Incremental sequentially linear analysis of a notched beam

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1 Citation (Scopus)

Abstract

Incremental Sequentially Linear Analysis (ISLA) is a new algorithm for non-linear finite element analysis. It is an extension of Sequentially Linear Analysis (SLA) which has been applied since 2001 as an alternative to the Newton-Raphson method when bifurcation, snap-back or divergence problems arise. ISLA is an incremental procedure with an implicit scheme, which starts and ends with an equilibrium state. The solution search path fol-lows damage steps sequentially with secant stiffness. In each iteration only one element is selected for damaging in the next iteration, which is a similar procedure as used in SLA. In this paper, ISLA is explained and demonstrated for a notched beam test. Because of the incremental procedure, ISLA can be extended to non-proportional loading, geometrically non-linear analysis and transient analysis. The searching path of ISLA is based on physical parameters (damage and history) rather than guided by numerical parameters. In addition, the method keeps the same incremental format throughout the entire analysis, circumventing the need to switch intermittently from incremental to total approaches or vice versa.
Original languageEnglish
Title of host publicationComputational Modelling of Concrete Structures
Subtitle of host publicationProceedings of the Conference on Computational Modelling of Concrete and Concrete Structures
EditorsGünther Meschke, Bernhard Pichler, Jan G. Rots
PublisherCRC Press
Pages465-472
ISBN (Electronic)978-1-315-18296-4
ISBN (Print)978-1-13-874117-1
Publication statusPublished - 26 Feb 2018
EventConference on Computational Modelling of Concrete and Concrete Structures - Bad Hofgastein, Austria, Bad Hofgastein, Austria
Duration: 26 Feb 20181 Mar 2018
http://208.254.74.112/books/details/9781138741171/

Conference

ConferenceConference on Computational Modelling of Concrete and Concrete Structures
Abbreviated titleEURO-C 2018
CountryAustria
CityBad Hofgastein
Period26/02/181/03/18
Internet address

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