Open AccessStudying the influence of numerical simulation parameters on the solutions of boundary value problems on the destruction of bodies with crack-like defects
Author(s) -
E. V. Feklistova,
M. P. Tretyakov,
V. E. Wildemann
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/747/1/012110
Subject(s) - weibull distribution , fracture (geology) , deformation (meteorology) , computer simulation , boundary value problem , displacement (psychology) , mechanics , work (physics) , diagram , materials science , structural engineering , mathematics , mathematical analysis , physics , composite material , engineering , thermodynamics , statistics , psychology , psychotherapist
The work is devoted to the study of damage accumulation processes in solving problems on the fracture of bodies with crack-like defects. Scientific publications in the field of studying the influence of various parameters on the results of numerical simulation are considered. The boundary-value problem of the deformation and fracture process is determined, the degradation algorithm is written taking into account the staging and the dispersion of the strength properties of finite elements over the three-parameter Weibull distribution. The results of numerical simulation are presented in the form of a calculated diagram of deformation in the axes “force - displacement” and patterns of the fracture area, patterns of development of defects. The influence of the stochastic nature of the strength properties of the material on the fracture process is shown.