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A new hybrid-mixed composite laminated curved beam element

  • Ho-Cheol Lee
  • Jin-Gon Kim
Article

Abstract

In this study, we piesent a new efficient hybrid-mixed composite laminated curved beam element The present element, which is based on the Helhnger-Reissnet vatiational principle and the first-order shear deformation lamination theory, employs consistent stress parameters coriespondmg to cubic displacement polynomials with additional nodeless degrees in order to lesolve the numerical difficulties due to the spurious constraints The stress parameters are eliminated and the nodeless degrees are condensed out to obtain the (6X6) element stiffness matrix The present study also incorporates the straightforwaid prediction of interlaminar stresses from equilibrium equations Seveial numencal examples confirm the superioi behavior of the present composite laminated curved beam element

Key Words

Composite Laminated Curved Beam Element Hybiid-Mixed Formulation Interlaminar Stresses First-order Shear Deformation Lamination Theory Stress Parameters Field Consistency 

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Copyright information

© The Korean Society of Mechanical Engineers (KSME) 2005

Authors and Affiliations

  1. 1.School of Mechanical & Automotive EngineeringCatholic University of DaeguKyongbukKorea

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