Results 11 to 20 of about 12,651 (176)

Evaluation of the Effective Stress Intensity Factor Using Thermoelastic Stress Analysis and 2D Digital Image Correlation

open access: yesPhysical Sciences Forum, 2022
In the present work, fatigue crack tip shielding influence is assessed via two full-field optical techniques which are thermoelastic stress analysis and digital image correlation.
Alonso Camacho-Reyes   +6 more
doaj   +1 more source

Experimental evaluation of CTOD in constant amplitude fatigue crack growth from crack tip displacement fields [PDF]

open access: yesFracture and Structural Integrity, 2017
In the current work an experimental study of the crack tip opening displacement (CTOD) is performed to evaluate the ability of this parameter to characterise fatigue crack growth.
J.M. Vasco-Olmo   +3 more
doaj   +2 more sources

Crack shielding in non-planar and frictional discontinuities under mixed-mode loading [PDF]

open access: yesMATEC Web of Conferences, 2019
In this paper, a two-dimensional model to describe the non-planar features of crack morphologies is presented. The model accounts for frictional tractions along the crack surfaces by considering an elastic-plastic-like constitutive interface law ...
Spagnoli Andrea   +2 more
doaj   +1 more source

Growth of inclined fatigue cracks using the biaxial CJP model [PDF]

open access: yesFracture and Structural Integrity, 2015
The CJP model of crack tip stresses is a modified version of the Williams crack tip stress field which takes account of simplified stress distributions that arise from the presence of a zone of plastic deformation associated with the crack flanks and ...
G. Laboviciute   +3 more
doaj   +3 more sources

Modified Model of Crack Tip Stress Field Considering Dislocation Slip Accumulation and Crack Tip Blunting

open access: yesChinese Journal of Mechanical Engineering, 2023
This study uses the digital image correlation technique to measure the crack tip displacement field at various crack lengths in U71MnG rail steel, and the interpolated continuous displacement field was obtained by fitting with a back propagation (BP ...
Jian Li   +6 more
doaj   +1 more source

Mechanical Properties of Epoxy/Clay Composite Coatings on an X65 Steel Substrate

open access: yesCogent Engineering, 2021
This paper presents the results of a combined experimental and theoretical study of the interfacial and mechanical properties of epoxy/clay composites coatings on a mild steel substrate.
Odette F. Ngasoh   +9 more
doaj   +1 more source

Investigation of compact tensile and fracture mechanical properties of a duplex stainless steel bimetal composite with the interfacial zone

open access: yesJournal of Materials Research and Technology, 2022
The interfacial zone formed in the manufacturing process of bimetal or laminated metal composites owes complicated microstructures and properties. This special feature greatly affects the fracture toughness and fatigue strength of metal composites.
Zhou Li   +5 more
doaj   +1 more source

Numerical Investigation of Thermoelastic Crack Interactions in Various Materials using a Novel Enrichment Approach [PDF]

open access: yesInternational Journal of Mathematical, Engineering and Management Sciences, 2023
Crack interaction studies play a crucial role in understanding and predicting the fracture behaviour of various engineering components subjected to thermomechanical loads.
Ayush Awasthi, Mohit Pant
doaj   +1 more source

Non-Schmid Effect on the Fracture Behavior of Tungsten

open access: yesCrystals, 2023
The fracture process of tungsten is dominated by the competition mechanism between the plastic deformation and the crack propagation near the crack tip. The non-Schmid (NS) effect, which considers the contribution of non-planar shear stress on the screw ...
Zhijie Li, Yinan Cui
doaj   +1 more source

Experimental characterisation of fatigue crack growth based on the CTOD measured from crack tip displacement fields using DIC

open access: yesFracture and Structural Integrity, 2019
The current work presents an experimental study on the use of the crack tip opening displacement (CTOD) to evaluate its ability to characterise fatigue crack growth.
J.M. Vasco-Olmo   +3 more
doaj   +3 more sources

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