Microcrack generation and propagation in granite during stress relaxation under water-saturated tri-axial condition

Shixin Liu, A. H.M. Faisal Anwar, Seiki Takafumi, Yasuaki Ichikawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Microcrack generation and propagation is an important phenomenon, which describes the long-term behavior of a crystalline rock. In this study, a progressive development of microcrack in granite and its prop A series of triaxial relaxation tests was performed with fine and coarse grained granite. Results revealed that there exists a strong relationship between the stress relaxation and the microcrack propagation. Three stages of stress relaxation rate were identified where stage one offers the maximum microcrack generation and propagation. The microcrack propagation in fine grain granite was found higher than the coarse grain granite because of higher number of contact points between the grain boundaries. Stress concentration occurs in these boundaries and microcracks are propagated through these contact points.

Original languageEnglish
Title of host publicationProceedings of the 12th International Conference on Inspection, Appraisal, Repairs and Maintenance of Structures
EditorsYong-Bo Shao, Chat-Tim Tam, Xin-Gang Zhou
PublisherCI-Premier Pte Ltd
Pages675-683
Number of pages9
Volume1
ISBN (Electronic)9789810851996
Publication statusPublished - Jan 1 2010
Externally publishedYes
Event12th International Conference on Inspection, Appraisal, Repairs and Maintenance of Structures - Yantai, China
Duration: Apr 23 2010Apr 25 2010

Other

Other12th International Conference on Inspection, Appraisal, Repairs and Maintenance of Structures
CountryChina
CityYantai
Period4/23/104/25/10

Keywords

  • Microcrack generation and propagation
  • Stress relaxation
  • Triaxial condition

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Architecture
  • Mechanical Engineering
  • Building and Construction

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  • Cite this

    Liu, S., Faisal Anwar, A. H. M., Takafumi, S., & Ichikawa, Y. (2010). Microcrack generation and propagation in granite during stress relaxation under water-saturated tri-axial condition. In Y-B. Shao, C-T. Tam, & X-G. Zhou (Eds.), Proceedings of the 12th International Conference on Inspection, Appraisal, Repairs and Maintenance of Structures (Vol. 1, pp. 675-683). CI-Premier Pte Ltd.