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Response Variability of Isolated Structure Due to Randomness of Isolation Devices
Effect of randomness of restoring characteristics of an isolation device, which is considered to result from the randomness of material properties, configuration and setting error, on...

Higher Moments Descriptions of Uncertain Quantities in the Analysis of Structural Components
Maximum-entropy and asymptotic models for probability densities with application to the uncertain behavior of a structural component are considered. In particular, they are studied with...

System Identification Methods for Fault Detection and Diagnosis
Faults refer to any unexpected changes or modifications of existing structures resulting from extreme loads or other abnormal loading and environmental conditions. Such faults may effect...

Identification of Power Spectra?Linear and Nonlinear Approaches
Linear dynamical filter systems driven by white noise can be used for the generation of stationary and Gaussian processes. A linear approximation method proposed by W. Wedig is presented...

Application of Probabilistic Approach for Crack Growth Damage Accumulation in Metallic Structures
Two stochastic crack growth approaches (i.e., 'general' and 'analytical') are presented and evaluated for predicting the crack growth...

Reliability Analysis of Weldings Considering Defects
The welds generally represent the most critical part of large structural systems, i.e. offshore structures. Hence they affect significantly the structural reliability. A realistic model...

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...

Damage Process of Composite Material with Randomly Oriented Fibers
A numerical procedure is formulated to make clear the damage process of composite materials with randomly oriented fibers. These composites often have complicated fiber oriented states,...

The Effects of Thermal Variation in Fracture Toughness
Environmental temperature changes produce cyclic and thermal stresses in cylindrical structures. The probability of failure defined as the chance that a crack, growing under the influence...

A Computationally Efficient Solution Procedure for Stationary Two-State Problems in Stochastic Mechanics
A numerical procedure is presented for the solution of stationary two-state Markov process problems with a single source. The proposed solution method combines finite element and finite...

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...

On the Application of Conditional Integration in Structural Reliability Analysis
An accurate, and efficient computational procedure is proposed for structural reliability analysis. The suggested advanced Monte-Carlo simulation utilizes the concept of conditional integration...

Structural Reliability of Wood Beam-Columns
A formulation for reliability-based design procedures of wood columns and beam columns is presented. The load carrying capacity of these structural members is obtained using a non-linear...

Probabilistic Approach to Stress Distributions for Orthotropic Wood Plates
Probabilistic approach to the stress distributions of an orthotropic wood plate is discussed. The stress distributions for the orthotropic elastic media are fully dependent of the material...

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...

Probabilistic Traffic Load Models and Extreme Loads on a Bridge
This paper contains a summary of the intensive traffic measurements collected in France and Europe, and of the probabilistic distributions adopted for the main parameters. The evaluation...

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...

Redundancy Evaluation of Steel Girder Bridges
The focus of this paper is on the use of redundancy measures in the evaluation of bridge systems. The emphasis is on the definition of system redundancy measures suitable for use by bridge...

Comparison of a Practical Fragility Analysis of a Reactor Building with Non-Linear Monte Carlo Simulation
There are several conventional methods to assess seismic safety of nuclear power plants practically. In these methods, non-linear effect of the structural elements is considered with an...

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...

 

 

 

 

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