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Titolo:
Effects of water on rock strength in a brittle regime
Autore:
Masuda, K;
Indirizzi:
Natl Inst Adv Ind Sci & Technol, AIST Tsukuba Cent 7, Tsukuba, Ibaraki 3058567, Japan Natl Inst Adv Ind Sci & Technol Tsukuba Ibaraki Japan 3058567 8567, Japan
Titolo Testata:
JOURNAL OF STRUCTURAL GEOLOGY
fascicolo: 11, volume: 23, anno: 2001,
pagine: 1653 - 1657
SICI:
0191-8141(200111)23:11<1653:EOWORS>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
STRESS-CORROSION; GRANITE; PRESSURE; CREEP;
Keywords:
granite; andesite; strain rate; pressure;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
19
Recensione:
Indirizzi per estratti:
Indirizzo: Masuda, K Natl Inst Adv Ind Sci & Technol, AIST Tsukuba Cent 7, Tsukuba, Ibaraki 3058567, Japan Natl Inst Adv Ind Sci & Technol Tsukuba Ibaraki Japan 3058567 n
Citazione:
K. Masuda, "Effects of water on rock strength in a brittle regime", J STRUC GEO, 23(11), 2001, pp. 1653-1657

Abstract

Failure strengths of granite and andesite have been measured under variousconditions of strain rate and confining pressure both in the dry and wet states. Constant-stress creep tests for granitic samples have been also conducted. All specimens show that the failure strength decreased linearly as the logarithm of the strain rate decreased, The strain rate dependence of the failure strength is increased at higher confining pressures. The strain rate effect is more apparent on the failure strengths of wet samples than dry samples in lower confining pressure ranges. In the constant-stress creep experiments, the creep failure strength decreased as the logarithm of the time to failure increased. Time-dependent failure strength of all rocks observed in the regime of the present study may be interpreted by subcritical crack growth assisted by the stress corrosion mechanism. (C) 2001 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/11/20 alle ore 23:56:50