... directions. Examples of these measurements in a calibration chamber and a pavement subgrade are presented. embedded geophones field measurements permanent arrays shear wave velocity compression wave velocity shear modulus constrained modulus calibration chamber pavement subgrade K e n n e t...

... described and shown to compare well with theoretical predictions. nondestructive testing in situ measurement seismic waves shear modulus offshore geophysical methods SASW testing Stephen G. Wright, 1 Kenneth H. Stokoe, II,2 and Jose M. Roesset3 SASW MEASUREMENTS AT GEOTECHNICAL SITES OVERLAID...

... of frequencies at different strain levels are presented. Results show that the dynamic shear modulus of samples tested by the resonant column was always greater than the dynamic shear modulus of the same samples tested at lower frequencies in torsional shear. To confirm that the increase in shear modulus...

... batch of sand, and published predictions of G max . Finally, the Ottawa sand results and, results from selected in situ samples are presented. resonant column shear modulus damping ratio effective confining pressure modified pressure chamber Ottawa Sand deep soil deposits Kenneth O...

... composite material systems are discussed and procedures for reliable shear property measurements recommended. Iosipescu specimen shear modulus graphite-epoxy woven fabric particulate composite sheet molding compound (SMC) moiré interferometry Henjen Ho, 1. Haryanto T. Budiman, l? Ming-Yi Tsai...

... Considering only cubic symmetry (three independent monocrystal elastic-stiffness coefficients, C ij ), we review various models for converting the C ij to the effective macroscopic quasiisotropic and homogeneous elastic constants, usually taken as B, the bulk modulus, and G, the shear modulus...

... Low-strain shear moduli of lightly cemented sand can be obtained by testing specimens in a resonant column. In the literature a variety of techniques have been suggested for coupling the sample to the base and cap of the device. These studies' results suggest that the shear modulus of cemented...

... are the only laminates that must use an internal release agent, the effects of this are explored to show the validity of the technique. pultrusion fracture energy shear torsion release agents shear modulus anisotropy John O. Outwater 1 The Torsional Failure and Fracture Energy in Shear...

... The off-axis and ±45° axial tests are not only effective but also low cost methods for the determination of in-plane shear modulus in individual unindirectional lamina, because they avoid the difficulties of producing a pure state of shear stress experimentally. Possible test approaches for more...

... 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...

... The results of a series of self-boring pressuremeter tests (SBPT) carried out in the quaternary Po river sand are presented. Assessment of total horizontal in situ stress, shear modulus and shear strength, of the tested sand is discussed. Comments on the use of the above mentioned parameters...

.... pressuremeter test finite element method elasto-plasticity strain-hardening cyclic loading shear strength shear modulus 12 Francois M. Lassoudiere , Francois B. Zanier NUMERICAL ANALYSIS OF PRESSUREMETER TESTS BY THE FINITE ELEMENT METHOD REFERENCE: Lassoudiere, F. M., Zanier F. B., "Numerical Analysis...

... The self-boring pressuremeter offers a particular advantage in that it can be installed in the ground with minimal disturbance. The loading stage of a pressuremeter test in sand has been analysed previously in terms of the shear modulus, angle of friction, angle of dilation and the initial...

... to be significant for the soft, highly plastic clay samples tested. A method for correlating the shear modulus G max with undrained shear strength s u for these very soft sediments is proposed. marine clay marine geology shear strength Mississippi Delta sediments cyclic response backbone curve shear...

... 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...

... Dynamic mechanical spectroscopy continues to emerge as an effective laboratory instrument to analytically examine and characterize the molecular structure of polymers. Its value to the applications designer or engineer, however, has been rather limited. What it provides best, shear modulus...

... Normalized stress-strain curves are obtained by use of maximum shearing stress to normalize shear stress and reference strain to normalize shear strain. Reference strain is defined by initial tangent shear modulus and maximum shearing stress. This paper defines initial tangent shear modulus...

... equipment sand shear modulus shear strength shear tests C. C. Ladd' Discussion on Laboratory Shear Devices REFERENCE: Ladd, C. C , "Discassion on Laboratmy Shear Devices," Laboratory Shear Strength of Soil, ASTM STP 740, R. N. Yong and F. C. Townsend, Eds., American Society for Testing and Materials...

... presented in the literature. The test is simple and fast, with no requirement for elaborate instrumentation or setup. Moreover, the test is applicable for measuring the shear moduli at room temperature, cryogenic temperatures, and elevated temperatures. composite materials testing shear modulus...

... downhole method dynamics field tests geophysical prospecting seismic investigations seismic waves shear modulus shear wave velocity torsional source triggering soils R. J. Hoar' and K. H. Stokoe IP Generation and Measurement of Shear Waves In Situ REFERENCE: Hoar, R. J. and Stokoe, K. H., II...