Results 241 to 250 of about 29,704,411 (285)

Sensitivity estimation within first and second order reliability methods

Structural Safety, 1992
Abstract An efficient method to compute the sensitivity of failure probability estimates to changes in distribution parameters is proposed. The method is applicable to failure probability estimates obtained by first and second order reliability methods (FORM and SORM). It is based on the fact that current FORM and SORM approaches require transforming
A. Karamchandani, C.A. Cornell
openaire   +3 more sources

An accuracy analysis method for first-order reliability method

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2018
The first-order reliability method is widely used for structural reliability analysis; however, its accuracy would become worse for nonlinear problems. This paper proposes the accuracy analysis method of the first-order reliability method, which considers the worst cases when using the first-order reliability method and gives the possible value range ...
Zhenzhong Chen, Zihao Wu, Xiaoke Li, Ge Chen, Guangfeng Chen, Liang Gao, Haobo Qiu   +6 more
openaire   +1 more source

Dynamic Reliability Evaluation by First-Order Reliability Method Integrated with Stochastic Pseudo Excitation Method

International Journal of Structural Stability and Dynamics, 2020
The stochastic pseudo excitation method (SPEM), which is based on the principle of pseudo excitation method (PEM), is introduced to represent the randomness of dynamic input in which the amplitude of excitation is adopted as a random variable. Based on the mathematic definition of power spectral density, a physical interpolation of the SPEM is ...
Zhu, Siyu, Xiang, Tianyu
openaire   +1 more source

First-Order and Second-Order Reliability Methods

1995
The need to incorporate uncertainties in an engineering design has long been recognized. The absolute safety of a structure cannot be guaranteed, because of the unpredictability of future loading conditions; the inability to obtain and express the in-place material properties accurately; the use of simplified assumptions in predicting the behavior of ...
Achintya Haldar, Sankaran Mahadevan
openaire   +1 more source

On the first-order third-moment reliability method

Structure and Infrastructure Engineering, 2011
In this article, the reliability evaluation with inclusion of random variable with unknown probability distribution will be discussed, in which the only information of the first three moments of the random variable will be used instead of probability distribution. The second-order polynomial normal transformation technique using the first three central
Yan-Gang Zhao, Alfredo H-S. Ang
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Slope Reliability Analysis Using the First-Order Reliability Method

2012
This chapter pertains to a study on the reliability evaluation of earth slopes under a probabilistic framework. This study is concerned in the first phase with the determination of reliability index and the corresponding probability of failure associated with a given slip surface and then in the second phase with the determination of the critical ...
Subhadeep Metya, Gautam Bhattacharya
openaire   +1 more source

First-order third-moment reliability method

Structural Safety, 1994
Abstract The Hasofer-Lind reliability index method can be directly applied also to cases where asymmetrically distributed random variables enter calculation models. The FOTM method proposed is based on the Hasofer-Lind index and on the third moment of the transformed reliability margin.
openaire   +1 more source

A first order reliability method for series systems

Structural Safety, 2000
Abstract The typical failure mode of a series system with many identical elements is not the same as the typical failure mode of one element of the series system considered alone. This means that using the design point found when studying one element, to calculate the probability of failure of a series system, can lead to strongly biased results.
openaire   +1 more source

A First-Order Reliability Method for Contaminant Detection and Isolation

Impacts of Global Climate Change, 2005
The nation has become increasingly concerned with the vulnerability of water distribution systems following the terrorist attacks of September 11 th . Vulnerability assessments may be used to help identify components of water distribution systems (pipes, junctions, and equipment) that require strengthening against possible attacks.
T. M. Baranowski, E. J. LeBoeuf
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An effective first order reliability method based on Barzilai–Borwein step

Applied Mathematical Modelling, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Wei Zhao, YangYang Chen, Jike Liu
openaire   +1 more source