Results 141 to 150 of about 56,233 (193)
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International Journal of Fatigue, 2016
Abstract This paper studies a multiaxial fatigue crack mode and a fatigue life of Ti–6Al–4V. Load controlled fatigue tests at room temperature were carried out using a hollow cylinder specimen under multiaxial loading with principal stress ratio λ equal to 0, 0.4, 0.5 and 1.0 and loading ratio R kept constant and equal to 0. λ is defined as λ = σ2/σ1,
Takahiro Morishita +4 more
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Abstract This paper studies a multiaxial fatigue crack mode and a fatigue life of Ti–6Al–4V. Load controlled fatigue tests at room temperature were carried out using a hollow cylinder specimen under multiaxial loading with principal stress ratio λ equal to 0, 0.4, 0.5 and 1.0 and loading ratio R kept constant and equal to 0. λ is defined as λ = σ2/σ1,
Takahiro Morishita +4 more
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Stress Nonuniformities in Hollow Cylinder Torsional Specimens
Geotechnical Testing Journal, 1991Abstract Stress nonuniformities across the wall of hollow cylindrical torsional shear (HCT) specimens under generalized stress conditions are assessed taking into account the nonlinearity in soil behavior. The domain of stress space that results in acceptable levels of nonuniformities is thus delineated for a given specimen geometry.
D Wijewickreme, YP Vaid
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Geotechnical Testing Journal, 2008
Abstract Quasi-elastic deformation properties of dry, dense Toyoura sand were experimentally investigated by triaxial and torsional shear tests on hollow cylindrical specimens of medium sizes (outer diameter Do=20 cm, inner diameter Di=16 or, 12 cm, and height H=30 cm) and small size (Do=10, Di=6, H=20 cm).
Nguyen HongNam +2 more
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Abstract Quasi-elastic deformation properties of dry, dense Toyoura sand were experimentally investigated by triaxial and torsional shear tests on hollow cylindrical specimens of medium sizes (outer diameter Do=20 cm, inner diameter Di=16 or, 12 cm, and height H=30 cm) and small size (Do=10, Di=6, H=20 cm).
Nguyen HongNam +2 more
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Geotechnical Testing Journal, 2016
Abstract To investigate the effect of the thickness of a hollow cylinder on the stress distributions in a torsional triaxial shear test of clay, an equation for calculating the circumferential shear stress on a cross section of the cyclider is derived based on a linear elastic constitutive model and elastic mechanics.
W.-L. Guo +3 more
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Abstract To investigate the effect of the thickness of a hollow cylinder on the stress distributions in a torsional triaxial shear test of clay, an equation for calculating the circumferential shear stress on a cross section of the cyclider is derived based on a linear elastic constitutive model and elastic mechanics.
W.-L. Guo +3 more
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The Preparation of Hollow Cylinder Specimens from Undisturbed Tube Samples of Soft Clay
Geotechnical Testing Journal, 1990Abstract The use of torsional-hollow cylinder testing apparatus for research into soil stress-strain behavior has grown over the past decade. Most studies have focused on sands or on cohesive materials reconstituted in the laboratory. Studies involving undisturbed soft clay have been neglected, in part due to the difficulties involved in
M Talesnick, S Frydman
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Comparison of True Triaxial and Hollow Cylinder Tests on Cross-Anisotropic Sand Specimens
Geotechnical Testing Journal, 2014Abstract Experiments have been performed in true triaxial equipment and in hollow cylinder equipment on dense Fine Nevada sand to study and compare the influence of the intermediate principal stress on the behavior observed in the two types of apparatuses.
Poul V. Lade, Nina M. Rodriguez
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A Hollow Cylinder Radial-Seepage Apparatus for Evaluating Permeability of Sheared Compacted Clay
Geotechnical Testing Journal, 2018Compacted clay is widely used to control seepage in earth and rock-fill dams in favor of its low permeability. The clay at certain locations of dams often experience large shear strain due to differential settlement, which may lead to changes in seepage ...
Gang Wang, Xing Wei, Ting Zou
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Triaxial Extension Tests on Hollow Cylinder Sand Specimens
Canadian Geotechnical Journal, 1971Triaxial extension tests were carried out on hollow cylinder sand specimens of identical external geometry under identical test boundary conditions. For reference, solid cylinder sand specimens were tested under identical boundary conditions. The radial width of the hollow cylinders was varied and the test parameters of specimen strength and ...
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STUDY OF NATURAL SOIL ANISOTROPY USING HOLLOW CYLINDER TESTS
29th European Young Geotechnical Engineers ConferencePredicting soil response to tunnelling using a TBM remains challenging due to multiple influencing factors, with the choice of the constitutive model playing a critical role.
Abdelilah Errahali +4 more
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A New Slurry-Based Method of Preparation of Hollow Cylinder Specimens of Clean and Silty Sands
Geotechnical Testing Journal, 2013Abstract Given that hollow cylinder testing of undisturbed sand samples is virtually impossible to carry out, a new slurry deposition method is described in this study that allows reconstitution of uniform, saturated hollow cylinder specimens of clean and silty sands deposited under water.
Erdem O. Tastan, J. Antonio H. Carraro
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