Abstract
This study presents a three-dimensional finite element elastoplastic analysis to investigate the distribution of radial stresses in direct simple shear tests. The analysis was conducted to address the limitation of most DSS devices, which only measure the average vertical and shear stresses, and do not provide complete stress states of tested specimens. Through the analysis, the distribution of radial stresses acting on the perimeter of the cylindrical wall of the specimen and at any point of the sample was quantified. The results demonstrate that the radial stresses exhibit significant variation in the specimen, which has implications for soil constitutive models. Overall, this study provides new insights into the behavior of soils under simple shear loading and highlights the importance of considering the complete stress state of specimens in DSS tests.
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