Open AccessAutomatic prediction of the fatigue crack trajectory in plane finite element models
Author(s) -
Ekaterina A. Matrosova,
V. V. Sergienko,
G. P. Egorov,
D. A. Sadikov
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/747/1/012024
Subject(s) - finite element method , fracture mechanics , stress intensity factor , structural engineering , trajectory , plane (geometry) , strain energy density function , software package , software , stress (linguistics) , fracture (geology) , mechanics , engineering , materials science , computer science , mathematics , physics , geometry , composite material , linguistics , philosophy , astronomy , programming language
A module for automatic prediction of the fatigue crack trajectory in plane finite-element models in Ansys APDL software package was developed. Crack propagation is modeled by exclusion of elements from the active set in the direction, which is determined based on criterion of the maximum energy flux to the crack tip. The module determines the parameters of fracture mechanics (stress intensity factor and J-integral) at each step of crack propagation.