers

Investigation of Cyclic and Frequency Nanoindentation Effects in Polydimethylsiloxane

Hinal Patel, Chen Yang, Howon Lee, Assimina A. Pelegri
Proc. ASME. IMECE2019, Volume 9: Mechanics of Solids, Structures, and Fluids, V009T11A031, November 11–14, 2019
Paper No: IMECE2019-12187
DOI: https://doi.org/10.1115/IMECE2019-12187
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Topics: Cycles, Nanoindentation, Plasma desorption mass spectrometry
Proceedings Papers

Lightweight Microlattice With Tunable Mechanical Properties Using 3D Printed Shape Memory Polymer

Chen Yang, Manish Boorugu, Andrew Dopp, Howon Lee
Proc. ASME. MSEC2018, Volume 1: Additive Manufacturing; Bio and Sustainable Manufacturing, V001T01A028, June 18–22, 2018
Paper No: MSEC2018-6562
DOI: https://doi.org/10.1115/MSEC2018-6562
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Topics: Additive manufacturing, Mechanical properties, Shape memory polymers, Metamaterials, Shapes, Deformation, Stiffness, Stress, Temperature, Density
Proceedings Papers

Projection Micro-Stereolithography of Temperature Responsive Mechanically Tough Hydrogels

Daehoon Han, Zhaocheng Lu, Howon Lee
Proc. ASME. MSEC2016, Volume 1: Processing, V001T02A073, June 27–July 1, 2016
Paper No: MSEC2016-8667
DOI: https://doi.org/10.1115/MSEC2016-8667
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Topics: Fracture toughness, Hydrogels, Stereolithography, Temperature, Additive manufacturing, Mechanical properties, Microfabrication, Phase transition temperature, Resolution (Optics)
Journal Articles

Polytope Sector-Based Synthesis and Analysis of Microstructural Architectures With Tunable Thermal Conductivity and Expansion

Jonathan B. Hopkins, Yuanping Song, Howon Lee, Nicholas X. Fang, Christopher M. Spadaccini
Journal: Journal of Mechanical Design
Article Type: Research-Article
J. Mech. Des. May 2016, 138(5): 051401.
Paper No: MD-15-1227
DOI: https://doi.org/10.1115/1.4032809
Published Online: March 11, 2016
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Topics: Architecture, Temperature, Thermal conductivity, Thermal expansion, Design, Finite element analysis, Topology
Proceedings Papers

Polytope Sector-Based Synthesis and Analysis of Microarchitectured Materials With Tunable Thermal Conductivity and Expansion

Jonathan B. Hopkins, Howon Lee, Nicholas X. Fang, Christopher M. Spadaccini
Proc. ASME. IDETC-CIE2015, Volume 2B: 41st Design Automation Conference, V02BT03A006, August 2–5, 2015
Paper No: DETC2015-46645
DOI: https://doi.org/10.1115/DETC2015-46645
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Topics: Thermal conductivity, Architecture, Thermal expansion, Analytical methods, Design
Proceedings Papers

Design, Development and Evaluation of a Two Way Actuated Steerable Needle

Bardia Konh, Harold H. Lee, Vincent P. Martin, Vincent Zhao, Daehoon Han, Howon Lee, Parsaoran Hutapea
Proc. ASME. SMASIS2015, Volume 2: Integrated System Design and Implementation; Structural Health Monitoring; Bioinspired Smart Materials and Systems; Energy Harvesting, V002T04A022, September 21–23, 2015
Paper No: SMASIS2015-9084
DOI: https://doi.org/10.1115/SMASIS2015-9084
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Topics: Design, Needles, Surgery, Deflection, Deformation, Glass transition, Heating, Shape memory alloys, Shape memory polymers, Temperature
Proceedings Papers

Biomimetic Microactuator Powered by Polymer Swelling

Howon Lee, Chunguang Xia, Nicholas Xuanlai Fang
Proc. ASME. IMECE2008, Volume 13: Nano-Manufacturing Technology; and Micro and Nano Systems, Parts A and B, 765-769, October 31–November 6, 2008
Paper No: IMECE2008-67594
DOI: https://doi.org/10.1115/IMECE2008-67594
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Topics: Biomimetics, Microactuators, Polymers, Actuators, Absorption, Microfabrication, Microfluidics, Pressure, Relaxation (Physics), Stereolithography
Proceedings Papers

3D Polymeric Devices Driven by Surface Micro Fluidic Capillaries

Chunguang Xia, Howon Lee, Nicholas X. Fang
Proc. ASME. MICRONANO2008, 2008 Second International Conference on Integration and Commercialization of Micro and Nanosystems, 135-136, June 3–5, 2008
Paper No: MicroNano2008-70115
DOI: https://doi.org/10.1115/MicroNano2008-70115
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Topics: Cantilevers, Evaporation, Microfabrication, Polymers, Water