Rotary compression as a new calibration test for prediction of a critical damage value

The article presents the problem of ductile fracture of metals and metal alloys formed in hot working conditions. The basic damage criteria used in modelling fracture as well as calibrating tests used to determine the critical damage values were discussed. A concept of a new calibrating test based o...

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Main Authors: Zbigniew Pater, Janusz Tomczak, Tomasz Bulzak
Format: Article
Language:English
Published: Elsevier 2020-05-01
Series:Journal of Materials Research and Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2238785420303525
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author Zbigniew Pater
Janusz Tomczak
Tomasz Bulzak
author_facet Zbigniew Pater
Janusz Tomczak
Tomasz Bulzak
author_sort Zbigniew Pater
collection DOAJ
description The article presents the problem of ductile fracture of metals and metal alloys formed in hot working conditions. The basic damage criteria used in modelling fracture as well as calibrating tests used to determine the critical damage values were discussed. A concept of a new calibrating test based on rotary compression of a disc or a cylinder was presented. Using the proposed calibrating test along with nine damage criteria the critical damage values for 50HS (1.5026) grade steel, formed in the temperature range 950 °C to 1150 °C were determined. A significant dependency of the critical damage value on temperature was observed. The stress states occurring in rotary compression and the cross-wedge rolling, skew rolling in a two-roll rolling mill and helical-wedge rolling processes were compared. On the basis of the results obtained it was advised to apply rotary compression of a cylinder samples to determine the critical damage values used in the analyses of cross- and skew rolling.
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spelling doaj.art-4cd8aeee28664c0fb5ba7b1a05ef79ba2022-12-22T00:06:46ZengElsevierJournal of Materials Research and Technology2238-78542020-05-019354875498Rotary compression as a new calibration test for prediction of a critical damage valueZbigniew Pater0Janusz Tomczak1Tomasz Bulzak2Corresponding author.; Lublin University of Technology, 36 Nadbystrzycka Str., 20-618 Lublin, PolandLublin University of Technology, 36 Nadbystrzycka Str., 20-618 Lublin, PolandLublin University of Technology, 36 Nadbystrzycka Str., 20-618 Lublin, PolandThe article presents the problem of ductile fracture of metals and metal alloys formed in hot working conditions. The basic damage criteria used in modelling fracture as well as calibrating tests used to determine the critical damage values were discussed. A concept of a new calibrating test based on rotary compression of a disc or a cylinder was presented. Using the proposed calibrating test along with nine damage criteria the critical damage values for 50HS (1.5026) grade steel, formed in the temperature range 950 °C to 1150 °C were determined. A significant dependency of the critical damage value on temperature was observed. The stress states occurring in rotary compression and the cross-wedge rolling, skew rolling in a two-roll rolling mill and helical-wedge rolling processes were compared. On the basis of the results obtained it was advised to apply rotary compression of a cylinder samples to determine the critical damage values used in the analyses of cross- and skew rolling.http://www.sciencedirect.com/science/article/pii/S2238785420303525DamageRotary compression testFEMExperiment
spellingShingle Zbigniew Pater
Janusz Tomczak
Tomasz Bulzak
Rotary compression as a new calibration test for prediction of a critical damage value
Journal of Materials Research and Technology
Damage
Rotary compression test
FEM
Experiment
title Rotary compression as a new calibration test for prediction of a critical damage value
title_full Rotary compression as a new calibration test for prediction of a critical damage value
title_fullStr Rotary compression as a new calibration test for prediction of a critical damage value
title_full_unstemmed Rotary compression as a new calibration test for prediction of a critical damage value
title_short Rotary compression as a new calibration test for prediction of a critical damage value
title_sort rotary compression as a new calibration test for prediction of a critical damage value
topic Damage
Rotary compression test
FEM
Experiment
url http://www.sciencedirect.com/science/article/pii/S2238785420303525
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AT janusztomczak rotarycompressionasanewcalibrationtestforpredictionofacriticaldamagevalue
AT tomaszbulzak rotarycompressionasanewcalibrationtestforpredictionofacriticaldamagevalue