Topic
Representative elementary volume
About: Representative elementary volume is a research topic. Over the lifetime, 4105 publications have been published within this topic receiving 86863 citations.
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TL;DR: In this article, a new micromechanical theory, which couples the local and global effects, has been developed and applied to functionally graded composites, and this theory is used to assess the limits of applicability of the standard MC approach in predicting local stresses in the fiber and matrix phases of functionally graded composite subjected to a thermal gradient.
58 citations
TL;DR: In this article, the behavior of each grain is taken into account using a single crystal elasto-viscoplastic model which includes the microscopic mechanisms of plastic deformation by slip along basal, prismatic and pyramidal systems.
58 citations
01 Jan 1987
TL;DR: This chapter discusses the concept of the Representative Elementary Volume that serves as a cornerstone in the continuum modeling of transport phenomena in porous media and quantitative criteria are presented for the selection of the size of the REV.
Abstract: This chapter discusses the concept of the Representative Elementary Volume (REV) that serves as a cornerstone in the continuum modeling of transport phenomena in porous media (4). Following the presentation of the concept, quantitative criteria are presented for the selection of the size of the REV.
58 citations
TL;DR: The adequacy for laboratory testing of four dolomite cores from the Culebra Dolomite of the Rustler Formation at the Waste Isolation Pilot Plant near Carlsbad, New Mexico, were evaluated using representative elementary volume (REV) theory.
Abstract: The adequacy for laboratory testing of four dolomite cores from the Culebra Dolomite of the Rustler Formation at the Waste Isolation Pilot Plant near Carlsbad, New Mexico, were evaluated using representative elementary volume (REV) theory. Gamma ray computerized tomography created three-dimensional grids of bulk density and macropore index over volumes from 1.4 × 10−7 to 1.6 L. Three different methods for both volume averaging and REV analysis were applied and compared. Both density and macropore index converged to single values with increasing volume, which meets the most common qualitative definition of a REV. Statistical test results for the relatively homogeneous samples indicate that volumes larger than 1 to 7 mL have constant properties. Contrarily, a highly varied sample required 250 and 373 mL to achieve invariant density and macropore characteristics, respectively. Prismatic volume averaging was found to be better than slice averaging, while a qualitative test for the REV provided similar results as a rigorous statistical method. All cores were larger than the REV but were significantly different from one another. This implies that multiple cores are necessary to determine the entire range of transport properties within the rock.
58 citations
TL;DR: In this paper, an attempt is made to provide for the first time tomographic evidence of damage nucleation and evolution under shear-dominated loading conditions in a modern engineering material.
57 citations