Experimental study of thermodynamics propagation fatigue crack in metals

This work is devoted to the development of an experimental method for studying the energy balance during cyclic deformation and fracture. The studies were conducted on 304 stainless steel AISE samples. The investigation of the fatigue crack propagation was carried out on flat samples with stress con...

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Bibliographic Details
Main Authors: Vshivkov, A., Iziumova, A., Plekhov, O.
Format: Conference Proceeding
Language:English
Subjects:
Austenitic stainless steels
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
CONCENTRATORS
COOLING
CRACK PROPAGATION
Crack tips
CRACKS
DEFORMATION
ENERGY BALANCE
ENERGY LOSSES
ENGINEERING
FATIGUE
Fatigue failure
Fatigue tests
Fracture mechanics
FRACTURES
HEAT FLUX
HEAT TRANSFER
Materials fatigue
MATERIALS SCIENCE
METALS
Propagation
Propagation modes
Railroad accidents & safety
Railroad transportation
SEEBECK EFFECT
SENSORS
STAINLESS STEEL-304
Stress propagation
STRESSES
THERMAL DIFFUSIVITY
THERMAL EFFLUENTS
THERMODYNAMICS
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Summary:This work is devoted to the development of an experimental method for studying the energy balance during cyclic deformation and fracture. The studies were conducted on 304 stainless steel AISE samples. The investigation of the fatigue crack propagation was carried out on flat samples with stress concentrators. The stress concentrator was three central holes. The heat flux sensor was developed based on the Seebeck effect. This sensor was used for measuring the heat dissipation power in the examined samples during the fatigue tests. The measurements showed that the rate of fatigue crack growth depends on the heat flux at the crack tip and there are two propagation mode of fatigue crack with different link between the propagation mode and heat flux from crack tip.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4932925