Weld Analysis Methods for Aerospace Systems

2004 ◽  
Author(s):  
Robert J. Mulvihill ◽  
Yunnhon Lo
Keyword(s):  
Risk Assessment ◽  
Comparative Analysis ◽  
Structural Analysis ◽  
Probabilistic Risk Assessment ◽  
Strength Model ◽  
Structural Components ◽  
Process Improvements ◽  
Weld Failure ◽  
Analysis Methods ◽  
Aerospace Systems

An example of the application of probabilistic structural analysis to welds is presented below. . The same methodology can be used for probabilistic structural analysis of parent metals in tank structures and other structural components such as supports. The methodology is based on a stress vs. strength model. The results may be used for a comparative analysis of candidate weld process improvements. The model can be incorporated into a probabilistic risk assessment which includes the undesirable impacts of weld failure.

Probabilistic structural analysis methods for select space propulsion system structural components (PSAM)

1988 ◽  
Vol 29 (5) ◽  
pp. 891-901 ◽  
Author(s):  
T.A. Cruse ◽  
O.H. Burnside ◽  
Y.-T. Wu ◽  
E.Z. Polch ◽  
J.B. Dias
Keyword(s):  
Structural Analysis ◽  
Propulsion System ◽  
Structural Components ◽  
Space Propulsion ◽  
Analysis Methods

scholarly journals Seismic Probabilistic Risk Assessment of Nuclear Power Plants Using Response-Based Fragility Curves

2014 ◽  
Author(s):  
Ying-Hsiu Shen ◽  
Yin-Nan Huang ◽  
Ching-Ching Yu
Keyword(s):  
Risk Assessment ◽  
Boolean Algebra ◽  
Seismic Risk ◽  
Nuclear Power ◽  
Power Plants ◽  
Fragility Curves ◽  
Structural Response ◽  
Probabilistic Risk Assessment ◽  
Structural Components ◽  
Probabilistic Risk

Seismic probabilistic risk assessment (SPRA) has been widely used to compute the frequencies of core damage and release of radiation of a nuclear power plant (NPP). In 2011, Huang et al. (2011a, 2011b) published a SPRA methodology with the following characteristics different from the widely used Zion method: (a) seismic fragility curves are defined as a function of structural response parameters, such as floor spectral acceleration and story drift; (b) nonlinear response-history analysis is used to estimate statistical distributions of seismic demands for structural and non-structural components of NPPs; (c) Monte Carlo simulation is used to determine damage states of structural and non-structural components. In the study presented in this paper, the seismic risk of a sample NPP was evaluated using the methodology of Huang et al. (2011a, 2011b). The seismic risk was quantified using the annual frequency of unacceptable performance defined by a sample accident sequence for a sample NPP. The values of seismic risk computed using the methodology of Huang et al. (2011a, 2011b) and Boolean Algebra were compared to evaluate the accuracy and efficiency of the methodology of Huang et al. (2011a, 2011b). The two procedures generate similar risk values and the methodology of Huang et al. (2011a, 2011b) is more efficient than the procedure using Boolean Algebra.

Scientific methodological approaches to the developmentof strategy of sustainable development of territorial communities

2019 ◽  
pp. 71-80
Author(s):  
Olexander Martynyuk ◽  
Inna Studennikova ◽  
Volodymyr Hromozdov ◽  
Victor Maliarevsky
Keyword(s):  
Sustainable Development ◽  
Comparative Analysis ◽  
Empirical Research ◽  
Working Group ◽  
Swot Analysis ◽  
Expert Evaluation ◽  
Analysis Methods ◽  
Methodological Approaches ◽  
Structured Approach ◽  
Developing Strategies

The purpose of the article is to propose methodological assistance to the selfgovernment system in developing strategies for sustainable development of territorialcommunities. Methodology. The research used the works of foreign and domesticspecialists involved in the development of sustainable development strategies.Authors applied methods of scientific comparative analysis, general scientificmethods of theoretical, empirical research and a method of expert evaluation. Scientificnovelty includes clear well-structured approach to identification of what is neededto develop a strategy of territorial communities’ development, important tasks fora working group, SWOT analysis methods, what should be analysed to achievestrategic goals and consistency of organizational details. Conclusions. Complianceto the proposed scientific methodological approaches to the development of thestrategies of territorial communities’ sustainable development enables the communityto obtain a strategic algorithm for its sustainable development.

MATILDA: A Military Laser Range Safety Tool Based on Probabilistic Risk Assessment (PRA) Techniques

2014 ◽  
Author(s):  
Paul Kennedy ◽  
Brian K. Flemming ◽  
David G. Devoy ◽  
Daniel F. Huantes ◽  
Matthew D. Flowers
Keyword(s):  
Risk Assessment ◽  
Probabilistic Risk Assessment ◽  
Laser Range ◽  
Probabilistic Risk
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