Transient problem for semi-infinite crack in periodically voided materials

Transient problem for semi-infinite crack in periodically voided materials A method, which has been recently established for the modeling of long (semi-infinite) cracks embedded in materials with periodic microstructure, is implemented to determine the initial static and dynamic field in materials in which square voids are distributed in a doubly periodic manner. The method is based on the utilization of the K-field of the homogeneous orthotropic material that effectively represents the voided material far away from the crack. The Mode I field distribution is determined by solving the governing equations and boundary conditions, in conjunction with the discrete Fourier transform. The occurrence of the overshooting phenomenon is investigated for various values of the parent solid material volume fraction and the possibility of a stable crack propagation is determined. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Engineering Fracture Mechanics Elsevier

Transient problem for semi-infinite crack in periodically voided materials

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Publisher
Elsevier
Copyright
Copyright © 2016 Elsevier Ltd
ISSN
0013-7944
eISSN
1873-7315
D.O.I.
10.1016/j.engfracmech.2016.05.001
Publisher site
See Article on Publisher Site

Abstract

A method, which has been recently established for the modeling of long (semi-infinite) cracks embedded in materials with periodic microstructure, is implemented to determine the initial static and dynamic field in materials in which square voids are distributed in a doubly periodic manner. The method is based on the utilization of the K-field of the homogeneous orthotropic material that effectively represents the voided material far away from the crack. The Mode I field distribution is determined by solving the governing equations and boundary conditions, in conjunction with the discrete Fourier transform. The occurrence of the overshooting phenomenon is investigated for various values of the parent solid material volume fraction and the possibility of a stable crack propagation is determined.

Journal

Engineering Fracture MechanicsElsevier

Published: Aug 1, 2016

References

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