Simple modeling of ultrasonic beam incidence in immersion testing

Journal Article · Thu Jun 01 04:00:00 EDT 1995 · Materials Evaluation

OSTI ID:87371

Furukawa, Takashi; Yotsuya, Gouki; Date, Kazuhiro ^[1]

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1. Tohoku Univ., Sendai, Miyagi (Japan). Dept. of Materials Processing

Ultrasonic wave generation and propagation were modeled to simulate ultrasonic immersion testing. A ray model was used for the modeling. Actual sound pressure distribution of the incident wave from an immersion type probe was analyzed using an ultrasonic visualization method to include the actual sound pressure distribution in the model. In this model, sound pressure is expressed as the density of the ray. The change of sound pressure of each refracted ray at the water/specimen boundary was calculated using the refraction coefficients for the ultrasonic beam. The refraction angle and mode-conversion of the ray follow Snell`s law. Simulation results on the incidence of beams at the flat boundary and the curved boundaries in immersion testing are compared with actual experimental results obtained using the ultrasonic visualization system.

• OSTI ID: 87371
• Journal Information: Materials Evaluation, Journal Name: Materials Evaluation Journal Issue: 6 Vol. 53; ISSN MAEVAD; ISSN 0025-5327
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
COMPUTERIZED SIMULATION
DEFECTS
MATHEMATICAL MODELS
NONDESTRUCTIVE TESTING
REFLECTION
REFRACTION
ULTRASONIC TESTING
ULTRASONIC WAVES
WATER
WAVE PROPAGATION