DOI: 10.5281/zenodo.4864956
title: Designing highly deformable paperboard for 3D forming applications: a micro-mechanical approach : Processed data and model

description: <strong>Processed data for Designing highly deformable paperboard for 3D forming applications: a micro-mechanical approach</strong> <strong>C. Ceccato, A. Brandberg, A. Kulachenko, C. Barbier, In preparation.</strong> This repository contains the necessary data to reproduce the results of the manuscript. <strong>Code</strong> There are two scripts, <strong>generateFigure15_16_17.m</strong> and <strong>generateFigure19.m</strong>, with hopefully self-explanatory names. There is also a helper function, which imports the saved results. Missing from the repository is the visualization scripts, provided by the GRAMM project which can be found here: https://github.com/piermorel/gramm The code worked with commit b0fc59245c17d6fbcd86a105d893aeb745fb51e2 The scripts check whether GRAMM is present before running, and it is highly recommended to download it and put it in the working directory. The scripts used to generate the model, although not the exact version presented here, can be found at https://github.com/abrandberg/ShellFiberExpanda <strong>Data</strong> The data comes in a set of .MAT files, saved in version -v7.3 using MATLAB 2020a. The data necessary to generate figure 15, 16 and 17 is located in the folder named <strong>dataForFigure15_16_17</strong> while the data necessary to generate figure 19 is located in the folder named <strong>dataForFigure19</strong>. Note that the "reference" folder in <strong>dataForFigure19</strong> contains the same information as <strong>dataForFigure15_16_17</strong>, and is provided only as a convenience. The .MAT files contain different outputs: - asciiResults.mat Contains files output as ASCII or saved in the BINOUT file in LSDyna. Mostly nodal displacements of select nodes, energy measurements. - elementConnectivity.mat Contains the element connectivity of the model. - elementVolume.mat Contains the volume of each element, calculated by LSDyna during the solution process and used to weigh the effective plastic strain. - epsCollectionComplete.mat Contains the effective plastic strain of each integration point at each time step in the model. - geoResultsComplete.mat Contains condensed information derived from the nodal coordinates, e.g. fiber width and fiber length, for each time step. - nodalCollectionComplete.mat Contains the nodal coordinates of every node at every time step. The main reason these files are saved like this is the large size of the model, and associated time of loading and unloading data when generating the results. <strong>Visualization data</strong> Figure 10, 11, 12, 13, 18 consist of renders from the model. Visualization is easiest in the program LsPrePost, which can be downloaded for free at https://ftp.lstc.com/anonymous/outgoing/lsprepost/. We worked using version 4.7. - Figure 10 can be viewed by simply opening the first d3plot and looking at the model. - Figure 11 can be viewed by first setting the fringes to "static" with a range of 0-0.25, and then plotting the quantity "effective plastic strain". - Figure 18 can be viewed by going to the last time step and simply viewing the state of the sheet from the side with the solid bodies unselected. Figure 12 and 13 are fibers in the network. We apologize profusely for having lost the fiber reference number to directly isolate them. However, by virtue of the argument, any fiber aligned in the direction of compaction, and orthogonally to the same, respectively, should serve to make the argument made in Figure 12 and 13.
description: Funding: The financial support of Treesearch/Vinnova [grant number 2017-05410] and BillerudKorsnäs AB is greatly acknowledged. The computations were enabled by resources provided by the Swedish National Infrastructure for Computing (SNIC) at Umeå University partially funded by the Swedish Research Council [grant agreement no. 2018/3-212, 2019/3-260 and 2020/05-428].