Impression Creep Tests as Index Creep Testing Technique in Rock Mechanics and Rock Engineering.
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| Title: | Impression Creep Tests as Index Creep Testing Technique in Rock Mechanics and Rock Engineering. |
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| Authors: | Aydan, Ö.1 (AUTHOR) aydan@tec.u-ryukyu.ac.jp, Ito, T.1 (AUTHOR), Özcan, N. T.2 (AUTHOR), Özkan, İ.3 (AUTHOR), Rassouli, F.4 (AUTHOR) |
| Source: | Rock Mechanics & Rock Engineering. Jun2026, Vol. 59 Issue 6, p5873-5898. 26p. |
| Subject Terms: | *Creep testing, *Rock mechanics, *Empirical research, *Creep (Materials), *Stress measurement (Mechanics), *Rock deformation |
| Abstract: | A new testing technique is developed as an index creep device for evaluating time-dependent responses of rocks. Rock samples from Çankırı, Tuzköy in Nevşehir and Kağızman in Kars Provinces of Türkiye and Oya tuff from Tochigi Prefecture in Japan with well-studied time-dependent properties are selected for index creep tests. The impression creep devices developed are capable of applying tip pressure up to 433 MPa for an indenter of 3 mm in diameter for index creep testing technique. Experimental results obtained from impression creep tests are compared with those from conventional creep tests and the suitability of impression creep tests as an index creep test is explored. The most critical issue in creep tests is the determination of stress level. This issue is investigated through experimental, theoretical and numerical methods. It is proposed that the short-term impression test can be utilized for determination of the stress level in impression creep tests. The experimental results clearly demonstrated that both conventional creep and index creep tests are quite comparable and similar type responses are observed and it is concluded that the impression creep technique can be utilized as an index creep test. Highlights: In this paper, an impression creep testing device is developed as an index creep technique for evaluating time-dependent responses of rocks. Theoretical and numerical studies performed for how to establish interrelations for strain and stress in impression tests and conventional tests. Creep characteristics from impression creep tests on rocks are compared with those from conventional creep tests on the same rocks and good correlations are obtained. The experimental results could be useful for researchers dealing with the estimation of time dependent properties of rocks, rapidly. There is a high possibility for the utilization of the impression creep as an index creep test in the field of rock mechanics and rock engineering. [ABSTRACT FROM AUTHOR] |
| Database: | Energy & Power Source |
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| Header | DbId: enr DbLabel: Energy & Power Source An: 195093712 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Impression Creep Tests as Index Creep Testing Technique in Rock Mechanics and Rock Engineering. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Aydan%2C+Ö%2E%22">Aydan, Ö.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> aydan@tec.u-ryukyu.ac.jp</i><br /><searchLink fieldCode="AR" term="%22Ito%2C+T%2E%22">Ito, T.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Özcan%2C+N%2E+T%2E%22">Özcan, N. T.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Özkan%2C+İ%2E%22">Özkan, İ.</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Rassouli%2C+F%2E%22">Rassouli, F.</searchLink><relatesTo>4</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Rock+Mechanics+%26+Rock+Engineering%22">Rock Mechanics & Rock Engineering</searchLink>. Jun2026, Vol. 59 Issue 6, p5873-5898. 26p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22Creep+testing%22">Creep testing</searchLink><br />*<searchLink fieldCode="DE" term="%22Rock+mechanics%22">Rock mechanics</searchLink><br />*<searchLink fieldCode="DE" term="%22Empirical+research%22">Empirical research</searchLink><br />*<searchLink fieldCode="DE" term="%22Creep+%28Materials%29%22">Creep (Materials)</searchLink><br />*<searchLink fieldCode="DE" term="%22Stress+measurement+%28Mechanics%29%22">Stress measurement (Mechanics)</searchLink><br />*<searchLink fieldCode="DE" term="%22Rock+deformation%22">Rock deformation</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: A new testing technique is developed as an index creep device for evaluating time-dependent responses of rocks. Rock samples from Çankırı, Tuzköy in Nevşehir and Kağızman in Kars Provinces of Türkiye and Oya tuff from Tochigi Prefecture in Japan with well-studied time-dependent properties are selected for index creep tests. The impression creep devices developed are capable of applying tip pressure up to 433 MPa for an indenter of 3 mm in diameter for index creep testing technique. Experimental results obtained from impression creep tests are compared with those from conventional creep tests and the suitability of impression creep tests as an index creep test is explored. The most critical issue in creep tests is the determination of stress level. This issue is investigated through experimental, theoretical and numerical methods. It is proposed that the short-term impression test can be utilized for determination of the stress level in impression creep tests. The experimental results clearly demonstrated that both conventional creep and index creep tests are quite comparable and similar type responses are observed and it is concluded that the impression creep technique can be utilized as an index creep test. Highlights: In this paper, an impression creep testing device is developed as an index creep technique for evaluating time-dependent responses of rocks. Theoretical and numerical studies performed for how to establish interrelations for strain and stress in impression tests and conventional tests. Creep characteristics from impression creep tests on rocks are compared with those from conventional creep tests on the same rocks and good correlations are obtained. The experimental results could be useful for researchers dealing with the estimation of time dependent properties of rocks, rapidly. There is a high possibility for the utilization of the impression creep as an index creep test in the field of rock mechanics and rock engineering. [ABSTRACT FROM AUTHOR] |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s00603-024-04226-5 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 26 StartPage: 5873 Subjects: – SubjectFull: Creep testing Type: general – SubjectFull: Rock mechanics Type: general – SubjectFull: Empirical research Type: general – SubjectFull: Creep (Materials) Type: general – SubjectFull: Stress measurement (Mechanics) Type: general – SubjectFull: Rock deformation Type: general Titles: – TitleFull: Impression Creep Tests as Index Creep Testing Technique in Rock Mechanics and Rock Engineering. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Aydan, Ö. – PersonEntity: Name: NameFull: Ito, T. – PersonEntity: Name: NameFull: Özcan, N. T. – PersonEntity: Name: NameFull: Özkan, İ. – PersonEntity: Name: NameFull: Rassouli, F. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 07232632 Numbering: – Type: volume Value: 59 – Type: issue Value: 6 Titles: – TitleFull: Rock Mechanics & Rock Engineering Type: main |
| ResultId | 1 |
