Kumar, Pawan (2015) Prediction of Fatigue Crack Growth in Part-through Cracked Pipes Using Exponential Model and Gamma Model. MTech by Research thesis.
A pipe installation experiences fluctuating loading condition. It may also experience occasional high amplitude vibration (Seismic Vibration). The monitoring and modelling of fatigue crack growth becomes more significant if the pipes carry hazardous fluids. However
there is no any model available for fatigue crack growth for pipes. The primary objective of the present investigation is to develop a fatigue crack growth model for part-through cracked pipes. The pipes under investigation were of TP316L grade stainless steel. The four point bend test was conducted on pre-cracked specimen (notch angle 45° at the centre) using Instron 8800 machine. All the tests were conducted in air and at room temperature. In the present investigation an attempt has been made to develop a fatigue life prediction
methodology by using an Exponential Model and a Gamma Model for part-through cracked pipes. The predicted results are compared with experimental crack growth data. It has been observed that the results obtained from the two models are in good agreement with experimental data.
|Item Type:||Thesis (MTech by Research)|
|Uncontrolled Keywords:||fatigue crack propagation, part-through cracked pipes, exponential model, gamma model|
|Subjects:||Engineering and Technology > Metallurgical and Materials Science|
|Divisions:||Engineering and Technology > Department of Metallurgical and Materials Engineering|
|Deposited By:||Mr. Sanat Kumar Behera|
|Deposited On:||05 Oct 2015 12:06|
|Last Modified:||05 Oct 2015 12:06|
|Supervisor(s):||Verma, B B and Ray, P K|
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