experimental and simulation studies
Mário Santos (Avtor), Jaime Santos (Avtor)

Povzetek

This work evaluates the ultrasonic scattering attenuation of structures with complex scatterer distributions via experimental and simulation studies. The proposed approach uses experimental attenuation knowledge to infer the scatterer size and its concentration in the studied structures, which are important for the effective construction of simulated models. The MATLAB k-Wave toolbox has been used to implement the simulator. Several cast-iron samples have been used to demonstrate the importance of simulation in the characterization of such structures. First, the scattering attenuation was evaluated using the Truell and Papadakis models, and then the results were compared with experimental ones. Emphasis was given to the Papadakis approach because it takes into account the scatterer size distribution. It is demonstrated that both analytical models provide results that are far from the experimental ones. The developed simulator for the studied samples led to a predictive model, in which the attenuation was proportional to the fifth power of the scatterer size, and the corresponding formulation is close to the one proposed by the analytical models.

Ključne besede

modelling;anisotropy;pulse-echo;simulation;ultrasonic attenuation;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL FS - Fakulteta za strojništvo
UDK: 620.179.16
COBISS: 69927171 Povezava se bo odprla v novem oknu
ISSN: 0039-2480
Št. ogledov: 345
Št. prenosov: 60
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarni naslov: Slabitev ultrazvočnih valov v nodularni litini z razpršitvijo: eksperimentalna študija in simulacija
Sekundarne ključne besede: modeliranje;anizotropija;impulzna ultrazvočna metoda;simulacija;slabitev ultrazvoka;
Vrsta dela (COBISS): Članek v reviji
Strani: str. 245-255
Letnik: ǂVol. ǂ67
Zvezek: ǂno. ǂ5
Čas izdaje: May 2021
DOI: 10.5545/sv-jme.2020.7078
ID: 13130071
Priporočena dela:
, experimental and simulation studies
, diplomsko delo Visokošolskega strokovnega študijskega programa I. stopnje Strojništvo
, zaključna naloga Univerzitetnega študijskega programa I. stopnje Strojništvo - Razvojno raziskovalni program