Hybrid modelling framework by using mathematics-based and information-based methods

J. Ghaboussi, J. Kim, Amr S. Elnashai

Research output: Contribution to journalConference article

2 Citations (Scopus)

Abstract

Mathematics-based computational mechanics involves idealization in going from the observed behaviour of a system into mathematical equations representing the underlying mechanics of that behaviour. Idealization may lead mathematical models that exclude certain aspects of the complex behaviour that may be significant. An alternative approach is data-centric modelling that constitutes a fundamental shift from mathematical equations to data that contain the required information about the underlying mechanics. However, purely data-centric methods often fail for infrequent events and large state changes. In this article, a new hybrid modelling framework is proposed to improve accuracy in simulation of real-world systems. In the hybrid framework, a mathematical model is complemented by information-based components. The role of informational components is to model aspects which the mathematical model leaves out. The missing aspects are extracted and identified through Autoprogressive Algorithms. The proposed hybrid modelling framework has a wide range of potential applications for natural and engineered systems. The potential of the hybrid methodology is illustrated through modelling highly pinched hysteretic behaviour of beam-to-column connections in steel frames.

Original languageEnglish (US)
Article number012233
JournalIOP Conference Series: Materials Science and Engineering
Volume10
Issue number1
DOIs
StatePublished - Jan 1 2014
Event9th World Congress on Computational Mechanics, WCCM 2010, Held in Conjuction with the 4th Asian Pacific Congress on Computational Mechanics, APCOM 2010 - Sydney, Australia
Duration: Jul 19 2010Jul 23 2010

Fingerprint

Mathematical models
Mechanics
Computational mechanics
Steel
Data structures

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Engineering(all)

Cite this

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Hybrid modelling framework by using mathematics-based and information-based methods. / Ghaboussi, J.; Kim, J.; Elnashai, Amr S.

In: IOP Conference Series: Materials Science and Engineering, Vol. 10, No. 1, 012233, 01.01.2014.

Research output: Contribution to journalConference article

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