Influence of reference defect geometry, beam angle, and frequency on shear wave ultrasonic test sensitivity

Journal Article · Sun Feb 01 00:00:00 EST 1976 · Mater. Eval.; (United States)

OSTI ID:7347742

Ammirato, F V

The sensitivity of an ultrasonic shear wave inspection is adjusted by setting the instrument gain control to obtain a specified echo amplitude from a reference defect placed in the part to be tested or in an equivalent calibration block. The size and shape of the reference defect are governed by the applicable material specification. Side-drilled holes, V-notches, and rectangular notches are commonly used for this purpose. The test sensitivity is strongly affected by the reference defect geometry, incident shear wave angle and the frequency. Usually, these parameters are not rigidly specified but are only required to be inside a range of values. The wide variation in test sensitivity than can be obtained by varying these parameters within the range permitted by material specifications is demonstrated.

• Research Organization: General Electric Co., Schenectady, NY
• OSTI ID: 7347742
• Journal Information: Mater. Eval.; (United States), Vol. 34:2
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
ULTRASONIC TESTING
SENSITIVITY
DEFECTS
GEOMETRY
ACOUSTIC TESTING
MATERIALS TESTING
MATHEMATICS
NONDESTRUCTIVE TESTING
TESTING
420500* - Engineering- Materials Testing