Deformation and fracturing behaviour of discontinuous rock mass and damage mechanics theory

Toshikazu Kawamoto, Yasuaki Ichikawa, Takashi Kyoya

Research output: Contribution to journalArticlepeer-review

273 Citations (Scopus)


The mechanical behaviour of a rock mass is strongly affected by discontinuities such as faults and joints. In this paper, a damage mechanics theory is proposed which deals with some sets of discontinuities distributed in a rock mass, for example, joint systems. In this theory, the distributed discontinuities are characterized by a second‐order symmetric tensor, called the damage tensor. By introducing the damage concept, the deformation and fracturing behaviour of the rock mass can be reated in a framework of continuum mechanics. A numerical procedure is developed in order to implement the damage mechanics model by using the finite element method. The theory and numerical analysis are applied to several laboratory tests and a practical underground opening problem. Numerical results are compared with measured data.

Original languageEnglish
Pages (from-to)1-30
Number of pages30
JournalInternational Journal for Numerical and Analytical Methods in Geomechanics
Issue number1
Publication statusPublished - Jan 1 1988
Externally publishedYes

ASJC Scopus subject areas

  • Computational Mechanics
  • Materials Science(all)
  • Geotechnical Engineering and Engineering Geology
  • Mechanics of Materials


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