Sensitivity Techniques for Nonlinear Finite Element Method




Fielder, Randal Wesley

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Interest in sensitivity analysis has been growing in recent years. With the increasing dependence on preliminary computational simulation the need for fast and accurate sensitivity analysis will increase into the future. By employing sensitivity analysis techniques, engineers can gain insight on the effect that changes to input parameters will have to the overall performance of their designs. Increasingly the finite element method has been employed for these preliminary designs and it has proven to be a highly accurate method with a great variety of technical applications. By extending the nonlinear finite element method to the complex domain a means to determine sensitivities directly from the nonlinear finite element method analysis is provided. The use of sensitivity analysis is being employed as a means to increase not only the economy, but also the overall performance and safety of designs.


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Civil and Environmental Engineering