A stochastic model for evolution of creep damage in engineering materials

Roy, Nilima and Ghosh, R N and Bose, S C (2010) A stochastic model for evolution of creep damage in engineering materials. Transactions of the Indian Institute of Metals, 63 (2-3). pp. 665-669.

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In this work a stochastic model for the creep damage evolution and associated scatter has been developed in terms of a discontinuous Markov process. The magnitude of damage has been described in the form of a probability distribution function whose evolution in time characterizes the nondeterministic nature of the damage accumulation process. The model is able to describe the state of damage along with the associated scatter at a given time at any stress level. The validity of the model has been established by comparing the predicted creep curves generated for a specific loading condition with those experimentally obtained for an austenitic stainless steel (Type 316, 18Cr 8 Ni 2Mo).

Item Type:Article
Official URL/DOI:http://www.springerlink.com/content/c7q38743282367...
Uncontrolled Keywords:creep; Damage; Stochastic modeling; Markov process
Divisions:Material Science and Technology
ID Code:2092
Deposited On:17 Dec 2010 15:38
Last Modified:08 Feb 2012 16:40
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