.... Although different damage mechanisms dominate at R = 0.1 and R = -1, the same degradation of fatigue strength per life decade was found. The variation of longitudinal stiffness and Poisson's ratio during fatigue life (the latter being considered superior to detect delaminations) exhibited load...

... Poisson's ratio is a fundamental material constant arising from the equations of linear elasticity and is a primary input property for finite-element analyses. Elastomers are generally regarded as nearly incompressible materials with Poisson's ratios slightly below 0.5. However, incorporation...

... tensile tests of silicon nitride film are reported. The specimens are 0.5 μm thick, 600 μm wide, and 4 mm long in the gage section. Young's modulus is measured as 255 ± 2.6 GPa, Poisson's ratio is 0.22 ± 0.02, and the fracture strength is 6.42 ±1.11 GPa. thin films Young's modulus Poisson's ratio...

... in the investigation. Experimental results will include measures of the materials' longitudinal and transverse tensile moduli, their Poisson's ratios, and their shear moduli. In addition, the effects of the textile preforms' architecture on laminate tensile strength will also be reviewed. textile reinforced...

... accumulated from two test sites and to present recommended guidelines for the use of these methods. compaction grouting crosshole seismic downhole seismic uphole seismic Poisson's ratio relative density Michael J. Byle, Paul M. Blakita, and Ernest Winter* SEISMIC TESTING METHODS FOR EVALUATION...

... This paper briefly discusses the applicability of laboratory and field test methods commonly used to determine the dynamic moduli and Poisson's ratio of undisturbed soil and rock and soil-rock fill and refuse fill materials. Down-Hole geophysical methods were used to measure dynamic shear...

... of these properties for analyzing pipe deflection, wall thrust and buckling strength are indicated. soil properties stress-strain behavior strength compaction flexible pipe plastic pipe Young's modulus Poisson's ratio bulk modulus constrained modulus deflection buckling wall thrust Ernest T...

... by hydrogen, without measuring the thickness of material tested. ultrasonic testing wave velocity hydrogen attack Young's modulus shear modulus Poisson's ratio carbon steel low alloy steel decarburization microcracks nondestructive tests Takeharu Watanabe, 1 Yuzo Hasegawa, 1and Kazumasa...

... such as stress state and load frequency. α′ includes shear modulus, Poisson's ratio, and hydraulic conductivity of the soil and compressibility and unit weight of the fluid along with frequency of wave loading and a characteristic dimension. The determination of α′ is based on the measurement of pore pressure...

... of the compressive stress-strain curve, modulus, strength, strain to failure, and Poisson's ratio. As a porous specimen was loaded in compression the tangent modulus first decreased due to void collapse and then increased as complete consolidation was approached. Increasing the porosity from 1 to 20% caused...

... modulus Poisson's ratio strength iron-nickel alloy failure evaluation Y. T. Yeow^ In-Plane Behavior of a Ribbon-Reinforced Composite REFERENCE: Yeow. Y. T., "In-Plane Behavior of a Ribbon-Reinforced Composite," Composite Mmeriah: Testing and Design {Sixth Conference). ASTM STP 787. I. M. Daniel...

..., is not what they need or want which is flexural modulus. This paper compares dynamically determined shear modulus G with statically determined flexural modulus E and equates the two moduli through known theoretical equations. From the data generated, the value of Poisson's ratio was determined to be 0.28...

... testing at high temperature are discussed. metal matrix composite SiC/Ti(6-4) low cycle fatigue ultimate tensile strength modulus Poisson's ratio microstructure fiber flaws residual stresses mechanisms composite materials fatigue (materials) R. T. Bhatt^ and H. H. Grimes^ Fatigue...

..., especially if they have a significant osmotic suction component. unsaturated soils soil suction modulus strength repetitive loading unconfined compression laboratory tests psychrometer ceramic plate extractor Poisson's ratio residual strain resonant column test T. B. Edil,' S. E. Motan...

... tested with the apparatus. Sets of curves were constructed to show the effects of variations of sulfur content on the resilient modulus, Poisson's ratio, and temperature susceptibility of the mixes. indirect tension test Poisson's ratio resilient modulus sulfur-asphalt temperature...

... thermal expansion modulus of elasticity stress-strain creep strain compressive strength Poisson's ratio split cylinder tensile strength elevated temperature thermal conductivity thermal diffusivity specific heat temperature distributions rational design simple support continuity axial...

... friction equations were developed based upon effective stresses in the soil, the soil-pile friction factor and the Poisson's ratio of the pile. These equations satisfactorily estimated the distribution of negative skin friction loads mobilized on the piles before they were test loaded and the skin friction...

... characterization. fatigue tests triaxial tests bituminous viscoelasticity resilience dynamic modulus of elasticity Poisson's ratio flexible pavements R. L. Terrel, I L S. Awad, 1 and L. R. Foss ~ Techniques for Characterizing Bituminous Materials Using a Versatile Triaxial Testing System REFERENCE...

... tangent modulus yield strength tensile strength proportional limit Poisson's ratio ductility hardness A. L. Johnson 1 and G. A. Kelsen 2 Stainless Steel in Structural Applications REFERENCE: Johnson, A. L. and Kelsen, G. A., "Stainless Steel in Structural Applications," Stainless Steel...