Event Scheduled for Aug 3, 2018
Event: MSE PhD Dissertation Defense - Keith Dusoe
Time: 10:00 am
Details of Event:
PhD Dissertation Defense
Presenter: Keith Dusoe
Major Advisor: Dr. Seok-Woo Lee
Associate Advisors: Dr. George Rossetti, Dr. Avinash Dongare, Dr. Puxian Gao, Dr. Ying Li
Date: Friday, August 3, 2018
Title: In-situ Micromechanical Characterization of Materials with High Mechanical Potential Energy Absorption Capacity
The storage, and subsequent release, of mechanical potential energy during the deformation of a material is an important phenomenon that allows for the working principles of engineered spring devices to be realized. The recovery of the released mechanical potential energy stored as atomic configurational changes can be utilized and harnessed to perform work on an element in the surrounding environment. This interplay between storage and release of mechanical potential energy in materials plays important roles not only in the engineering of advanced “spring” devices such as sporting equipment and resonators in microelectromechanical systems (MEMS) devices but also in the fast and high-powered locomotion of many animals.
Modulus of resilience is the measure of a material’s ability to store and release elastic strain energy prior to plastic yielding and is highly dependent upon the strength and the Young’s modulus of a material. In general, designing a material with enhanced modulus of resilience by materials engineering is not straightforward. Therefore, it is necessary to consider and develop a novel fabrication method in which a material with high mechanical strength and a compliant Young’s modulus can be realized. In this work, methods to enhance the modulus of resilience in polymer nanocomposites and intermetallic compounds are presented.
Target Audience: Not Available
Sponsored By: Materials Science and Engineering Program
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