Crack Tip Damage Mechanism under Monotonic and Cyclic Loading Conditions

Roy, Himadri and Sivaprasad, S and Tarafder, S and Ray, K K (2009) Crack Tip Damage Mechanism under Monotonic and Cyclic Loading Conditions. Key Engineering Materials , 417-418 (8). pp. 105-108.

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Fracture resistance of AISI 304LN stainless steel has been examined by monotonic and cyclic J-integral tests, the latter being carried out using periodic unloading as per pre-determined R-ratio. The cyclic fracture resistance is found to be almost 1/5th of its corresponding monotonic value. The deterioration of fracture resistance under cyclic loading has been attributed to crack tip resharpening due to smearing and smashing of voids owing to rubbing of adjacent crack surfaces in the compressive load cycles.

Item Type:Article
Official URL/DOI:http://10.4028/
Uncontrolled Keywords:AISI 304LN Steel, Cyclic J, Fracture Toughness, Monotonic J, Scanning Electron Microscopy (SEM) Himadri Roy, S. Sivaprasad, S. Tarafder, Kalyan Kumar Ray
Divisions:Material Science and Technology
ID Code:1306
Deposited By:Dr. A K Sahu
Deposited On:26 Jul 2010 10:58
Last Modified:08 Feb 2012 16:39
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