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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...

Diffusion Models of Fatigue Crack Growth with Sequence Effects Due to Stationary Random Loads
A new fatigue crack growth model that includes load sequence effects is formulated. This model includes a load history dependent parameter, the reset stress, which reflects the state of...

Analysis of Fatigue Crack Propagation Under Random Loading by Markov Chain
Fatigue crack propagation is simulated in terms of a discrete Markov process considering both the randomness of crack propagation resistance and the randomness of external loading, which...

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...

Open World Problems in Structural Reliability
A closed world model represents total knowledge about everything in a particular system. An open world model represents partial knowledge where some things are known to be true, some are...

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...

Reliability Analysis for Nonlinear Limit States
An analytical procedure, incorporating individual probability distributions of random variables, is proposed for generating moments of any arbitrary order for the nonlinear limit state...

Utility of Reliability Index for Structural Design
Relations between design results, such as configurations, and the reliability indices, in accordance with the Advanced First Order Second Moment (AFOSM) method, are numerically investigated...

Reliability Study of Ferrocement Slabs Under Cyclic Loading
A simple probabilistic approach to fatigue strength studies for ferrocement slabs is presented: A preliminary experimental program to obtain the relevant statistics was conducted and the...

Structural Safety and Satisfaction
The mathematical program of a cost extremum constrained by safety, functional and other statements is a comfortable image of design. In this paper the various components of this program...

Application of Fuzzy-Bayesian Analysis to Structural Reliability
The purpose of this study is to develop a fuzzy-Bayesian reliability approach for the decision of proper inspection schedule to maintain structural integrity. According to this approach,...

Lifetime-Maximum Load Effect for Highway Bridges Based on Stochastic Combination of Typical Traffic Loadings
An efficient and accurate method is proposed for probabilistic assessment of lifetime maximum load effect on highway bridges caused by traffic load. Probability distribution of the lifetime...

The N-Year Maximum Mean Values and the Coefficients of Variation of Loads Subjected to Port and Offshore Structures
It is necessary to know mean values and coefficients of variation of loads in order to verify the safety of structures. In this paper, the N-year maximum mean values and the coefficients...

Extraordinary Live Load Model in Retail Premises
Based on a live load survey on six supermarkets, the probabilistic nature of sustained live loads and simulated extraordinary live loads were examined. The simulation was performed to...

Probabilistic Models for Loads Due to Bulk Solids
This paper presents two probabilistic models for loads due to bulk solids. One model seeks to obtain an accurate presentation of the loads; the model is used as a basis for a systematic...

Load Modelling for Single Story Steel Buildings
Realistic load assumptions for single story buildings are thus far complicated by the insufficient state of the modelling of individual loads as random variables or stochastic processes...

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...

Probabilistic and Reliability Analysis of Asphalt Concrete Airfield Pavements
A procedure was developed to analyze layered elastic asphaltic concrete airfield pavement systems in terms of probability and reliability. Rosenblueth method is used to estimate the expected...

Optimization of Structures Under Stochastic Loads
A method for design under multiple stochastic loads based on optimization is developed. The objective function such as cost is minimized under the constraint that the probabilities 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...

 

 

 

 

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