Engineering Physics Colloquium
Tuesday, December 10
4:00 PM to 5:00 PM
106 Engineering Research Building
Speaker: Dr. Nathan Salowitz, Stanford University
"Microfabricated Expandable Sensor Networks for Intelligent Structures"
Abstract: Recently there has been significant interest in intelligent materials and structures for feedback control of autonomous aerospace systems and robotics. Many challenges exist in creating and deploying the sensors and systems to create intelligent structures without substantial parasitic side effects. Micro-fabricated expandable sensor networks address many of the issues. These networks leverage nonstandard C-MOS micro and nano-fabrication techniques, like those used to create billions of transistors on a microchip, to mass fabricate integrated networks of micro-small scale sensors and then deploy them over areas on the order of square meters. The small scale of the components creates the potential to integrate them into structures in bond lines, replacing scrims, or between lamina in a composite material. The scales, techniques, and materials used to create these networks present many challenges and opportunities in system design and fabrication. This seminar will review several of the sensors and systems that have been created on stretchable networks, fabrication challenges, and new designs for more efficient devices.
Biography: Nathan Picchietti Salowitz received the B.S. degree in Engineering Mechanics from The University of Wisconsin - Madison and the M.S. and Ph.D. degrees in Aeronautics and Astronautics from Stanford University, Stanford, CA. After earning the B.S. degree he worked as a Structural Analyst with Boeing for several years before pursuing graduate studies. Since receiving his Ph.D. he has been an Engineering Research Associate in the Structures and Composites Laboratory at Stanford University. His current research is focused on micro and nano scale sensor and actuator networks, including MEMS and NEMS, built on polymeric expandable substrates for structural health monitoring and intelligent structures. His past research has addressed failure mechanisms, damage detection, and structural health monitoring in composite and advanced fiber metal laminate materials.