MMAE Seminar - Effectiveness of Approximate Cloaks

Armour College of Engineering’s Mechanical, Materials & Aerospace Engineering Department will welcome Valentin Serey, MMAE Graduate Student, on Wednesday, August 26th to present his lecture, Effectiveness of Approximate Cloaks.

Abstract

Cloaking devices are characterized by their ability to decrease, if not completely eliminate, wave scattering due to the presence of a scatterer. An ideal cloak will theoretically lead to zero scattering but a real cloak will always be approximate, and thus lead to non-zero scattering. The scattering produced by an approximate cloak is governed by the large set of design parameters which characterizes the cloak and depends upon both spatial and temporal features. This project investigates the effects of these design parameters on the scattering field. As a specific example a multi-layered acoustic cloak is studied to investigate the effects of the cloak parameters on both the directional features of the scattering field and the total scattered field.

Biography

Valentin Serey has just received his M.Eng. Degree in Mechanical and Aerospace Engineering from the MMAE department of IIT. After completing two years in the French Engineering School ENSEIRB-MATMECA in the Mathematical Modeling and Mechanics (Matmeca) Department, he joined IIT as an exchange student for one year, allowing him to receive diplomas from both schools in 2015. As a final year project, Valentin studied acoustic cloaking under direction of Professor Srivastava. This project will be presented at today’s seminar. Valentin will continue his studies with a double Ph.D. in Mechanical Engineering, between the Material and Engineering Institute (I2M lab) of the University of Bordeaux, France and the Acoustic Group of the University of Sherbrooke (GAUS lab), Canada, focusing on ultrasonic Non-Destructive Testing (NDT) in composite materials.