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Showing 1 to 17 of 17 for “"Secant modulus"”.
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Influences of Test Conditions and Mixture Proportions on Property Values of Soil Treated with Cement to Represent the Wet Method of Deep Mixing
… (UU) triaxial compression tests were conducted. Secant modulus of elasticity were determined from bottom platen displacements, deformations between bottom platen and cross bar, and from LVDT's placed directly on the cement-treated soil specimens. Five end-face treatment methods were used for the …
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Effects of extended cycles of open system freezing and thawing on a clay-lime mixture
… days. 4. There was no appreciable difference in secant modulus between two or four day curing of unstabilized specimens, but prolonged curing increased the secant modulus of stabilized specimens. 5. Lime increased the secant modulus of specimens.
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An investigation of the high cycle fatigue behavior of bovine trabecular bone
… 0.0035. Failure was defined as a 10% loss in the secant modulus of the specimen. The data show that the rate of decrease of modulus reduction per cycle increased with increasing normalized stress. A fatigue limit in bovine trabecular bone was not found. While a threshold below which the fatigue …
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Stabilization of non-plastic soils with calcium hydroxide-calcium carbonate mixtures
… increased unconfined compressive strength and secant modulus of elasticity when included as part of the lime stabilizing agent. This effect was most pronounced with soils with a large sand content and low mioa content. A calcium hydroxide-calcium carbonate weight ratio of 3 to 1 was most …
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The effects of fillers on the mechanical properties of polyester resin and a constrained optimization of filler content
… density, tensile strength, ultimate elongation, secant modulus, and flexural strength. Testing was performed according to standard methods using an Instron Universal Testing Machine with strain gage. Contrary to the results of previous investigators, rigid particulate fillers (e.g., clay, marble, …
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Balancing asphalt mixes containing recycled materials for optimum field performance
… and recycled materials, while the strength and secant modulus increase. All AC mixes offered excellent rutting resistance, because they contain high ABR, and the resistance increased with aging as expected. The balanced mix design approach was utilized, based on rut depth and FI, which showed …
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Modular track panels for improved safety in the mining transportation industry
… to determine their change in stiffness and secant modulus. Results show good load distribution of the panels based on deflection and strain measurements. The results are compared to theoretical measurements obtained by using the program, Enercalc, and by also conducting a finite element …
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Stress-strain behaviour of granular soils under monotonic and cyclic loading conditions
… pressure, earth pressure at rest, constrained secant modulus, Young's modulus and Poisson's ratio for the fine, medium and coarse sands were obtained and compared for different conditions. The relationships between vertical and lateral stresses are found and the volume change behaviour of sands …
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A Study of Durability for Elastomeric Fuel Cell Seals and an Examination of Confinement Effects in Elastomeric Joints
… stress tests. Material properties such as secant modulus at 100% strain, tensile strength, and strain at failure were determined using dog-bone samples aged at several different imposed strains and aging times in environments of interest. Tearing energy was evaluated using trouser test …
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Techniques for evaluating the behavior of apple skin under tensile loading
… more important properties obtained were initial modulus of elasticity, secant modulus, tensile strength at break, and Poisson's ratio. The effect of displacement rate and specimen orientation on the strength was investigated. The apple skin was found to be anisotropic, with the maximum strength …
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Biaxial Mechanical Evaluation of Uterosacral and Cardinal Ligaments
… during precon- ditioning/cyclic loading tests, secant modulus of the pre-creep/elastic response, and strain at the end of creep tests were detected in the USLs from the two species along both axial loading directions (the main in vivo loading direction and the direction that is perpendicular to …
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On the Influence of Gamma-Irradiation Sterilisation and Ageing on the Fracture Properties of Ultra High Molecular Weight Polyethylene
… density and oxidation index while the tensile secant modulus linearly increased with density. From these empirical relationships, a model was created which described the variation of the fracture toughness with depth within a UHMW-PE sample. This model indicated that the zones of high density, …
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Load and resistance factor design of cold-formed stainless steel structural members
… has been used in this study for determining the secant modulus, tangent modulus, and plasticity reduction factor. Theoretical basis of the probability-based LRFD criteria and procedures used to calibrate the design provisions are discussed in detail. The resistance factors obtained from the …
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Development of an artificial neural network model to predict expert judgement of leather handle from instrumentally measured parameters
… reading from BLC softness guage, the compression secant modulus and the leather thickness measured under 1 gram load were important to the model. Another network model, termed panel2panel, that predicts the other three attributes "firm", "high density" and "elastic" from the prediction of the …
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Inter-relationship of mechanical and bio-chemical processes governing the settlement of municipal solid waste (MSW) using the (C +H)/L ratio
… as (C + H)/L decreased. The values of the Secant Modulus of Biodegradation, (Secant_{[beta]}) were observed to be directly proportional to the (C + H)/L ratio, varying from 0.0300 to 0.0109. The value for C_{[alpha][beta]} is 0.0340 for Sample A (LT) and 0.0235 for the Humus. Graphical …
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Investigation of the Geotechnical Properties of Municipal Solid Waste as a Function of Placement Conditions
… 1.1 to 0.34 with increasing moisture content. Secant modulus of elasticity was calculated between 1% and 25% strain and ranged from approximately 200 kPa to 4,800 kPa over the range of tested moisture contents. Tangent modulus ranged from 400 kPa to 6,200 kPa between 1% and 25% strain. Both the …
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Enhancing the engineering properties of expansive soil using bagasse ash, bagasse fibre and hydrated lime
… in the compressive strength of 815% and the secant modulus of elasticity from 7.2 MPa to 107.2 MPa; reduced the linear shrinkage of 84% and the free swell potential down to less 0.5%; significantly decreased the swelling pressure from 80 kPa to around 10 kPa (88% reduction) and the …