Results 11 to 20 of about 186,782 (332)

Effect of residual stress redistribution on fatigue crack growth pertinent to crack closure and applied load

open access: yesMaterials & Design, 2023
Clarifying residual stress (RS) redistribution and its effect on fatigue crack growth (FCG) is essential to evaluate the fatigue life of a welded joint.
Shuai Luan, Chunguo Zhang, Xing Zhang
doaj   +3 more sources

Closure Effect of I + II Mixed-mode Crack for EA4T Axle Steel

open access: yesChinese Journal of Mechanical Engineering
The crack-closure effect is a crucial factor that affects the crack growth rate and should be considered in simulation analysis and testing. A mixed-mode I + II loading fatigue crack growth test was performed using EA4T axle steel specimens.
Shuancheng Wang   +4 more
doaj   +3 more sources

Simulation of crack closure effect on cracked beam vibrations

open access: yesEngineering Fracture Mechanics
Vibrations of beams containing cracks are usually investigated by using open or breathing crack models. Neither one of these approaches considers the plasticity induced crack closure (PICC) phenomena which occurs in fatigue crack growth. In this study, PICC is integrated into the vibration analysis of a cracked beam.
Dağhan Günhan   +2 more
openaire   +3 more sources

Effect of compressive loads on plasticity induced crack closure [PDF]

open access: yes, 2015
Compressive stresses play an important role on tension-compression fatigue which can be attributed to plasticity induced crack closure (PICC). The objective here is to study numerically the effect of compressive stresses on PICC and to discuss the ...
Branco, R.   +5 more
core   +2 more sources

A numerical study of the effect of single overloads on plasticity induced crack closure [PDF]

open access: yes, 2017
In this work, the effect of single overloads on plasticity induced crack closure is studied. An elastic-plastic finite element model was developed and the crack opening level was calculated from the contact forces along the crack flank.
Branco, R.   +4 more
core   +2 more sources

Fatigue Life Evaluation Method for Foundry Crane Metal Structure Considering Load Dynamic Response and Crack Closure Effect

open access: yesComputer Modeling in Engineering & Sciences, 2020
: To compensate for the shortcomings of quasi-static law in anti-fatigue analysis of foundry crane metal structures, the fatigue life evaluation method of foundry crane metal structure considering load dynamic response and crack closure effect is ...
Q. Dong, Bin He, Ge-ning Xu
semanticscholar   +1 more source

A Novel Methodology for Calculating Crack Opening Stress under Tension-Compression Cyclic Load

open access: yesAdvances in Materials Science and Engineering, 2021
Crack closure model has been used in several applications on the prediction of fatigue crack growth life, with expression of crack opening stress often serving as milestones.
Lin Zhang, Xiaohui Wei
doaj   +1 more source

The effect of dwell times and minimum temperature on out-of-phase thermomechanical fatigue crack propagation in a steam turbine steel—Crack closure prediction

open access: yesInternational Journal of Fatigue, 2022
Exploring crack growth behaviour is needed to establish accurate fatigue life predictions. Cracked specimens were tested under strain-controlled out-of-phase thermomechanical fatigue conditions.
A. Azeez   +4 more
semanticscholar   +1 more source

Crack closure effect during the impact coal seam with high-pressure air blasting and the influence of gas drainage efficiency

open access: yesFrontiers in Earth Science, 2023
The crack closure in impact coal seams induced by high-pressure air blasting greatly affects gas drainage efficiency. The length of the crack closure was calculated and analyzed based on energy and elastic theories. The closure region was then determined
Weihua Song   +3 more
doaj   +1 more source

Fatigue Crack Growth from Notches: A Numerical Analysis

open access: yesApplied Sciences, 2020
A numerical approach based on plastic crack tip opening displacement (CTOD) was followed to study fatigue crack growth (FCG) from notches. The identification of fundamental mechanisms was made considering notched and unnotched models, with and without ...
Micael Borges   +4 more
doaj   +1 more source

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