Elastoplastic Reanalysis of Plane Truss Applying Repeated Sensitivity Analysis

概要

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Elastoplastic reanalysis of plane truss structures is performed applying the repeated sensitivity analysis procedure considering the element cross-sectional area as design variable. Both structural and sensitivity analyses are performed using the incremental finite element method, and structural reanalysis is performed using the Taylor series expansion method considering up to the third-order sensitivities. The characteristics of elastoplastic reanalysis solution, the application of repeated sensitivity analysis procedure, and the accuracy of the reanalysis method using the Taylor series expansion are examined on plane truss structures. A five-bar and a twenty-eight-bar trusses are considered for analyses. Ill-conditioning that is likely to occur in the estimation of the allowable change in design variable, and the requirement and magnitude of limits on design change are discussed.
社団法人日本船舶海洋工学会の論文
1992-09-04