Modeling the Change in Shape of Low-Cycle Inclined Semi-Elliptical Cracks

Modeling of the spatial low-cycle crack kinetics for refined service life and survivability of elements of aviation, rocket and space, nuclear, and other critical equipment is studied. The results of experimental studies and numerical calculations of the parameters of shape change are presented, tak...

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Published in:Journal of machinery manufacture and reliability 2024, Vol.53 (7), p.693-701
Main Authors: Makhutov, N. A., Makarenko, I. V., Makarenko, L. V.
Format: Article
Language:English
Subjects:
Elastoplasticity
Engineering
Fracture mechanics
Machines
Manufacturing
Parameters
Processes
Reliability
Service life
Shape
Strain
Strength
Survivability
Wear Resistance of Machines and Structures
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Makarenko, I. V.
Makarenko, L. V.
description Modeling of the spatial low-cycle crack kinetics for refined service life and survivability of elements of aviation, rocket and space, nuclear, and other critical equipment is studied. The results of experimental studies and numerical calculations of the parameters of shape change are presented, taking into account the characteristics of the microrelief and the complex surface of low-cycle fracture of inclined surface semi-elliptical cracks. A functional relationship is shown between the mesostructural characteristics of low-cycle fragmentation of the surface of the cracks under study with parameters of nonlinear fracture mechanics such as the strain intensity coefficient and the specific elastoplastic work of fracture at a certain point of the defect contour.
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subjects Elastoplasticity
Engineering
Fracture mechanics
Machines
Manufacturing
Parameters
Processes
Reliability
Service life
Shape
Strain
Strength
Survivability
Wear Resistance of Machines and Structures
title Modeling the Change in Shape of Low-Cycle Inclined Semi-Elliptical Cracks
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