Bulletin of the American Physical Society
APS March Meeting 2024
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session N00: Poster Session II (11:30am-2:30pm CST)
11:30 AM,
Wednesday, March 6, 2024
Room: Hall BC
Sponsoring
Unit:
APS/SPS
Abstract: N00.00149 : Non-affine Dynamics of a Sheared Athermal System with Pins*
Presenter:
Abir K.M.S. Mahmud
(Bucknell University)
Authors:
Abir K.M.S. Mahmud
(Bucknell University)
Amin Danesh
(Bucknell University)
Jean Luc Ishimwe
(Swarthmore College)
Xiang Li
(Swarthmore College)
Michael J Bolish
(Bucknell University)
Cacey S Bester
(Swarthmore College)
Brian Utter
(University of California, Merced)
Amy L Graves
(Swarthmore College)
Katharina Vollmayr-Lee
(Bucknell University)
We study local non-affine dynamics of the sheared system in a steady state, primarily focusing on D2min , a per-particle metric of non-affine motion. Notably, we find that for quasi-static shearing at a constant packing fraction, the occurrences of local non-affine events tend to be concentrated closer to the pins. The probability density at a certain distance from the nearest pin for the occurrence of non-affine events is independent of pin density for short distances from the pins.
*We acknowledge the financial support from the National Science Foundation DMR-1905737 and DMR-1905474 and XSEDE/ACCESS allocations DMR-190064/PHY230003 and TRA100004.
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