Physically short fatigue crack growth from notch described by plasticity-corrected stress intensity factor
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Mechanical Sciences"
DOI: 10.1016/j.ijmecsci.2020.105544
Abstract: Abstract When a physically short fatigue crack propagates from a notch root, the crack growth rate shows a “V-shaped” behavior; i.e., the rate firstly decreases and then increases as the crack propagates. In this study,… read more here.
Keywords: fatigue crack; intensity factor; plastic zone; stress intensity ... See more keywords
Plastic zone evolution during fatigue crack growth: Digital image correlation coupled with finite elements method
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Solids and Structures"
DOI: 10.1016/j.ijsolstr.2019.04.032
Abstract: Abstract Nonlinearities effects at the crack tip, due to the elastic-plastic material behavior, impact the crack growth rate and path. This paper is devoted to the study of the plastic zone evolution in the crack… read more here.
Keywords: crack; crack growth; plastic zone; evolution ... See more keywords
Theoretical model of the plastic zone at the I-mode crack tip in dentin
Sign Up to like & getrecommendations! Published in 2017 at "Scripta Materialia"
DOI: 10.1016/j.scriptamat.2017.02.007
Abstract: Abstract Possible mechanisms of inelastic deformation at the I-mode crack tip in dentin are theoretically studied. We consider the relative shear of collagen fibers in their nodes without breaking intermolecular bonds, the detachment of collagen… read more here.
Keywords: tip dentin; plastic zone; crack tip; mode crack ... See more keywords
Notch tip plastic zone determination by extending Irwin’s model
Sign Up to like & getrecommendations! Published in 2020 at "Theoretical and Applied Fracture Mechanics"
DOI: 10.1016/j.tafmec.2020.102643
Abstract: Abstract With the aid of some explicit formulas of the elastic stress fields at the neighborhood of U- and blunt V-shaped notches and also using the Tresca and Von-Mises yield criteria, the plastic zone size… read more here.
Keywords: plastic zone; zone; extending irwin; irwin model ... See more keywords
New algorithm for optimised fitting of DIC data to crack tip plastic zone using the CJP model
Sign Up to like & getrecommendations! Published in 2021 at "Theoretical and Applied Fracture Mechanics"
DOI: 10.1016/j.tafmec.2021.102950
Abstract: Abstract The work presented in this paper provides guidance in optimally determining the appropriate fitting region used in digital image correlation (DIC) when fitting a crack tip field model to DIC data. In this work,… read more here.
Keywords: crack; crack tip; model; plastic zone ... See more keywords
Numerical Modeling of Fracture Height Propagation in Multilayer Formations Considering the Plastic Zone and Induced Stress
Sign Up to like & getrecommendations! Published in 2022 at "ACS Omega"
DOI: 10.1021/acsomega.2c01131
Abstract: Hydraulic fracturing and acid fracturing are very effective stimulation technologies and are widely used in unconventional reservoir development. Fracture height, as an essential parameter to describe the geometric size of a fracture, is not only… read more here.
Keywords: fracture; growth; plastic zone; fracture height ... See more keywords
Deformation and Failure Mechanism of Surrounding Rock in Mining-Influenced Roadway and the Control Technology
Sign Up to like & getrecommendations! Published in 2021 at "Shock and Vibration"
DOI: 10.1155/2021/5588314
Abstract: Aiming at the problem of surrounding rock deformation and failure of mining roadway and its control, a mechanical model of the circular roadway under the mining environment is established, and the implicit equation of the… read more here.
Keywords: mining; plastic zone; roadway; surrounding rock ... See more keywords
The Plastic Zone of Tunnel Surrounding Rock under Unequal Stress in Two Directions Based on the Unified Strength Theory
Sign Up to like & getrecommendations! Published in 2021 at "Mathematical Problems in Engineering"
DOI: 10.1155/2021/8842153
Abstract: For the deficiencies that the existing calculation theory for the Plastic Zone of Tunnel Surrounding Rock (PZTSR) does not consider the effect of the intermediate principal stress σ2 and interaction between the surrounding rock and… read more here.
Keywords: theory; plastic zone; surrounding rock; stress ... See more keywords
Elastic-plastic analysis of circular tunnel based on unified strength theory and considering multiple plastic zones
Sign Up to like & getrecommendations! Published in 2023 at "Advances in Mechanical Engineering"
DOI: 10.1177/16878132221146392
Abstract: Considering that the internal friction angle of the surrounding rock is not a constant but a function of the mean normal stress, and the unified strength theory (UST) is used as the plastic condition of… read more here.
Keywords: plastic zone; plastic; zone; criterion ... See more keywords
Shapes and formation mechanism of the plastic zone surrounding circular roadway under partial confining stress in deep mining
Sign Up to like & getrecommendations! Published in 2021 at "Geomechanics and Engineering"
DOI: 10.12989/gae.2021.25.6.509
Abstract: To reveal the failure mechanism of roadway surrounding rock under the partial confining stress in deep mining, by means of theoretical analysis and numerical simulation, this paper studied the distribution laws of the principal stress… read more here.
Keywords: confining stress; roadway; plastic zone; rock ... See more keywords
Construction Method of Honeycomb Gas Flow Network Channel: Structure-Based and Engineering Response on Plastic Zone Distribution Form
Sign Up to like & getrecommendations! Published in 2023 at "Applied Sciences"
DOI: 10.3390/app13106096
Abstract: The plastic zone of the surrounding rock of the borehole is a high-quality channel for gas flow. Studying the distribution form of the plastic zone in the surrounding rock of the boreholes and the characteristics… read more here.
Keywords: gas; plastic zone; plastic; gas flow ... See more keywords