We are very happy to have had you here and we wish you all the best on your way back home.
p.s. that is a sharp tie!
Mathieu with his red power tie!
Congratulations to Mathieu Vandaele, our visiting scholar from ICAM de Lille, who gave his final defense/talk today. His work titled "Testing and Characterization of a Piezoelectric Hair Cells " produced some interesting results in order further our understanding of piezo-based hair cells and how they relate to their biological counterpart. His work, coauthored with Bryan Joyce, will be presented at the ASME SMASIS conference in September entitled "Design and characterization of piezo-based stereocilia". We are very happy to have had you here and we wish you all the best on your way back home. p.s. that is a sharp tie! The Virginia Tech/Univ. of Akron Center for Tire Research, CenTire, will fund VAST on a project titled "Towards a self-powered structural health-monitoring smart tire". The Center for Tire Research (CENTIRE) is a multi-university cooperative research center among Virginia Tech (VT) and The University of Akron (Akron). It is part of the NSF Industry/University Cooperative Research Centers Program. It is jointly supported by industry and the National Science Foundation (NSF). We would like to welcome all our undergraduate students doing research at our lab this summer. We are very excited to have you here and we hope that this will be a good experience for you! Our new students are:
Project description coming soon to the members website Carlos Garcia, our visiting scholar from UNSL Argentina, presented his work at VAST back in his home university. He project was approved and he graduated successfully! Good job Carlos. Congratulations to Bryan Joyce for his new journal publication: Joyce, B.S., Farmer, J., and Inman, D.J., 2013. “Electromagnetic energy harvester for monitoring wind turbine blades,” Wind Energy. Link Sriram Malladi defended (and passed) his Master of Science from Virginia Tech entitled "Development and Design of Self-Sensing S.M.As using Thermoelectric Effect" Abstract: Active research of SMAs has shown that its Seebeck coefficient is sensitive to its martensitic phase transformation and has the potential to determine the SMAs state of transformation. The combination of Shape Memory Alloys, which have a positive Seebeck coefficient, and Constantan which has a negative Seebeck coefficient (-35 mV/K) results in a thermocouple capable of measuring temperature. The work presented in this thesis is based on the development and design of this sensor. This sensor is used to study the hysteretic behavior of SMAs. Although Shape Memory Alloys (SMAs) exhibit a myriad of nonlinearities, SMAs show two major types of nonlinear hysteresis. During cyclic loading of the SMAs, it is observed that one type of hysteretic behavior depends on the rate of heating the SMAs, whilst the variation of maximum temperature of an SMA in each cycle results in the other hysteretic behavior. This later hysteretic behavior gives rise to major and minor nonlinear loops of SMAs. The present work analyzes the nonlinearities of hysteretic envelopes which gives the different maximum temperatures reached for each hysteretic cycle with respect to stress and strain of the SMA. This work then models this behavior using Adaptive Neuro Fuzzy Inference System (ANFIS) and compares it to experimental results. The nonlinear learning and adaptation of ANFIS architecture makes it suitable to model the temperature path hysteresis of SMAs. For those interested his thesis should be available at http://etd.vt.edu in a couple of weeks. We are fortunate to have Mr. Malladi continue to his PhD with us. Way to go Sriram! VPWave, a Senior Design team of VAST Lab, wins the "BEST in INNOVATION and CREATIVITY" award!5/6/2013
VPWave composed of Jacob Aber, Jordan Mullins, Nick Meligari and Edan Fletcher received the award for "Best Creativity" for their project titled: "Vehicle propulsion by traveling waves". Videos of their work will be coming soon. For now we have a small slide show of their work below. The project was supervised by Bryan Joyce. Our visitors at DREAM Lab getting a tour of the ME Department. Prof. Valder Steffen from the mechanical engineering department at Uberlândia with his colleagues visit Virginia Tech. Among the labs visited was CIMSS, VAST and the DREAMS lab headed by Dr. Williams. The team presented two papers at the 54th SDM conference in Boston MA. They were:
You can download the papers below. Note: After the 54th conference, SDM will be part of SciTech 2014 and no longer a stand alone conference.
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January 2024
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