A general relationship between sintered density and longitudinal ultrasonic velocity is established for porous materials. A good correlation has been obtaiend between elastic moduli and ultrasonic velocity. The values are cmpared with varios theories of ultrasound propagation in materials. It has also ...
Ultrasonic velocity and attenuation determination by laser-ultrasonics Materials are often characterized by measuring the velocity and attenuation of ultrasonic waves. Laser-ultrasonics, which uses lasers for generation and de... JP Monchalin,JD Aussel - 《Journal of Nondestructive Evaluation》 被引量: ...
Simultaneous sound velocity and thickness measurement by the ultrasonic pitch-catch method for corrosion-layer-forming polymeric materials Since thermosetting resins have excellent resistance to chemicals, fiber reinforced plastics composed of such resins and reinforcement fibers are widely us... M Kusano,S...
During the last two decades, ultrasonic testing was developed as an efficient tool for materials characterization. Acoustical waves by their passage through materials, carry out a multitude of information contained in the signal on the mechanical and physical properties of the material under inspection....
A brief review is presented of the calculation of elastic properties in textured metals with a view toward ultrasonic velocity studies. Proceeding from the linearized wave equation for elastic materials, the propagation of elastic waves is analysed from the point of view of plane and curved wavefron...
In this article the author summarizes studies which go some way towards a solution to some of these problems: determinations of fibre type, volume fraction, alignment of a laminate and porosity in the matrix. It was found that velocity measurement gave much information on these properties....
A new ultrasonic apparatus was developed for relaxation measurements of biological materials, and was equipped with two kinds of electric circuits for the resonance method and the pulse method. The frequency range was extended to the lower side by using concave quartz transducers of 3 MHz. The rel...
Ultrasonic Wave Velocity Elastic Stiffness Tensor Trivalent Europium Longitudinal Acoustic Mode Access this article Log in via an institution Buy article PDF 39,95 € Price includes VAT (China (P.R.)) Instant access to the full article PDF. Rent this article via DeepDyve Institutional subscrip...
Velocity measurement by ultrasonic fractography for cracks in glassy polymersExperimental/ fracture toughnesspolymersultrasonic materials testing/ ultrasonic fractographycracksglassy polymersultrasonic tracesfractured surfacespolymethylmethacrylatePMMAtensile load axisABSTRACT Without Abstract...
longitudinal wave velocity m/s VS shear wave velocity m/s E dynamic modulus of elasticity (GPa) μ dynamic Poisson’s ratio t concrete age [days] Vp velocity, km/s V pulse velocity (m/s) L length of travel (m) T effective time (s) g acceleration due to gravity, m/s2 ρ Density...