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Conferences, Lectures, & Seminars
Events for November
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CEE Ph.D. Seminar
Fri, Nov 01, 2013 @ 04:00 PM - 05:00 PM
Sonny Astani Department of Civil and Environmental Engineering
Conferences, Lectures, & Seminars
Speaker: Dongbin Wang and Thang Le, CEE Ph.D. Candidates
Talk Title: OUT-OF-PLANE (SH) SOIL-STRUCTURE INTERACTION SEMI-CIRCULAR FLEXIBLE RIGID FOUNDATION
Abstract: Presentation by: Thang Le
The model studied presents a logical extension of the shear wall with circular rigid foundation fixed firmly in an isotropic homogeneous and elastic half-space considered only for vertical-incidence SH waves by J.E. Luco (1969) and then formulated to any angle of the incidence SH waves by M.D Trifunac (1972). A new approach and model is developed to solve for rigid foundation using big arc approximation which can be extended to solve for flexible or semi-rigid foundation. The analytical expression of the soil-structure interaction of a tapered shear wall (structure) and an isotropic homogeneous and elastic half-space is obtained. Results of the numerical analysis are then compared with Trifunac (1972).
4:00PM - 4:20PM (10 minutes for questions) - Dongbin Wang 4:30PM - 4:50PM (10 minutes for questions) - Thang Le
Location: John Stauffer Science Lecture Hall (SLH) - 102
Audiences: Everyone Is Invited
Contact: Evangeline Reyes
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Astani CEE Ph.D. Seminar
Fri, Nov 08, 2013 @ 04:00 PM - 05:00 PM
Sonny Astani Department of Civil and Environmental Engineering
Conferences, Lectures, & Seminars
Speaker: Sina Hasheminassab and Zheng Yang, CEE Ph.D Students
Talk Title: Astani CEE Ph.D. Presentations
Abstract: TBA
Location: John Stauffer Science Lecture Hall (SLH) - 102
Audiences: Everyone Is Invited
Contact: Evangeline Reyes
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Astani CEE Ph.D. Seminar
Fri, Nov 15, 2013 @ 04:00 PM - 05:00 PM
Sonny Astani Department of Civil and Environmental Engineering
Conferences, Lectures, & Seminars
Speaker: Dr. Nizar Lajnef, Department of Civil Engineering, Michigan State University
Talk Title: Piezoelectric Driven Floating-Gate Sensors for Long-term Structural Usage Monitoring
Abstract:
A major step toward achieving an effective structural health and usage monitoring system is to enable autonomous sensing, reliable events identification and classification, and self-adaptive capabilities in structural components. This introduces novel design methodologies and forces a rethinking of the definition of multifunctional structures beyond the classical concept based only on load bearing elements. The main obstacle hindering such developments remains the availability of a reliable and continuous source of power. Energy harvesting from ambient signals is presented as a potential solution. In addition, many events of interest in structural engineering occur at frequencies significantly lower than one Hertz. This poses a significant challenge for developing self-powered sensors that are required not only to monitor rare infrasonic events but also to harvest the energy for sensing, computation and storage from the signals being monitored.
The objective of this talk is to present an overview of on-going work aimed at the development of novel self-powered sensing systems that can be applied toward the long-term monitoring of structural components. The novel modules are based on the integration of piezoelectric transducers and mechanically equivalent frequency modulators and energy concentrators, with an array of ultra-low power floating gate computational circuits. The miniaturized battery-less wireless sensors will be capable of detecting and recording a compressed version of the strain, acceleration, and spectral response history of the monitored structure. Associated data interpretation and damage prediction techniques, based on the strain data, are also discussed.
Host: Prof. Sami Masri
Location: John Stauffer Science Lecture Hall (SLH) - 102
Audiences: Everyone Is Invited
Contact: Evangeline Reyes
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Astani CEE Ph.D. Seminar
Fri, Nov 22, 2013 @ 04:00 PM - 05:00 PM
Sonny Astani Department of Civil and Environmental Engineering
Conferences, Lectures, & Seminars
Speaker: Dr. Berok Khoshnevis, Epstein Department of Industrial and Systems Engineering
Talk Title: Automated Construction by Contour Crafting
Location: John Stauffer Science Lecture Hall (SLH) - 102
Audiences: Everyone Is Invited
Contact: Evangeline Reyes