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Polymer glass configurations deformed using athermal quasi-static simple shear

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posted on 2024-08-06, 23:29 authored by Amelia LiuAmelia Liu, Arabinda Bera, Matteo Baggioli, Timothy C Petersen, Timothy W. Sirk, Alessio Zaccone

The zipped folder contains the following files:

  • "information_data.pdf" that details the simulation parameters used to create and deform the polymer glass models
  • “pos.dump” – Contains the configurations for γ = 0 to γ = 0.25 with δγ = 10−3, totaling 251 configurations. These configurations are at T = 0 and represent AQS shear data.
  • • “in.KGmodel” – Parameters for our model used in LAMMPS simulations.
  • • “stress.XZ.dat” – Contains stress versus strain information in shaer plane of the system.
  • “info slice.txt” – Contains information on the number of particles in the xz (shear) slices from y = −9 to y = 9, totaling 73 slices for each γ. Each slice has a width of ∆y = 2, and the central location of the slab y is incremented by 0.25. First 200 configurations are analysed and presented in the article. There are a total of (200 × 73) = 14600 lines.
  • “xz plane/dis2d 98” – Non-affine displacement field of 2D slices at γ = 0.098 in the xz (shear) plane with a width of ∆y = 2 are provided.
  • “xz plane/xx 98” – Interpolated data for each slice from y = −9 to y = 9, totaling 73 slices (y incremented by 0.25) for γ = 0.098. This interpolation is performed using the Python library “grid data” with method=“linear” on a square grid of 80×80 in the range [−10,10] for both x and z.
  • “angle dissection/direction uniform N26.txt” – Contains the unit directions (uniformly distributed on a unit sphere) used to dissect our system.
  • “angle dissection/gamma 98/angle2d j” (j = 1, . . . , 26) – The non-affine displacement field after dissecting alongthe direction corresponding to the j-th line of the data file “direction uniform N26.txt”.
  • “angle dissection/gamma 98/info slice.txt”–The information of the number of particles within the slices.
  • “angle dissection/gamma 98/xx j” (j = 1, . . . , 26) – The grid data of the non-affine displacement field data “angle2d j” after interpolation. For this case we use the 128 × 128 grid in the range [−16, 16] for both the directions in the plane.

Funding

Shanghai Municipal Science and Technology Major Project No.2019SHZDZX01

Yangyang Development Fund

The role of structure in the formation and properties of glasses

Australian Research Council

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Solving the multi-scale problem in materials mechanics: a pathway to chemical design

European Research Council

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Gauss Professorship

US Army Research Office contract W911NF-22-2-0256

History

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