About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Dynamic Behavior of Materials IX
|
Presentation Title |
NOW ON-DEMAND ONLY - Modified Reflective Digital Gradient Sensing (R-DGS) for Impact Applications |
Author(s) |
Pinkesh Malhotra, Chengyun Miao, Justin Moreno, Matt Shaeffer, Kaliat T Ramesh |
On-Site Speaker (Planned) |
Kaliat T Ramesh |
Abstract Scope |
A modified Reflective Digital Gradient Sensing (R-DGS) method is used for the first time to measure rear surface displacements of plates subjected to spherical projectile impact. R-DGS offers a unique capability to measure full-field out-of-plane displacements with a sensitivity <0.1 um which makes it very valuable for dynamic applications involving small out-of-plane displacements. The method was employed for one such application, i.e., the study of brittle ceramics such as Boron Carbide which are hard to study using conventional full-field measurement techniques such as Digital Image Correlation. R-DGS enabled the measurement of material response prior to fragmentation and the measurement of surface transients at the same time. A rich dataset results from such measurements which can be utilized to calibrate material models for Boron Carbide and study the kinematics associated with spherical impact. |
Proceedings Inclusion? |
Planned: |
Keywords |
Ceramics, Mechanical Properties, Other |