Singh, P K and Ranganath, V R and Tarafder, S and Prasad, Prabha and Bhasin, V and Vaze, K K and Kushwaha, H S (2003) Effect of cyclic loading on elastic–plastic fracture resistance of PHT system piping material of PHWR. International Journal of Pressure Vessels and Piping, 80 (10). pp. 745-752.
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The objective of the paper is to study the effect of cyclic loading on the fracture resistance of the SA 333 Gr.6 carbon steel material of the primary heat transport (PHT) system piping of Indian pressurized heavy water reactors (PHWR). Tests have been carried out on compact tension specimens machined from the pipe used in the PHT system. The effect of load ratio, incremental plastic displacement and loading displacement rate on fracture resistance properties of the material has been studied. The cyclic fracture resistance curve has been compared with the monotonic fracture resistance curve and has been found to vary significantly. A negative load ratio with very low incremental plastic displacement between two consecutive loading cycles, significantly affects the fracture resistance of the material.
|Uncontrolled Keywords:||Cyclic load; Fracture resistance; Pipes; Load ratio; Incremental plastic displacement; Loading displacement rate|
|Divisions:||Material Science and Technology|
|Deposited By:||INVALID USER|
|Deposited On:||17 Nov 2009 10:01|
|Last Modified:||09 Feb 2012 12:44|
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