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On the implementation of Augmented Lagrangian Method in the 2D Discontinuous Deformation Analysis

  • Z. Y. Zhao
  • , H. R. Bao
  • , Q. Tian

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Scopus citations

Abstract

The penalty method employed by the Discontinuous Deformation Analysis (DDA) is easy to be implemented in the program but the contact constraint is only approximately satisfied. The penetrations between contacting blocks are unavoidable even if the penalty value is very large. To improve the contact precision, an Augmented Lagrangian Method (ALM) is introduced in this paper, which can make use of advantages of both the Lagrange multiplier method and the penalty method. Examples are provided to show the computational efficiency and contact precision of the ALM enhanced DDA.

Original languageEnglish
Title of host publicationProceedings of the 10th International Conference on Advances in Discontinuous Numerical Methods and Applications in Geomechanics and Geoengineering, ICADD 10
PublisherCRC Press
Pages181-188
Number of pages8
ISBN (Print)9780415684040
DOIs
StatePublished - 1 Jan 2012
Externally publishedYes
Event10th International Conference on Advances in Discontinuous Numerical Methods and Applications in Geomechanics and Geoengineering, ICADD 10 - Honolulu, HI, United States
Duration: 6 Dec 20118 Dec 2011

Publication series

NameProceedings of the 10th International Conference on Advances in Discontinuous Numerical Methods and Applications in Geomechanics and Geoengineering, ICADD 10

Conference

Conference10th International Conference on Advances in Discontinuous Numerical Methods and Applications in Geomechanics and Geoengineering, ICADD 10
Country/TerritoryUnited States
CityHonolulu, HI
Period6/12/118/12/11

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Numerical Analysis

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