Dr. Ji Su
Research Scientist at NASA Langley Research Ctr
SPIE Involvement:
Conference Program Committee | Author | Instructor
Publications (21)

Proceedings Article | 10 May 2024 Presentation
Alexandrea Washington, Ji Su, Kwang Kim
Proceedings Volume PC12945, PC129450F (2024) https://doi.org/10.1117/12.3008574
KEYWORDS: Dielectric elastomer actuators, Electroactive polymers, Robotics, Liquids, Dielectrics, Dielectric breakdown

Proceedings Article | 22 March 2021 Poster + Presentation + Paper
Proceedings Volume 11587, 1158725 (2021) https://doi.org/10.1117/12.2587907
KEYWORDS: Polymers, Crystals, Electromechanical design, In vitro testing, Homogenization, Ferroelectric polymers, Data modeling, Computer simulations, Chemical elements

Proceedings Article | 22 March 2021 Presentation
Alexandrea Washington, Zakai Olsen, Taeseon Hwang, Ji Su, Kwang Jin Kim
Proceedings Volume 11587, 1158706 (2021) https://doi.org/10.1117/12.2584152
KEYWORDS: Actuators, Robotic systems, Modeling, Electroactive polymers, Robotics, Systems modeling, Smart materials, Microsystems, Electromagnetism, Dielectrics

Proceedings Article | 20 April 2016 Open Access Paper
H. Asanuma, J. Su, M. Shahinpoor, F. Felli, A. Paolozzi, M. Nejhad, L. Hihara, S. Aimmanee, Y. Furuya, K. Adachi, T. Yanaseko
Proceedings Volume 9803, 980302 (2016) https://doi.org/10.1117/12.2222153
KEYWORDS: Smart structures, Smart materials, Mechanical engineering, Energy harvesting, Aluminum, Aerospace engineering, Earthquakes, Corrosion, Polymers, Floods

Proceedings Article | 16 April 2014 Open Access Paper
Amanda Tiano, Cheol Park, Joseph Lee, Hoa Luong, Luke Gibbons, Sang-Hyon Chu, Samantha Applin, Peter Gnoffo, Sharon Lowther, Hyun Jung Kim, Paul Danehy, Jennifer Inman, Stephen Jones, Jin Ho Kang, Godfrey Sauti, Sheila Thibeault, Vesselin Yamakov, Kristopher Wise, Ji Su, Catharine Fay
Proceedings Volume 9060, 906006 (2014) https://doi.org/10.1117/12.2045396
KEYWORDS: Boron, Composites, Nitrogen, Polymers, Carbon, Nanoparticles, Transmission electron microscopy, Hydrogen, Crystals, Diagnostics

Showing 5 of 21 publications
Conference Committee Involvement (25)
Electroactive Polymer Actuators, Sensors, and Devices (EAPAD) 2025
17 March 2025 | Vancouver, Canada
Electroactive Polymer Actuators and Devices (EAPAD) XXVI
25 March 2024 | Long Beach, California, United States
Electroactive Polymer Actuators and Devices (EAPAD) XXV
13 March 2023 | Long Beach, California, United States
Electroactive Polymer Actuators and Devices (EAPAD) XXIV
7 March 2022 | Long Beach, California, United States
Electroactive Polymer Actuators and Devices (EAPAD) XXIII
8 March 2021 | Online Only, California, United States
Showing 5 of 25 Conference Committees
Course Instructor
SC634: Electroactive Polymer Actuators and Devices
This course will provide an overview of the field of EAP covering the state of the art, challenges and potential. Three general classes of polymer materials are described, namely those that involve ionic mechanisms (Ionic EAP including gels), field activated materials (Electronic EAP) and torsional actuators (typically thermally or electrothermally driven). The basic mechanisms responsible for the active behavior of EAP materials will be covered and compared with natural muscles. Analytical models, fabrication processes and methods of characterizing these materials will be described. Moreover, the currently considered applications will be reviewed including actuators, robotics, animatronics, energy harvesting, medical, and biologically inspired mechanisms, so called biomimetics. The course begins with an overview of the field, current capabilities, potential and challenges. The course follows with a description of the currently available EAP materials and principles of operating them as actuators and artificial muscles. The course ends with a review of the future prospect of EAP as actuators and sensors in systems, mechanisms and smart structures for industrial and medical applications.
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