This work presents a rigorous formalism based on the integration of the time-averaged radial power flow density to derive analytically and calculate numerically the acousto-elastic radiation force induced by compressional (P) and shear (S) plane standing waves incident upon a circular elastic cylinder...
Seismicity and high-resolution aeromagnetic data are used to define an abrupt change from compressional to extensional tectonism within a 10- to 15-km-wide... ML Zoback,RC Jachens,JA Olson - 《Journal of Geophysical Research Solid Earth》 被引量: 76发表: 1999年 Metal-complex formation in con...
Mow, Scattering of plane compressional waves by a sperhical obstacle, J. of Appl. Mech., Vol. 34, 493–499, 1963. MATH MathSciNet Google Scholar G. Johnson and R. Truell, Numerical computations of elastic scattering cross sections, J. of Appl. Physc., Vol. 36, 3466. Google Scholar...
Reflection of compressional and Rayleigh waves on the edges of an elastic plate with quadratic nonlinearity Previous ultrasonic studies have demonstrated that measurements of material nonlinearities can provide a means for detecting early signs of fatigue damage ... TB Autrusson,KG Sabra,MJ Leamy - ...
(A) Compressional wave velocity of silicate glasses as a function of pressure. The data are plotted using the following studies: Zha et al. (1994, Z94; silica glass); Yokoyama et al. (2010, Y10; silica glass); Sanchez-Valle and Bass (2010, SV10; enstatite glass); Sakamaki et al....
The propagation of nonlinear compressional waves in a one-dimensional granular chain driven at one end by a harmonic excitation is studied. The chain is described by a Fermi-Pasta-Ulam (FPU) lattice model with quadratic nonlinearity (α-FPU model), valid for strong initial compression of the ch...
The article attempts to evaluate the effects of different geogrid installation.Based on the soil parameters determined by triaxial compressional shear tests,a finite element analytical model of geogrid reinforced soft-soil foundation is established.Using the model,the force applied on the geogrid reinforce...
of a vibrating bar at 500 kHz to determine the dynamic Young’s modulus. The seismic pulse method uses piezoelectric transducers to emit pulses of compressional and shear waves and measures the travel times. The relationships between elastic moduli and Vsand Vpare as expressed by Eqs. (15–18...
Some studies on the property changes of heat-treated rocks have been reported, mainly focusing on the density, porosity, permeability, compressional wave velocity, strength and modulus4,5,6,15,16,17,18. The types of rocks studied include sandstones4,5,6,19, granite15,16,17, Marble6 and li...
Analyzing this equation, it is shown that lateral waves can propagate in the beam only when the axial force in the beam is larger than a 'cut-off compressional force'. The critical (resonance) velocities of a uniformly moving constant and harmonically varying load are determined as functions ...