Fatigue-life prediction by an order statistics treatment of acoustic-emission signals

Journal Article · Wed Sep 01 00:00:00 EDT 1993 · Experimental Mechanics; (United States)

DOI:https://doi.org/10.1007/BF02322571· OSTI ID:5490771

Baram, J ^[1]

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1. Negev Univ., Beersheba (Israel)

A formal relationship is shown to exist between AE amplitudes and fatigue-crack propagation rates, during low-cycle/low-stress cyclic loading, for Al-2024-T3 and Al-7075-T6 alloy sheeting. An analysis of the statistical distribution of external peak amplitudes allows predictions to be made of the number of cycles left until failure within a faint scatter interval and at good confidence level. Such analyses can be conducted nondestructively, by continuous AE monitoring of components and structures, in real time. 30 refs.

• OSTI ID: 5490771
• Journal Information: Experimental Mechanics; (United States), Journal Name: Experimental Mechanics; (United States) Vol. 33:3; ISSN EXMCAZ; ISSN 0014-4851
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
42 ENGINEERING
420500 -- Engineering-- Materials Testing
ACOUSTIC EMISSION TESTING
ACOUSTIC TESTING
ALLOYS
ALUMINIUM ALLOYS
CRACK PROPAGATION
FATIGUE
FORECASTING
FRACTURE MECHANICS
MATERIALS TESTING
MECHANICAL PROPERTIES
MECHANICS
NONDESTRUCTIVE TESTING
TESTING