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 paper, Computational homogenization tool is applied to evaluate the effective properties of self-healing concrete (SHC) by bridging macro and micro scales, which forms the basis for multi-scale modeling.
Abstract: Computational homogenization is a versatile tool that can extract effective properties of heterogeneous or composite material through averaging technique. Self-healing concrete (SHC) is a heterogeneous material which has different constituents as cement matrix, sand and healing agent carrying capsules. Computational homogenization tool is applied in this paper to evaluate the effective properties of self-healing concrete. With this technique, macro and micro scales are bridged together which forms the basis for multi-scale modeling. Representative volume element (RVE) is a small (microscopic) cell which contains all the microphases of the microstructure. This paper presents a technique for RVE design of SHC and shows the influence of volume fractions of different constituents, RVE size and mesh uniformity on the homogenization results.
29 citations
TL;DR: In this paper, a nonlinear nested multiscale technique, in which the subscale problem is used as a constitutive model, is devised, and the effects of varying physical parameters as well as of the discretization are considered.
29 citations
TL;DR: In this paper, the effective elastic properties of sisal fiber-reinforced polystyrene composite were evaluated and compared to natural fiber composites as a potential structural material, and the results showed that sisal fibers have better elastic properties than natural fiber composite materials.
Abstract: In recent years, natural fiber composites have attracted attention as a potential structural material. This study evaluates the effective elastic properties of sisal fiber-reinforced polystyrene co...
29 citations
TL;DR: In this paper, a special procedure is developed to handle the primary nonrectangular periodicity with common numerical homogenization techniques based on FE-models for unidirectional fiber reinforced composites with rhombic fiber arrangements.
29 citations
TL;DR: In this paper, the authors discussed the existence of the spatial effect and RVE variation using the 3D fracture network of the White Crane Dam and comprehensively examined the parameters P32, mean directions, and concentration parameter as research foci, the Chi-square goodness-of-fit test, Kolmogorov-Smirnov goodness of fit test, and Watson test are conducted, and the RVE (11m) of the rock mass is calculated.
29 citations