ENGLISH

Stochastic Modeling of Thermal Fatigue Crack Growth

By Vasile Radu (auth.)

Book information

Publisher
Springer International Publishing
Year
2015
ISBN
978-3-319-12876-4, 978-3-319-12877-1
DOI
10.1007/978-3-319-12877-1
Language
english
Format
PDF
Filesize
3 MB (2916303 bytes)
Series
Applied Condition Monitoring 1
Edition
1
Pages
90\96
Time added
2015-02-17 02:00:00
Continuum Mechanics and Mechanics of Materials; In

Description

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.

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