Results 21 to 30 of about 13,745 (237)

Analytical Energy Release Rate of Interfacial Crack in Composite Laminates

open access: yesXibei Gongye Daxue Xuebao, 2019
In order to study whether the interfacial crack will grow or not in the composite laminates, the energy release rate of a crack in three-point bending model was obtained by using the Timoshenko beam theory and local generalized forces.

doaj   +1 more source

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

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   +1 more source

The influence of crack tip shielding on fatigue crack propagation [PDF]

open access: yesFracture and Structural Integrity, 2017
The fatigue crack propagation is one of the major problems and of the real concern in the evaluation of the structural integrity of components. This is due to the fact that once a fatigue crack has been detected it is also known its effect on the ...
Anghel Cernescu
doaj   +2 more sources

Dynamic Strain Evolution around a Crack Tip under Steady- and Overloaded-Fatigue Conditions

open access: yesMetals, 2015
We investigated the evolution of the strain fields around a fatigued crack tip between the steady- and overloaded-fatigue conditions using a nondestructive neutron diffraction technique.
Soo Yeol Lee   +5 more
doaj   +1 more source

Effect of Cold Working on the Driving Force of the Crack Growth and Crack Growth Rate of Welded Joints under One Overload

open access: yesAdvances in Materials Science and Engineering, 2020
To understand the effect of cold working of welding heat-affected zone on the driving force of the crack growth and crack growth rate of stress corrosion cracking (SCC) near the welding fusion line, the finite element simulation method was used to ...
Hongliang Yang   +3 more
doaj   +1 more source

EXPERIMENTAL STUDY ON THE INFLUENCE OF BLUNTING CRACK TIP ON MECHANICAL PROPERTIES OF CT SPECIMENS

open access: yesJixie qiangdu, 2021
Mechanical properties of compact tensile( CT) specimens were studied by plane fracture toughness test,fracture morphology characteristics of both tip crack and blunt crack specimens were analyzed,and the influence of crack tip blunting on mechanical ...
ZHANG ZhuWu   +4 more
doaj  

Fracture behavior dependent on crack-tip shapes in nanoscale crack-defect monolayer boron nitride sheets

open access: yesInternational Journal of Smart and Nano Materials, 2021
Nanoscale defects, including cracks, circular holes, and the triangular-shaped defects, often occur in the growth of boron nitride nanosheets (BNNS). In this study, the fracture behavior of chiral BNNS with different crack-tip shapes and the interactions
Wentao Su   +4 more
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

Effect of numerical parameters on plastic CTOD [PDF]

open access: yesFracture and Structural Integrity, 2017
Fatigue crack growth (FCG) is associated with irreversible and non-linear processes happening at the crack tip. This explains different problems observed in the use of da/dN-?K curves, namely the inability to explain stress ratio and load history effects.
F.V. Antunes   +3 more
doaj   +2 more sources

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