Journal
ENGINEERING FRACTURE MECHANICS
Volume 75, Issue 18, Pages 5042-5056Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.engfracmech.2008.07.003
Keywords
Sequentially linear analysis; Brittle fracture; Finite element analysis; Damage
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Funding
- US Fulbright program
- TU Delft
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Sequentially linear analysis avoids convergence problems typical of non-linear finite element analysis by directly specifying a damage increment instead of a load or displacement increment. A series of linear analyses is used to model highly non-linear behavior without an iterative solution algorithm. The primary contribution herein is the extension of sequentially linear analysis to non-proportional loading, through an algorithm which selects the critical integration point to which a damage increment is applied. An orthotropic cracking model is presented which parallels the traditional fixed smeared crack concept. The non-proportional modeling framework is demonstrated through simulation of experimental results and settlement damage to a masonry facade. (c) 2008 Elsevier Ltd. All rights reserved.
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