Analysis of different techniques for obtaining pre-cracked/notched small punch test specimens
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| Title: | Analysis of different techniques for obtaining pre-cracked/notched small punch test specimens |
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| Authors: | Cuesta, I.I.1 iicuesta@ubu.es, Rodriquez, C.2, Belzunce, F.J.2, Alegre, J.M.1 |
| Source: | Engineering Failure Analysis. Dec2011, Vol. 18 Issue 8, p2282-2287. 6p. |
| Subjects: | Fracture mechanics, Punching (Metalwork), Stress concentration, Notch effect, Metal stress corrosion, Strength of materials, Micromachining |
| Abstract: | Abstract: Nowadays, there are standards for determining the mechanical and fracture properties of a material. However, these standards require a sufficient amount of material to be tested, something that is not always possible or convenient. In those cases where there is not enough material for conducting conventional tests to determine these properties of the material analyzed, there are now several non-standard tests that will achieve this purpose. One of them is the small punch test (SPT), which basically consists of deforming a miniature specimen using a high-strength punch, while the sides of the specimen are clamped between two dies. One of the greatest challenges at present is to obtain the fracture properties of a material from this type of test using pre-cracked specimens. To achieve this initial crack in the SPT specimen prior to fracture testing, there are two techniques which are mainly being used at present. The first one uses high-precision micromachining (HPM), while the second relies on laser-induced micromachining (LIM). The main objective of this paper is to analyze the differences between these two techniques, taking into account the shape of the pre-crack obtained and the stress distribution at the pre-crack tip during the test. In this way, it is possible to determine which of them is the most appropriate for estimating the fracture properties of the material used. [Copyright &y& Elsevier] |
| 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 |
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| Header | DbId: egs DbLabel: Engineering Source An: 66771646 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Analysis of different techniques for obtaining pre-cracked/notched small punch test specimens – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Cuesta%2C+I%2EI%2E%22">Cuesta, I.I.</searchLink><relatesTo>1</relatesTo><i> iicuesta@ubu.es</i><br /><searchLink fieldCode="AR" term="%22Rodriquez%2C+C%2E%22">Rodriquez, C.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Belzunce%2C+F%2EJ%2E%22">Belzunce, F.J.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Alegre%2C+J%2EM%2E%22">Alegre, J.M.</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Engineering+Failure+Analysis%22">Engineering Failure Analysis</searchLink>. Dec2011, Vol. 18 Issue 8, p2282-2287. 6p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Fracture+mechanics%22">Fracture mechanics</searchLink><br /><searchLink fieldCode="DE" term="%22Punching+%28Metalwork%29%22">Punching (Metalwork)</searchLink><br /><searchLink fieldCode="DE" term="%22Stress+concentration%22">Stress concentration</searchLink><br /><searchLink fieldCode="DE" term="%22Notch+effect%22">Notch effect</searchLink><br /><searchLink fieldCode="DE" term="%22Metal+stress+corrosion%22">Metal stress corrosion</searchLink><br /><searchLink fieldCode="DE" term="%22Strength+of+materials%22">Strength of materials</searchLink><br /><searchLink fieldCode="DE" term="%22Micromachining%22">Micromachining</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Abstract: Nowadays, there are standards for determining the mechanical and fracture properties of a material. However, these standards require a sufficient amount of material to be tested, something that is not always possible or convenient. In those cases where there is not enough material for conducting conventional tests to determine these properties of the material analyzed, there are now several non-standard tests that will achieve this purpose. One of them is the small punch test (SPT), which basically consists of deforming a miniature specimen using a high-strength punch, while the sides of the specimen are clamped between two dies. One of the greatest challenges at present is to obtain the fracture properties of a material from this type of test using pre-cracked specimens. To achieve this initial crack in the SPT specimen prior to fracture testing, there are two techniques which are mainly being used at present. The first one uses high-precision micromachining (HPM), while the second relies on laser-induced micromachining (LIM). The main objective of this paper is to analyze the differences between these two techniques, taking into account the shape of the pre-crack obtained and the stress distribution at the pre-crack tip during the test. In this way, it is possible to determine which of them is the most appropriate for estimating the fracture properties of the material used. [Copyright &y& Elsevier] – 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.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.engfailanal.2011.08.004 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 6 StartPage: 2282 Subjects: – SubjectFull: Fracture mechanics Type: general – SubjectFull: Punching (Metalwork) Type: general – SubjectFull: Stress concentration Type: general – SubjectFull: Notch effect Type: general – SubjectFull: Metal stress corrosion Type: general – SubjectFull: Strength of materials Type: general – SubjectFull: Micromachining Type: general Titles: – TitleFull: Analysis of different techniques for obtaining pre-cracked/notched small punch test specimens Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Cuesta, I.I. – PersonEntity: Name: NameFull: Rodriquez, C. – PersonEntity: Name: NameFull: Belzunce, F.J. – PersonEntity: Name: NameFull: Alegre, J.M. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 12 Text: Dec2011 Type: published Y: 2011 Identifiers: – Type: issn-print Value: 13506307 Numbering: – Type: volume Value: 18 – Type: issue Value: 8 Titles: – TitleFull: Engineering Failure Analysis Type: main |
| ResultId | 1 |
