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Sadhana

, Volume 25, Issue 4, pp 353–365 | Cite as

Nonlinear structural analysis using integrated force method

  • N R B Krishnam Raju
  • J Nagabhushanam
Article

Abstract

Though the use of the integrated force method for linear investigations is well-recognised, no efforts were made to extend this method to nonlinear structural analysis. This paper presents the attempts to use this method for analysing nonlinear structures. General formulation of nonlinear structural analysis is given. Typically highly nonlinear bench-mark problems are considered. The characteristic matrices of the elements used in these problems are developed and later these structures are analysed. The results of the analysis are compared with the results of the displacement method. It has been demonstrated that the integrated force method is equally viable and efficient as compared to the displacement method.

Keywords

Finite element analysis nonlinear analysis force method 

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Copyright information

© Indian Academy of Sciences 2000

Authors and Affiliations

  1. 1.Department of Aerospace EngineeringIndian Institute of ScienceBangaloreIndia

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