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A Method of Structural Optimization Based on Structural System Reliability*

64 citations0/0 files storedMechanics Based Design of Structures and Machines

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Probabilistic and Robust Engineering Design Reliability and Maintenance Optimization Structural Integrity and Reliability Analysis

Abstract

An optimality criterion based on structural system reliability is presented for optimizing component sizes to satisfy a system reliability constraint. In this paper, optimality criteria and iterative formulas are developed. Some results in reliability optimization are presented and illustrated. An incremental loading approach is adopted for identifying failure modes and computing system reliability. For a number of illustrative examples, optimal designs were obtained within 3 to 5 iterations. With the aid of several examples, optimal weight characteristics of statically determinate and statically indeterminate structures are explained. These structures are loaded under both a single group of loads and different groups of loads.

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References

1979Narrow Reliability Bounds for Structural Systems 1982Structural Reliability Theory and Its Applications 1967Bounds on the Reliability of Structural Systems 1974Reliability of Structural Systems 1977Structural system reliability and optimization

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