DAMAGE MECHANICS THEORY FOR DISCONTINUOUS ROCK MASS.

T. Kyoya, Y. Ichikawa, T. Kawamoto

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

31 Citations (Scopus)

Abstract

In this paper, a new concept for rock mass involving distributed discontinuities in the body is proposed, so called the damage mechanics theory for rock mass. The effect of distributed discontinuities is characterized with a second-order symmetric tensor (the damage tensor), which was originally proposed by S. Murakami & N. Ohno in their creep damage theory for metal. The damage tensor is built in the system of a continuum mechanics theory, and plays a role of transformation operator for the Cauchy stress. Since the damage tensor is introduced as a field variable in addition to stress and strain, one may need one more field equation which governs the propagation of damage. We propose a form of the propagation equation. The theory is applied to a few typical problems and the results are compared with ones of other numerical schemes.

Original languageEnglish
Title of host publicationUnknown Host Publication Title
EditorsT. Kawamoto, Y. Ichikawa
PublisherA.A. Balkema
Pages469-480
Number of pages12
ISBN (Print)9061915813
Publication statusPublished - 1985 Dec 1
Externally publishedYes

Publication series

Name
Volume1

ASJC Scopus subject areas

  • Engineering(all)

Fingerprint Dive into the research topics of 'DAMAGE MECHANICS THEORY FOR DISCONTINUOUS ROCK MASS.'. Together they form a unique fingerprint.

Cite this