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Analysis of Complex Structures Coupling Variable Kinematics One-Dimensional Models

[+] Author Affiliations
Erasmo Carrera

Politecnico di Torino, Turin, ItalyRMIT University, Melbourne, Australia

Enrico Zappino

Politecnico di Torino, Turin, Italy

Paper No. IMECE2014-37961, pp. V001T01A023; 8 pages
doi:10.1115/IMECE2014-37961
From:
  • ASME 2014 International Mechanical Engineering Congress and Exposition
  • Volume 1: Advances in Aerospace Technology
  • Montreal, Quebec, Canada, November 14–20, 2014
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4642-1
  • Copyright © 2014 by ASME

abstract

One-dimensional models are widely used in mechanical design. Classical models, Euler-Bernoulli or Timoshenko, ensure a low computational cost but are limited by their assumptions, many refined models were proposed to overcome these limitations and extend one-dimensional models at the analysis of complex geometries or advanced materials. In this work a new approach is proposed to couple different kinematic models. A new finite element is introduced in order to connect one-dimensional elements with different displacement fields. The model is derived in the frameworks of the Carrera Unified Formulation (CUF), therefore the formulation can be written in terms of fundamental nuclei. The results show that the use variable kinematic models allows the computational costs to be reduced without reduce the accuracy, moreover, refined-one dimensional models can be used in the analysis of complex structures.

Copyright © 2014 by ASME
Topics: Kinematics

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