Events

May 10

PHYS 123 Speaker Jill Bingham

PHYS 123 Speaker Jill Bingham

Friday, May 10th, 2013
3:30 – 4:30 pm / Olin 141

Physics 123
(Approx. First Half of Term)    Fridays 3:30-4:30 (6a)
What Physicists Do
Spring 2013
Olin 141    1 Credit; S/CR/NC

The Department of Physics and Astronomy is pleased to present “Physics 123: What Physicists Do”.  This is our annual series of five lectures by guest speakers, many of whom are Carleton alums.  The series is intended to introduce students to a broad range of real-world physics and to give some perspective on the kinds of work done by people with a physics background.  Speakers will be available for informal discussions over refreshments afterward.    Questions: Jay Tasson, Olin 337, x4418, jtasson@carleton.edu.


The speaker for May 3rd will be Jill Bingham '04.

"Ultrasonic Wave Propagation:  Modeling and Use in Nondestructive Evaluation of Aircraft Parts"

Nondestructive Evaluation (NDE) is the inspection of a structure for manufacturing defects or flaws that develop over time that is done without harming the structure.  One technique widely used in the field, ultrasound, has wavelengths on the order of the structures in question.  As ultrasonic waves propagate through a structure, they interact with defects and interfaces via transmission and reflection.  We use this interaction to gain insight into the quality of the part.  This talk will concentrate on how we use wave propagation to understand structure properties using simple techniques like through transmission and pulse echo as well as more complicated wave modes like Lamb waves.  The finite integration modeling technique allows us to visualize the propagation of elastic waves through materials and shapes for further understanding of the complex modes.  Different material systems and geometries have different limitations and structure requirements leading to the need for a wide range of approaches.  Aerospace designs and structures continue to push the need for new NDE techniques and solutions.  

 

Jill will be available for an informal discussion over refreshments in the Olin 2nd floor lounge following her talk.  

 

 

Sponsored by Physics and Astronomy. Contact: Trenne Fields, x4383