NDLI: Anisotropic stress-strain behavior at small strains of clay by triaxial and bender element tests.

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Anisotropic stress-strain behavior at small strains of clay by triaxial and bender element tests.

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Abstract	ABSTRACT: In this study, to examine the effect of the fabric anisotropy on elastic moduli (shear and Young's moduli), the bender element, cyclic and monotonic triaxial tests were performed on reconstituted clay specimens with different fabric characteristics. The specimens with the angle between the axial direction of the triaxial specimen and the bedding direction of 0 and 90 degrees were cut from the pre-consolidated clay block. These specimens were isotropically consolidated under several kinds of confining pressures. The shear wave velocities in three different directions (VH, HH, HV-wave) were measured by bender element tests, and the stiffness under wide ranges of strain levels up to failure were measured by cyclic and monotonic triaxial tests. Test results showed that; 1) the shear modulus obtained from the shear wave for propagating and vibrating horizontal to the bedding plane is higher than the others two kinds of moduli, 2) the horizontal Young’s modulus at small strain is also higher than the vertical one, 3) the anisotropy of the elastic modulus of clay is larger than that with sand, but becomes lower with the increase in strain level and consolidation stress.
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Subject Keyword	Monotonic Triaxial Test Elastic Modulus Strain Level Shear Modulus Axial Direction Small Strain Wide Range Bender Element Horizontal Young Modulus Shear Wave Velocity Fabric Anisotropy Shear Wave Different Direction Reconstituted Clay Bedding Plane Different Fabric Characteristic Consolidation Stress Several Kind Test Result Triaxial Specimen Pre-consolidated Clay Block Bender Element Test Bedding Direction
Content Type	Text
Resource Type	Article

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