Scattering of ultrasonic wave by cracks in a plate

Journal Article · Tue Jun 01 00:00:00 EDT 1993 · Journal of Applied Mechanics (Transactions of the ASME, Series E); (United States)

DOI:https://doi.org/10.1115/1.2900800· OSTI ID:5975748

Liu, S W; Datta, S K ^[1]

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1. Cooperative Inst. for Research in Environmental Sciences, Boulder (United States)

A hybrid numerical method combining finite elements and the boundary integral representation is used to investigate the transient scattering of ultrasonic waves by a crack in a plate. The incident wave models the guided waves generated by a steel ball impact on the plate. Two surface-breaking cracks and one subsurface crack are studied here. The results show that the location and depth of cracks have measurable effects on the surface responses in time and frequency domains. Also, the scattered fields have distinct differences in the three cases. 13 refs.

• Research Organization: National Aeronautics and Space Administration, Washington, DC (United States)
• OSTI ID: 5975748
• Journal Information: Journal of Applied Mechanics (Transactions of the ASME, Series E); (United States), Journal Name: Journal of Applied Mechanics (Transactions of the ASME, Series E); (United States) Vol. 60:2; ISSN JAMCAV; ISSN 0021-8936
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
42 ENGINEERING
420500 -- Engineering-- Materials Testing
CALCULATION METHODS
CHEMICAL ANALYSIS
COMPUTERIZED SIMULATION
CRACK PROPAGATION
FINITE ELEMENT METHOD
GLASS
NONDESTRUCTIVE ANALYSIS
NUMERICAL SOLUTION
PLATES
SIMULATION
SOUND WAVES
ULTRASONIC WAVES