Investigation of Utilizing a Secant Stiffness Matrix for 2D Nonlinear Shape Optimization and Sensitivity Analysis

Document Type : Technical Notes

Authors

1 Shahid Rajaee Teacher Training University

2 Faculty of Civil Engineering, Shahid Rajaee Teacher Training University, Tehran, Iran

Abstract

In this article the general non-symmetric parametric form of the incremental secant stiffness matrix for nonlinear analysis of solids have been investigated to present a semi analytical sensitivity analysis approach for geometric nonlinear shape optimization. To approach this aim the analytical formulas of secant stiffness matrix are presented. The models were validated and used to perform investigating different parameters affecting the shape optimization. Numerical examples utilized for this investigating sensitivity analysis with detailed discussions presented.

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Main Subjects

References

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Civil Engineering Infrastructures Journal
Volume 49, Issue 2
December 2016
Pages 347-359

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History

  • Receive Date: 08 January 2016
  • Revise Date: 13 October 2016
  • Accept Date: 18 October 2016

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