The Application of Metamodels Based on Soft Computing to Reproduce the Behaviour of Bolted Lap Joints in Steel Structures

  • Julio Fernández-Ceniceros
  • Ruben Urraca-Valle
  • Javier Antoñanzas-Torres
  • Andres Sanz-Garcia
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 239)

Abstract

A promising field of research in steel structures regarding their preliminary design and optimization is the replacement of expensive computational finite element models with more efficient techniques. Without a significant loss of accuracy, new proposals should be able to consider not only the ideal load-displacement response but also relevant failure mechanisms and imprecisions in material properties. The article proposes the use of metamodels based on soft computing as an overall approximation system for structures analysis. This approach has been applied in several fields but, till nowadays, its implementation on structural analysis in early esign seems quite limited to a few theoretical cases. Taking advantage of artificial neural network as global approximation technique, the parameters for more realistic and informative load-displacement curve including nonlinear effects (damage mechanics) are estimated for bolted steel lap joints. Our results demonstrate the accuracy of the metamodel implemented can be close to simulations and also real experimental tests.

Keywords

Artificial Neural Network Metamodel Finite Element Analysis Steel Structure Bolted Lap Joint 

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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • Julio Fernández-Ceniceros
    • 1
  • Ruben Urraca-Valle
    • 1
  • Javier Antoñanzas-Torres
    • 1
  • Andres Sanz-Garcia
    • 1
  1. 1.EDMANS Research GroupUniversity of La RiojaLogroñoSpain

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