Stochastic Modeling of Thermal Fatigue Crack Growth

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ISBN-13:
9783319128764
Einband:
Book
Erscheinungsdatum:
14.02.2015
Seiten:
89
Autor:
Vasile Radu
Gewicht:
330 g
Format:
241x160x11 mm
Serie:
1 1, Algorithms and Computation in Mathematics Applied Condition Monitoring
Sprache:
Englisch
Beschreibung:

The book describes a systematic stochastic modeling approach for assessing thermal-fatigue crack-growth in mixing tees, based on the power spectral density of temperature fluctuation at the inner pipe surface. It shows the development of a frequency-temperature response function in the framework of single-input, single-output (SISO) methodology from random noise/signal theory under sinusoidal input. The frequency response of stress intensity factor (SIF) is obtained by a polynomial fitting procedure of thermal stress profiles at various instants of time. The method, which takes into account the variability of material properties, and has been implemented in a real-world application, estimates the probabilities of failure by considering a limit state function and Monte Carlo analysis, which are based on the proposed stochastic model. Written in a comprehensive and accessible style, this book presents a new and effective method for assessing thermal fatigue crack, and it is intended as a concise and practice-oriented guide for all undergraduate students, young scientists and researchers dealing with probabilistic assessment of structural integrity.
Presents a novel approach, based on systematic stochastic modeling, for assessing thermal fatigue crack growth in mixing tees
Introduction.- Background on stochastic models for cumulative damage process.- Basic mathematical tools for stochastic fatigue analysis.- Stochastic model for thermal fatigue crack growth.- Application.- Conclusions.