avalanche2

About this file

This is the readme file for my project hosted at danieltuzes/avalanhe2. This file is manually created by me and contains some description of this project.

About this repo

Here you can find my simulations programs and evaluation programs to analyize the data you get. I wrote these during my PhD years.

names: no avalanche1?

This project is called avalanche2, but there is no avalanche1 or avalanche, it has been removed long ago. avalanche2 is the CA model written to study dislocation avalanches under mean field approximation and avalanche3 is the CA model written to study dislocation patterns.

so many projects, folders and main files

Here you can find all the folders listed with my programs therein. Each folder contains a program for specific purposes.

1. arithmetic: to make some basic operations on block_data objects stored in files, output is stored in files.
2. avalanche2: The dislocation avalanche simulation program. It is based on the continuum model of dislocations in mean field approximation.
3. correlation_integral: to calculate the correlation integrals of the initial point of dislocation avalanches
4. gen_utils: shared code over the solution
5. shape: do calculation with the shape of the avalanches
6. statistics: calculates the
   • av_p: avalanche size distrubion for events with positive deformation value
   • av_n: avalanche size distrubion for events with negative deformation value
   • av_poz_part: avalanche size distrubion where in the size only the positive events are counted
   • av_neg_part: avalanche size distrubion where in the size only the positive events are counted
   • av_s_av: average avalanche size in each external stress intervals
   • iDG: the size of the deformation of the first ith avalanche
   • iDG_av: the sum and STD of the deformation of the first ith avalanche over different realizations; the ith line gives the property of the ith avalanche
   • ies: the external stress at the ith avalanche. The results are stored both in incremental corresponding seed_start value and both incremental external stress values
   • ies_av: the sum and STD of the deformation of the first ith avalanche over different realizations; the ith line gives the property of the ith avalanche
   • log: beside the stdout, processing info goes there too. Contains the parameters the evaluation program used, the read in files.
   • ssc_DsG: stress strain curve averaged at strain values (delta sum gamma)
   • ssc_DsGdev: standard deviation of the stress values at DsG values over different realizations
   • ssc_tau: stress strain curve averaged at external stress values
   • tau_g_sampl_DsG: statistics of the lines of tau_g files sampled at strain values
   • tau_g_sampl_tau: statistics of the lines of tau_g files sampled at external stress values

References:

1. Role of weakest links and system-size scaling in multiscale modeling of stochastic plasticity Péter Dusán Ispánovity, Dániel Tüzes, Péter Szabó, Michael Zaiser, and István Groma Phys. Rev. B 95, 054108 – Published 9 February 2017
2. D. Tüzes, M. Zaiser és P. D. Ispánovity, Disorder is good for you: The influence of local disorder on strain localization and ductility of strain softening materials, Int. J. Fract. 205, 139 (2017)