Dynamic models for impact-initiated stress waves through snow columns

The objective of this research is to model snow’s response to dynamic, impact loading. Two constitutive relationships are considered: elastic and Maxwell-viscoelastic. These material models are applied to laboratory experiments consisting of 1000 individual impacts across 22 snow column configurations. The columns are 60 cm tall with a 30 cm by 30 cm cross-section. The snow ranges in density from 135-428 kg m-3 and is loaded with both short-duration (~1 ms) and long-duration (~10 ms) impacts. The Maxwell-viscoelastic model more accurately describes snow’s response because it contains a mechanism for energy dissipation, which the elastic model does not. Furthermore, the ascertained model parameters show a clear dependence on impact duration; shorter duration impacts resulted in higher wave speeds and greater damping coefficients. The stress wave’s magnitude is amplified when it hits a stiffer material because of the positive interference between incident and reflected waves. This phenome..., Collected in the Subzero Research Laboratory at Montana State University and processed with various Python and Matlab scripts., , # Dynamic models for impact-initiated stress waves through snow columns

This dataset contains supporting information for the Journal of Glaciology paper titled \"Dynamic models for impact-initiated stress waves through snow columns\" authored by S.V. Verplanck and E.E. Adams.

## Description of the data and file structure

The scripts to run the models are in two folders: \"FD Model\" and \"FE Model\". The finite difference (FD) model is scripted and executed Matlab R2023A. The finite element (FE) model is scripted in Python and executed in Abaqus 2022.

The \"FD Model\" folder contains a pdf with detailed documentation of the finite difference method implementation. This file is called \"FD_Documention.pdf\". There is also a top level matlab script titled \"runModel.m\" which calls \"wave_1D.m\".

The \"FE Model\" folder contains 12 python scripts. The filenaming convention is \"loop_\" + \"longDur\" or \"shortDur\" + \"E\" or \"VE\" + \"low\" or \"mid\" or \"high\". The permutations of this naming convention is s...