TY - JOUR
T1 - A novel risk assessment for complex structural systems
AU - Huh, Jungwon
AU - Haldar, Achintya
N1 - Funding Information:
Manuscript received September 07, 2009; revised June 22, 2010; accepted August 15, 2010. Date of publication January 17, 2011; date of current version March 02, 2011. This work was supported by the National Research Foundation of Korea Grant funded by the Korean Government (2009-0077342). Associate Editors: K. B. Misra and A. K. Verma.
PY - 2011/3
Y1 - 2011/3
N2 - Risk management is an essential tool for safe, economical, and efficient design, operation, and maintenance of complex engineering systems. Seismic risk assessment of structures, particularly in nuclear power plants, needs special attention from the reliability community. Available risk assessment methods may not be sufficient to estimate the risk of complex systems made with different materials, numerous ways elements are connected to each other, and excited by dynamic loadings including seismic loading applied in the time domain. A hybrid risk assessment approach is proposed by intelligently integrating the stochastic finite element method, and the response surface method. It is capable of estimating the probability just before failure considering all major sources of nonlinearity and uncertainty, eliminating the deficiencies of the currently available reliability methods. With the help of the illustrative examples, it is shown that the method is robust, accurate, and efficient in estimating risk of complex systems excited by dynamic loadings applied in the time domain.
AB - Risk management is an essential tool for safe, economical, and efficient design, operation, and maintenance of complex engineering systems. Seismic risk assessment of structures, particularly in nuclear power plants, needs special attention from the reliability community. Available risk assessment methods may not be sufficient to estimate the risk of complex systems made with different materials, numerous ways elements are connected to each other, and excited by dynamic loadings including seismic loading applied in the time domain. A hybrid risk assessment approach is proposed by intelligently integrating the stochastic finite element method, and the response surface method. It is capable of estimating the probability just before failure considering all major sources of nonlinearity and uncertainty, eliminating the deficiencies of the currently available reliability methods. With the help of the illustrative examples, it is shown that the method is robust, accurate, and efficient in estimating risk of complex systems excited by dynamic loadings applied in the time domain.
KW - Dynamic response
KW - finite element methods
KW - probabilistic risk assessment
KW - structural engineering
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U2 - 10.1109/TR.2010.2104191
DO - 10.1109/TR.2010.2104191
M3 - Article
AN - SCOPUS:79952192845
SN - 0018-9529
VL - 60
SP - 210
EP - 218
JO - IRE Transactions on Reliability and Quality Control
JF - IRE Transactions on Reliability and Quality Control
IS - 1
M1 - 5688471
ER -