Results 1 to 10 of about 31,900 (281)

Crack tip strain evolution and crack closure during overload of a growing fatigue crack [PDF]

open access: yesFracture and Structural Integrity, 2017
It is generally accepted that fatigue crack growth is retarded after an overload, which has been explained either by plasticity-induced crack closure or near-tip residual stress.
De-Qiang Wang   +3 more
doaj   +6 more sources

Evaluation of Crack Propagation and Post-cracking Hinge-type Behavior in the Flexural Response of Steel Fiber Reinforced Concrete [PDF]

open access: yesInternational Journal of Concrete Structures and Materials, 2017
An experimental evaluation of crack propagation and post-cracking behavior in steel fiber reinforced concrete (SFRC) beams, using full-field displacements obtained from the digital image correlation technique is presented.
Sahith Gali, Kolluru V. L. Subramaniam
doaj   +3 more sources

Novel Characterizations of Effective SIFs and Fatigue Crack Propagation Rate of Welded Rail Steel Using DIC

open access: yesMetals, 2023
The fatigue crack growth-rate test of rail head, waist, and bottom material for U71Mn welded rail was carried out. Digital image correlation (DIC) was used to capture the full-field displacement.
Xiu-Yang Fang   +4 more
doaj   +1 more source

A numerical study of non-linear crack tip parameters [PDF]

open access: yesFracture and Structural Integrity, 2015
Crack closure concept has been widely used to explain different issues of fatigue crack propagation. However, different authors have questioned the relevance of crack closure and have proposed alternative concepts.
F.V. Antunes   +3 more
doaj   +3 more sources

Tensile Test Analysis of Tire Tread Rubber’s Tendency to Resist Cracks

open access: yesApplied Sciences, 2022
Among the various components of a tire, this study explores the tread portion, which has the longest contact with the ground during the summer, all-weather, and in the winter.
Ingyu Noh, Sangyeop Hong, Jaehoon Kim
doaj   +1 more source

Significance of separations occurring in mechanical testing of thermomechanical rolled pipeline steels

open access: yesJournal of Pipeline Science and Engineering, 2022
In this study, the origin of separations is investigated in modern high strength pipeline steels. In-depth microstructure characterization and property correlation is used to demonstrate that preferred crystallographic planes are responsible for the ...
Sebastian Scholl   +2 more
doaj   +1 more source

Simulation of Near-Tip Crack Behaviour and Its Correlation to Fatigue Crack Growth with a Modified Strip-Yield Model [PDF]

open access: yes, 2008
A modified strip-yield model has been developed to simulate the plasticity-induced crack closure under the constant amplitude (CA) and a single overload loading conditions.
Chen, Y.K., Tiu, W., Wang, L., Xu, Y.
core   +1 more source

Elastic-plastic analysis of crack on bimaterial interface [PDF]

open access: yesTheoretical and Applied Mechanics, 2005
In this paper are presented solutions for the stress and dis­placement fields for a crack that lies along the interface of an elastic and elastic - plastic material and for a crack between two different elastic - plastic materials.
Nikolić Ružica R.   +1 more
doaj   +1 more source

Role of Initial Crack Tip Shape, Plastic Compressibility and Strain Softening on Near-Tip Stress-Strain State in Fatigue Cracks during Simulation of a Finite Deformation based Elastic-Viscoplastic Constitutive Model

open access: yesMedžiagotyra, 2022
This paper deals with the effect of initial crack tip shape, plastic compressibility, and strain softening on near-tip stress-strain fields for a mode I crack subjected to fatigue loading under plane strain and small scale yielding. A finite strain-based
Md Intaf ALAM   +3 more
doaj   +1 more source

Residual stress effects on fatigue crack growth rate of mild steel S355 exposed to air and seawater environments

open access: yesMaterials & Design, 2020
In this paper, the parameters of fatigue crack growth rate for Q355J2 steel exposed to air and seawater were presented using the “Paris' law” based on the stress intensity factor (SIF), J-integral, crack tip opening displacement (CTOD) and crack tip ...
Haohui Xin, Milan Veljkovic
doaj   +1 more source

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