Fracture mechanics and fatigue crack propagation in armor steel welds.
Saved in:
| Title: | Fracture mechanics and fatigue crack propagation in armor steel welds. |
|---|---|
| Authors: | Cabrilo, Aleksandar1 (AUTHOR) cabrilo@uns.ac.rs, Sedmak, Aleksandar2 (AUTHOR), Burzic, Zijah3 (AUTHOR), Perkovic, Srdja3 (AUTHOR) |
| Source: | Engineering Failure Analysis. Dec2019, Vol. 106, pN.PAG-N.PAG. 1p. |
| Subjects: | Crack propagation, Steel welding, Armored military vehicles, Fatigue crack growth, Welded joints, Metalwork, Material fatigue |
| Abstract: | The welding process of armor steel is a complex process due to possible welding faults appearing in all zones of weld metal joint in the form of cracks and pores, as results of high percentage of carbon in the base metal. Military armored vehicles, are exposed to dynamic and impact loads. Hence, it is important to know the fracture toughness and fatigue crack propagation in all zones of the weld joint. Fatigue crack propagation testing was made on SEN (B) specimens. Fatigue threshold for weld metal is the lowest ΔKth = 10.1 MPa*m1/2, and for base metal is the highest ΔKth = 13.4 MPa*m1/2, while the notch values in HAZ is ΔKth = 12.6 MPa*m1/2. Due to a significant interest in quantification of material resistance to crack initiation and propagation, the fatigue crack growth rate was measured in the base metal, HAZ and welded metal zone. Accordingly, the most important attention should be paid to the zone of the base metal, while the weld metal and HAZ are safe zones. • Good tensile characteristics of welded joints can be achieved by automated welding due to more intensive mixing of the base and filler material. • The highest resistance to crack propagation in relation to all zones of welded joint has the heat affected zone and weld metal. • The most important attention should be paid to the zone of the base metal, where the danger is a crack of length of ~ 6 mm, while the weld metal and HAZ are safe zones. [ABSTRACT FROM AUTHOR] |
| Copyright of Engineering Failure Analysis is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
|---|---|
| Header | DbId: egs DbLabel: Engineering Source An: 139629885 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Fracture mechanics and fatigue crack propagation in armor steel welds. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Cabrilo%2C+Aleksandar%22">Cabrilo, Aleksandar</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> cabrilo@uns.ac.rs</i><br /><searchLink fieldCode="AR" term="%22Sedmak%2C+Aleksandar%22">Sedmak, Aleksandar</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Burzic%2C+Zijah%22">Burzic, Zijah</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Perkovic%2C+Srdja%22">Perkovic, Srdja</searchLink><relatesTo>3</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Engineering+Failure+Analysis%22">Engineering Failure Analysis</searchLink>. Dec2019, Vol. 106, pN.PAG-N.PAG. 1p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Crack+propagation%22">Crack propagation</searchLink><br /><searchLink fieldCode="DE" term="%22Steel+welding%22">Steel welding</searchLink><br /><searchLink fieldCode="DE" term="%22Armored+military+vehicles%22">Armored military vehicles</searchLink><br /><searchLink fieldCode="DE" term="%22Fatigue+crack+growth%22">Fatigue crack growth</searchLink><br /><searchLink fieldCode="DE" term="%22Welded+joints%22">Welded joints</searchLink><br /><searchLink fieldCode="DE" term="%22Metalwork%22">Metalwork</searchLink><br /><searchLink fieldCode="DE" term="%22Material+fatigue%22">Material fatigue</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The welding process of armor steel is a complex process due to possible welding faults appearing in all zones of weld metal joint in the form of cracks and pores, as results of high percentage of carbon in the base metal. Military armored vehicles, are exposed to dynamic and impact loads. Hence, it is important to know the fracture toughness and fatigue crack propagation in all zones of the weld joint. Fatigue crack propagation testing was made on SEN (B) specimens. Fatigue threshold for weld metal is the lowest ΔKth = 10.1 MPa*m1/2, and for base metal is the highest ΔKth = 13.4 MPa*m1/2, while the notch values in HAZ is ΔKth = 12.6 MPa*m1/2. Due to a significant interest in quantification of material resistance to crack initiation and propagation, the fatigue crack growth rate was measured in the base metal, HAZ and welded metal zone. Accordingly, the most important attention should be paid to the zone of the base metal, while the weld metal and HAZ are safe zones. • Good tensile characteristics of welded joints can be achieved by automated welding due to more intensive mixing of the base and filler material. • The highest resistance to crack propagation in relation to all zones of welded joint has the heat affected zone and weld metal. • The most important attention should be paid to the zone of the base metal, where the danger is a crack of length of ~ 6 mm, while the weld metal and HAZ are safe zones. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Engineering Failure Analysis is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=139629885 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.engfailanal.2019.104155 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 1 StartPage: N.PAG Subjects: – SubjectFull: Crack propagation Type: general – SubjectFull: Steel welding Type: general – SubjectFull: Armored military vehicles Type: general – SubjectFull: Fatigue crack growth Type: general – SubjectFull: Welded joints Type: general – SubjectFull: Metalwork Type: general – SubjectFull: Material fatigue Type: general Titles: – TitleFull: Fracture mechanics and fatigue crack propagation in armor steel welds. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Cabrilo, Aleksandar – PersonEntity: Name: NameFull: Sedmak, Aleksandar – PersonEntity: Name: NameFull: Burzic, Zijah – PersonEntity: Name: NameFull: Perkovic, Srdja IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 12 Text: Dec2019 Type: published Y: 2019 Identifiers: – Type: issn-print Value: 13506307 Numbering: – Type: volume Value: 106 Titles: – TitleFull: Engineering Failure Analysis Type: main |
| ResultId | 1 |
