Untitled

Kryven, V. A.

doi:10.1023/a:1013201920843

Cited by 2 publications

(2 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the surface of the specimen, at the crack nucleation stage, a V-shaped zone of strain localization is formed. The kinetics of its development is directly associated with the fracture pattern (Kryven' 2001). If its development is blocked by the plastic flow at the microand mesoscale levels, the fracture of specimens is developed by normal fracture under action of normal tensile stresses.…”

Section: Discussion Of the Resultsmentioning

confidence: 99%

“…At the top of the fatigue crack, the plastic zone has a pronounced shape, while at the opposite side of the hole, it becomes blurred. This means that within the bands of localized deformation, the maximum value of shear strain intensity is kept, which predefines the path and mechanism of fatigue crack growth (Kryven' 2001;Panasyuk et al 1995). -Stage 3.…”

Section: Discussion Of the Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Structural Levels of the Nucleation and Growth of Fatigue Crack in 17mn1si Steel Pipeline After Long-Term Service

et al. 2015

View full text Add to dashboard Cite

The majority of modern gas pipelines in Ukraine, Lithuania and Russia have been operating for more than 30–40 years. The problem of forecasting residual life-time of materials comprising such gas pipelines calls for study of their degradation kinetics as well as requires to determine its relationship with the strain-force loading parameters. The aim of the paper is to study the kinetics of fracture in order to range mechanisms of cyclic deformation of 17Mn1Si steel at nucleation and growth of a fatigue crack. Flat specimens were cut out from a fragment of 17Mn1Si steel pipe after 40 years of service. Microstructures of specimens were examined. In the paper, an attempt was made to apply the combined approach to study of deformation and fracture based on the following research parameters from nonlinear fracture mechanics: physical mesomechanics and numerical fractography.

show abstract

Section: Discussion Of the Resultsmentioning

confidence: 99%

Section: Discussion Of the Resultsmentioning

confidence: 99%