DETECTION OF FATIGUE CRACK INITIATION IN TITANIUM ALLOY UNDER SINGLE-EDGE-NOTCH (SEN) SPECIMEN BY ACOUSTIC EMISSION PROCEDURE

J. Cappele, C. Casavola, C. Pappalettere, C. I. Pruncu

Abstract

The characterization of material behavior is one issue which may be exemplified made diverse method like theoretical or experimental procedures. The experimental procedures could be done by destructive, partial destructive or nondestructive methods. In this way recording the mechanical responses of material during the cyclic loading, using Acoustic Emission (AE) device, provide for us effectiveness guaranty in application of nondestructive technique to description of fatigue life of metal. In this context determination of fatigue initiation in titanium alloy using AE technique represent one remarkable challenge.

Keywords

Acoustic Emission technique, notch analysis, fatigue crack initiation life, Finite Element Method

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DOI

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IMEKO TC

TC15 - Experimental Mechanics

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