Abstract
This paper describes procedures for design sensitivity analysis and optimization of nonlinear structural systems with the computer program ADINA. Formulation of the structural optimization problem, design sensitivity analysis with nonlinear response using incremental finite element procedures, and two strategies to use ADINA for design optimization are described. A database and a modem database management system are used to couple ADINA with design sensitivity analysis and optimization modules. Comparison of optimum designs with linear and nonlinear structural responses for trusses with material and geometric nonlincarities are given. More complex structures can be optimized with the developed procedures to fully exploit the capabilities of ADINA.
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