Finite element response sensitivity analysis using three-field mixed formulation: general theory and application to frame structures

@inproceedings{Barbato2006FiniteER,
  title={Finite element response sensitivity analysis using three-field mixed formulation: general theory and application to frame structures},
  author={M. Barbato and Joel P. Conte},
  year={2006}
}
This paper presents a method to compute response sensitivities of finite element models of structures based on a three-field mixed formulation. The methodology is based on the direct differentiation method (DDM), and produces the response sensitivities consistent with the numerical finite element response. The general formulation is specialized to frame finite elements and details related to a newly developed steel–concrete composite frame element are provided. DDM sensitivity results are… CONTINUE READING

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