Micro void coalescence of ductile fracture in mild steel during tensile straining

The ductile fracture occurs mainly in three stages i.e. void nucleation, void growth and the voidcoalescence. The present work focuses on the study the coalescence of existing micro void in a ductile material,mild steel. The specimen with holes in square array at various angle to load axis have been...

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Main Authors: P. K. Pradhan, P. S. Robi, Sankar K. Roy
Format: Article
Language:English
Published: Gruppo Italiano Frattura 2011-12-01
Series:Fracture and Structural Integrity
Online Access:https://www.fracturae.com/index.php/fis/article/view/129
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author P. K. Pradhan
P. S. Robi
Sankar K. Roy
author_facet P. K. Pradhan
P. S. Robi
Sankar K. Roy
author_sort P. K. Pradhan
collection DOAJ
description The ductile fracture occurs mainly in three stages i.e. void nucleation, void growth and the voidcoalescence. The present work focuses on the study the coalescence of existing micro void in a ductile material,mild steel. The specimen with holes in square array at various angle to load axis have been tested. The holeswere machined in the specimen and assuming those hole as the voids. The growth and coalescence behavioursduring tensile straining were observed both in macro and micro levels. Since the existing facility is not adequateto make hole size in micron, this work has been carried out by making hole upto 500 micron. The results arecompared with other specimen with bigger size hole and without any hole. Also the effects of micro voids(present in the material) on the progress of crack have been studied. It is found that with same amount of voids,present in different positions, the mechanical properties of the material are altered.
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institution Kabale University
issn 1971-8993
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series Fracture and Structural Integrity
spelling doaj-art-598bf3d5b196441f940f8bc28be51dbf2025-01-02T23:01:30ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932011-12-0161910.3221/IGF-ESIS.19.05Micro void coalescence of ductile fracture in mild steel during tensile strainingP. K. PradhanP. S. RobiSankar K. RoyThe ductile fracture occurs mainly in three stages i.e. void nucleation, void growth and the voidcoalescence. The present work focuses on the study the coalescence of existing micro void in a ductile material,mild steel. The specimen with holes in square array at various angle to load axis have been tested. The holeswere machined in the specimen and assuming those hole as the voids. The growth and coalescence behavioursduring tensile straining were observed both in macro and micro levels. Since the existing facility is not adequateto make hole size in micron, this work has been carried out by making hole upto 500 micron. The results arecompared with other specimen with bigger size hole and without any hole. Also the effects of micro voids(present in the material) on the progress of crack have been studied. It is found that with same amount of voids,present in different positions, the mechanical properties of the material are altered.https://www.fracturae.com/index.php/fis/article/view/129
spellingShingle P. K. Pradhan
P. S. Robi
Sankar K. Roy
Micro void coalescence of ductile fracture in mild steel during tensile straining
Fracture and Structural Integrity
title Micro void coalescence of ductile fracture in mild steel during tensile straining
title_full Micro void coalescence of ductile fracture in mild steel during tensile straining
title_fullStr Micro void coalescence of ductile fracture in mild steel during tensile straining
title_full_unstemmed Micro void coalescence of ductile fracture in mild steel during tensile straining
title_short Micro void coalescence of ductile fracture in mild steel during tensile straining
title_sort micro void coalescence of ductile fracture in mild steel during tensile straining
url https://www.fracturae.com/index.php/fis/article/view/129
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AT psrobi microvoidcoalescenceofductilefractureinmildsteelduringtensilestraining
AT sankarkroy microvoidcoalescenceofductilefractureinmildsteelduringtensilestraining