Technique for direct measurement of effective fatigue threshold of materials

Narasaiah, N and Tarafder, S and Ray, K K (2006) Technique for direct measurement of effective fatigue threshold of materials. Materials Science and Technology, 22 (5). pp. 547-552.

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A new method for studying crack growth behaviour in the fatigue threshold regime is reported here. The method uses a simple rotating bending test set-up, instead of servohydraulic or electromagnetic resonance test systems, to determine the fatigue threshold of structural materials. The reliability of the new technique is demonstrated by determining fatigue threshold of a 0.62%C steel by this technique and comparing the results with those obtained from conventional tests following the procedure of ASTM standard E647. The suggested technique provides higher sensitivity of measurement for crack growth rate and directly gives the fatigue threshold value for the steel that is in good agreement with the effective fatigue threshold determined by conventional tests.

Item Type:Article
Official URL/DOI:DOI: 10.1179/026708306X81441
Uncontrolled Keywords: catigue threshold; crack growth rate; rotating bending machine and steel
Divisions:Material Science and Technology
ID Code:3370
Deposited By:Sahu A K
Deposited On:19 Jul 2011 12:04
Last Modified:06 Feb 2012 11:06
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