Limiting envelopes of a porous limestone under true triaxial stress states

The influence of the intermediate principal stress on the mechanical behavior of a porous limestone is investigated by means of true triaxial tests on dry samples. The limiting envelopes are built in octahedral planes and in the (P,Q) plane in order to give a good understanding of the three-dimensional surface. For the first part of the envelopes, a shape evolution is observed with the mean stress from triangular to hexagonal and then quasi circular. This evolution is interpreted in the light of well-known failure criteria. A particular interest of this study is the experimental determination of the cap surface by means of true triaxial tests.

Country

Belgium

Related Organizations

University of Mons
Belgium

Keywords

Physical, chemical, mathematical & earth Sciences, Ingénierie mécanique, Physique, Physics, Physique, chimie, mathématiques & sciences de la terre, Earth sciences & physical geography, Mechanical engineering, Engineering, computing & technology, Ingénierie, informatique & technologie, Sciences de la terre & géographie physique

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