Meshfree Sequentially Linear Analysis of Concrete

A. Salam Al-Sabah, Debra F. Laefer

Research output: Contribution to journalArticle

Abstract

A new, meshfree method employing the node-based, smoothed point interpolation method (NS-PIM) is presented as an alternative to the nonlinear finite-element approach for concrete members. The nonlinear analysis is replaced by sequentially linear analyses (SLA), and a smeared, fixed concrete cracking model was used. A notched concrete beam was employed for validation. Using a crack band width factor of 2.0 and 10-mm nodal spacing, the peak load differed by only 3.5% from experimental results. Overall results were similar to experimental ones, as well as to those published by researchers using finite-element SLA. The approach provides two major advantages over finite-element-based SLA: (1) nodal distortion insensitivity, and (2) nodal spacing insensitivity.

Original languageEnglish (US)
Article number04015009
JournalJournal of Computing in Civil Engineering
Volume30
Issue number2
DOIs
StatePublished - Mar 1 2016

Keywords

  • Concrete
  • Cracking
  • Mesh free method
  • Point interpolation method
  • Sequentially linear analysis

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Computer Science Applications

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