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Volume 41 Issue 2
Feb.  2015
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Journal of Beijing University of Aeronautics and Astronautics  > 2015  >  41(2): 198-202.
MA Xiaobing, REN Hongdao, CAI Yikunet al. Time-varying response surface method for high-temperature structural reliability analysis[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(2): 198-202. doi: 10.13700/j.bh.1001-5965.2014.0142(in Chinese)
Citation: MA Xiaobing, REN Hongdao, CAI Yikunet al. Time-varying response surface method for high-temperature structural reliability analysis[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(2): 198-202. doi: 10.13700/j.bh.1001-5965.2014.0142(in Chinese)
shu

Time-varying response surface method for high-temperature structural reliability analysis

doi: 10.13700/j.bh.1001-5965.2014.0142
  • 1.

    School of Reliability and Systems Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • 2. Key Laboratory of National Defense Technology for Reliability & Environment Engineering Technology, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 21 Mar 2014
  • Publish Date: 20 Feb 2015
    Abstract
  • The constitutive equation and carrying capacity of structure will change over time under high temperature conditions. The traditional structural reliability models are inefficient to solve these time-varying structural reliability problems. A time-varying response surface method with thermal response and response threshold value changing over time was proposed. The method can be used for high-temperature structural reliability analysis. Combined with Box-Behnken experimental design, a cross quadratic function of structure's basic variables and time was introduced for establishing a time-varying model of the thermal structural response. The function of structural response threshold value and time was established by using temperature as intermediate variable. The time-varying structural reliability calculation method was proposed when basic variables are normally distributed. A study case was given to demonstrate the applicability of this method and its greatly enhanced effectiveness besides accuracy.

     

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