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Stochastic Propagation of Semi-Elliptical Surface Cracks
Random propagation of a semi-elliptical surface crack is investigated as a bivariate stochastic process. Under a few assumptions, a probability distribution of the surface crack propagation...

Two Principles for Data Based Probabilistic System Analysis
A major problem in probabilistic system analysis is to find a self-consistent method of inference about probabilities based on a random sample of system state variables. Such a method...

Development of a Deep Knowledge Based Expert System for Structural Diagnostics
The paper tackles development of a structural reliability expert system, the basic goal of which is to improve current possibilities for structural safety and reliability analysis of critical...

Knowledge Representation and Reasoning in Structural Reliability Assessment Expert Systems: Implementation in the Leak-Before-Break Prototype System
Knowledge representation and reasoning, considered of a major importance for building and practical application of the structural reliabilty assessment expert systems, are the issues tackled...

Development of Reliability-Based Integrated Design-Construction Quality Assurance System of Penstock
A more rational design-construction quality assurance system is proposed by applying the concepts of the reliability-based design methods. By applying this system, the design level of...

Limit States Reliability Interaction in Optimum Design of Structural Systems
A multiobjective optimization approach to deal with structural reliability-based design under multiple limit states is developed. This approach resolves the limit states reliability interaction...

Structural Optimization Based on Component-Level Reliabilities
A minimum-weight optimum design procedure is proposed including the reliabilities of various elements in a structure as constraints. The reliability indices corresponding to the various...

Safety Plans for Buildings, Structures and Technical Facilities
Safety is an important quality feature and depends on all activities within the building process. The safety concept must therefore consider all phases of the building process, from the...

Secure Landfills: Reliability-Based Analysis and Design
A framework is outlined for reliability-based analysis and design of secure landfills. Reliability, R, is the estimated probability landfill leakage, Ql, is below an allowable limit, Qf;...

Lifetime Behavior of Wood Structural Systems
Reliability based design of wood structural systems requires knowledge about the lifetime behavior of the system. The 50 year lifetime behavior of wood floors and flat roofs was examined...

Optimal Strategies for Design, Inspection, and Repair of Fatigue-Sensitive Structural Systems Using Risk-Based Economics
The fatigue reliability and maintainability process for a marine structure (caisson platform) is studied. Reliability analysis, performed by Monte Carlo, quantifies the improvement in...

Damage Assessment Based on Repairability Criterion
This paper discusses the assessment of damage of protective structures based on the repairability criterion. The variables of the repairability are the amount of repair, repair cost, repair...

Damage Assessment of Bridge Structures by System Identification
A method for the damage estimation of bridge structures under seismic ground excitation is developed based on system identification approach. The dynamic behavior of a damaged structure...

Seismic Reliability Analysis for Elevated Pressure Vessels
This paper presents two approaches for assessing the seismic reliability of elevated pressure vessels. A discretized mass mechanical system is used to model the dynamic effects of liquid...

Recent Seismic Risk Studies of Nuclear Power Plants: An Overview
Seismic probabilistic risk assessments (PRA) are conducted to estimate the frequencies of occurrence of severe core damage, serious radiological releases, and consequences in terms of...

Probability Based Bridge Safety Analysis
Traditional methods of quantifying safety of highway bridges have been associated with deterministic analysis. However, ascertaining the true measure of safety, or reliability, should...

Reliability Assessment and Reliability-Based Rating of Existing Road Bridges
A practical reliability model for the safety assessment and rating of existing R.C. bridges are developed by explicitly incorporating the degree of deterioration and damages based on available...

Research on Structural System Reliability of Cable-Stayed P.C. Railway Bridge Across Hong-Shui River
This paper analyses the structural system reliability of cable-stayed bridge by using the modified all failure modes. The concept of the structural subsystem is used to help the selection...

The Nessus Software System for Probabilistic Structural Analysis
The Probabilistic Structural Analysis Methods (PSAM) project developed at SwRI integrates state-of-the-art structural analysis techniques with probability theory for the design and analysis...

Incremental Assembly Stage Concepts for Space Station Freedom: Structural Design and Verification
The design and development of the U.S./International Space Station Freedom poses extreme technical and management challenges to the NASA/industry team. A comprehensive system engineering...

 

 

 

 

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