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Reliability Based Analysis of Contact Problems
The S.B. Batdorf model is modified to include the reduction in shear due to the effect of compressive stresses on the crack face. This new formulation was used to obtain the probability...

Effects of Random Material Properties and Loads
The variability of slab deflections is estimated from analytical expressions accounting for random variations of spatially distributed loads and material properties (stiffness parameters)....

A Statistical Model for Predicting Fatigue Life of Graphite/Epoxy Laminates
A failure stiffness criterion and a residual stiffness degradation model are proposed from which the statistical distribution of the fatigue life of composite laminates is derived. Experiments...

Simulation with Ordered Discrete-Stochastic Samples
In order to account for the viscoplastic deformations, leading to the failure of structures, the nonlinear dynamic responses can be obtained with convenient spatially discretization schemes....

Stochastic Fem Analysis of Nonlinear Dynamic Problems
This paper deals with the stochastic finite element analysis of nonlinear structural dynamic problems, using Monte Carlo simulation techniques. The stochasticity of those problems arises...

Orthogonal Expansion for Beam Variability
A new method for the solution of problems involving random media is proposed. The medium property is represented by a stochastic process. The method makes use of an orthogonal expansion...

Sensitivity Analysis of Nonlinear Fem
A method of sensitivity analysis is developed for nonlinear structural systems which are governed by incremental finite element equations. The formulation originates in the perturbation...

Reliability of Geometrically Nonlinear Structures
A procedure for first- and second-order, finite-element reliability analysis of geometrically nonlinear structures under static loads is presented. Structures are either linear or nonlinear...

Stochastic Finite Element Analysis of Frames with Flexible Connections
A procedure is proposed in this paper for the stochastic finite element analysis of frames with stochastic connection rigidity. A beam-column element is used to simulate the connection...

Lifetime Reliability of Wood Structural Systems
A model to predict ultimate capacity reliability of wood systems is developed. The model is analogous to Markov cumulative damage models. System ultimate capacity is defined as failure...

Multicriterion Reliability-Based Optimization of Structural Systems
The optimization of nondeterministic structural systems under random loads is currently performed by single-criterion reliability-based optimization methods. However, in structural design...

Reliability of Multistate Structural Systems
The theory of system reliability consists of establishing the relationship between the reliability of a complex system and the reliability of its components. Often, the system and its...

Failure Probability Estimation of Series Systems
In this paper, an approximation scheme is presented for analysis of series structural systems where no exact solution exists. If the safety indices of the individual failure functions...

Probabilistic Design of Offshore Structural Systems
Probabilistic design of structural systems is considered in this paper. The reliability is estimated using first-order reliability methods (FORM). The design problem is formulated as the...

Random Vibration of a Discrete-Distributed System
The stationary response of an arbitrarily complex, classically damped discrete-distributed system subjected to stationary Gaussian white noise is derived. For certain excitations, the...

Response of Structural Systems with Uncertain Parameters: A Comparative Study of Probabilistic and Fuzzy Sets Models
Due to the limitation in space, this paper only presents the conclusions of a study on the response of structures with uncertain properties such as mass, stiffness and damping. In the...

Characteristics of Nonstationary Response of Linear Systems
A new formulation for the statistics of the response of linear systems to nonstationary excitation is developed. Both the process and its envelope are examined and exact statistics are...

Maximum Value Statistics for Transient Response of Linear Structures
The mean and the variance are investigated for the maximum absolute value of a nonstationary process which represents the response buildup of a linear oscillator. The mean and variance...

STOCAL-II-An Instructional Software for Random Vibrations
STOCAL-II (Computer Assisted Learning of STOchastic methods) is an instructional software for teaching random vibrations and applied stochastic processes. It is based on and is an extension...

On Response Spectrum Approach for Nonclassically Damped Structural System
A response spectrum approach to approximate the maximum response of nonclassically damped structural systems is presented. The maximum response is expressed in terms of the sine spectrum,...

 

 

 

 

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