Probabilistic assessment method of the non-monotonic dose-responses-Part II: Robustness assessment

Based on the shortcomings of traditional probabilistic assessment methods, an improved probabilistic safety assessment method was proposed, which used Latin hypercube sampling, considered the change process about fatigue crack propagation, as well as the effect of random variables on the failure assessment curve. The paper also analyzed the specific example with this method. The results showed that this method was simpler and more effective, which had some value of applications in engineering.

Download Full-text

Failure of Grass Covered Flood Defences with Roads on Top Due to Wave Overtopping: A Probabilistic Assessment Method

Journal of Marine Science and Engineering ◽

10.3390/jmse6030074 ◽

2018 ◽

Vol 6 (3) ◽

pp. 74 ◽

Cited By ~ 3

Author(s):

Juan Aguilar-López ◽

Jord Warmink ◽

Anouk Bomers ◽

Ralph Schielen ◽

Suzanne Hulscher

Keyword(s):

Assessment Method ◽

Probabilistic Assessment ◽

Wave Overtopping

Download Full-text

Study on Time-Variant Robustness Assessment Method of Complex Bridges

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.250-253.1962 ◽

2011 ◽

Vol 250-253 ◽

pp. 1962-1965

Author(s):

Jin Song Zhu ◽

Jian Song

Keyword(s):

Assessment Method ◽

Haihe River ◽

Strength Factor ◽

Finite Element Software ◽

Structure Degradation ◽

Degradation Rates ◽

Close Relationship ◽

Live Loads ◽

Reserve Strength ◽

Robustness Assessment

In order to accurately assess the robustness of the complex bridge structure, a method of robustness assessment that takes structure degradation and accidental loads into consideration is proposed. Firstly, the degradation rates of member section properties and the increasing rate of live load are set as variables. The parametrical model of structure is established by the finite element software of ANSYS. Secondly, the structure robustness is based upon analysis from the robustness index, the reserve strength factor and the residual strength factor. The effects of three degradation rates of section properties, the established increasing rate of live loads and accidental loads on the robustness of bridges are considered. Finally, this method is used to analyze the time-variant robustness of Guotai Bridge located on the Haihe River of Tianjin. The results indicate that different degradation rates of member section properties have different effect on the robustness of Guotai Bridge, the effect of accidental loads has a close relationship with its acting position.

Download Full-text

Multiple robustness assessment method for understanding structural and functional characteristics of the power network

Physica A Statistical Mechanics and its Applications ◽

10.1016/j.physa.2018.06.117 ◽

2018 ◽

Vol 510 ◽

pp. 261-270 ◽

Cited By ~ 4

Author(s):

Shuliang Wang ◽

Jianhua Zhang ◽

Xin Yue

Keyword(s):

Assessment Method ◽

Power Network ◽

Functional Characteristics ◽

Multiple Robustness ◽

Robustness Assessment

Download Full-text

Research on a probabilistic assessment method based on defective casing safety evaluation criteria in thermal recovery wells

Proceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical Engineering Science ◽

10.1177/0954406214529426 ◽

2014 ◽

Vol 228 (18) ◽

pp. 3462-3470 ◽

Cited By ~ 3

Author(s):

XH Zhu ◽

RQ Sun ◽

H Tong

Keyword(s):

Sensitivity Analysis ◽

Evaluation Criteria ◽

Safety Evaluation ◽

Assessment Method ◽

Thermal Recovery ◽

Von Mises Stress ◽

Probabilistic Assessment ◽

Deterministic Approach ◽

Corrosion Defects ◽

Von Mises

Due to the fact that the complexity of loads and uncertainties of random variables affect the reliability of defective casings, with consideration to the disadvantages of the deterministic approach, in this paper a probabilistic assessment method is employed based on previously established safety evaluation criteria for casings with corrosion defects in thermal recovery wells. In addition, Monte Carlo simulation is proposed to analyze the casing reliability under different remaining strengths. Sensitivity analysis is then performed to rank the influence of various variables for casing failure, and finally the influence law of the main parameters on the maximum Von Mises stress of defective casing is summarized.

Download Full-text