A Probabilistic 3-D Short-Term Slope Stability Model
A probabilistic model to analyze the three-dimensional stability of earth slopes under short-term conditions is presented. An actual failure case is studied to show the implementation...
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....
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...
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...
Analysis of Bridge Truck Loads
The development of the reliability-based load and resistance factor design (LRFD) methodology requires uncertainties in loads and resistance be quantified. In the load capacity evaluation...
Damage Accumulation Models for Bridges
In the study summarized in this paper the serviceability and ultimate limit states were reviewed for concrete and steel girder bridges. A model is proposed to evaluate strength and remaining...
Research Needs for Rational LRFD Criteria
There are at least a dozen factors causing or influencing impact. Current design specifications consider only a few of these. Location of truck wheel loads within the traffic lanes on...
Recursive Modeling of Dynamic Response of MDOF Systems
The dynamic response of multi-degree-of-freedom (MDOF) systems to correlated multi-input random excitations utilizing recursive modeling is presented. The recursive model is formulated...
Actual Versus Assumed Behaviour of Girder Bridges
It is generally believed that the discrepancies between calculated and actual responses of bridges can diminish, to the point of being nonexistent, with refinement in the method of analysis....
Bridge Repairs?Unexpected Effects on Reliability
There is a significant probability that a bridge will require repairs at some time during its service life. Repairs correcting one deficiency can cause other, unanticipated problems. Awareness...
System Reliability Using Expert Opinion
The objective of the study on which this paper is based was to determine the safe performance of several different interior gas piping systems. This paper describes the piping systems...
An Expert System for Reliability Engineering
The goal in this project is to create an expert system to do failure mode investigations from 'first principles,' or the basic understanding of the way components...
Structure of the Expert FRAMEX System on Fracture Mechanics
The FRAMEX expert system gathers, through independent modules, knowledge analysis techniques to be used by an expert for developing a fracture problem diagnosis. The system includes three...
Experiences with Applications of Importance Sampling in Structural Reliability Computations
This paper presents some experiences and observations relating to the use of importance sampling in structural systems reliability computations. These are presented with three examples,...
Reliability Based Optimal Structural and Mechanical Design
A reliability based optimal design strategy has been developed. Nonlinear limit state functions and nonnormal random variables can be accommodated. For structural systems analysis, a failure...
A Kinematic Approach to Simulation-Based System Reliability Evaluation
System reliability of complex structural engineering systems is often estimated by simulation-based procedures, with failure analysis based on a static (limit state) formulation or a kinematic...
System Reliability Under Time Varying Load
The reliability of ductile and brittle structural systems under time varying loads is investigated. The formulation in the context of outcrossing of a vector process is examined. A new...
Return to search