Elasto-viscoplastic consistent tangent operator concept-based implicit boundary element methods

Yong Liu, Glaucio H. Paulino, Lihua Liang

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


An elasto-viscoplastic consistent tangent operator (CTO) concept-based implicit algorithm for nonlinear boundary element methods is presented. Both kinematic and isotropic strain hardening are considered. The elasto-viscoplastic radial return algorithm (RRA) and the elasto-viscoplastic CTO and its related scheme are developed. In addition, the limit cases (e.g. elastoplastic problem) of viscoplastic RRA and CTO are discussed. Finally, numerical examples, which are compared with the latest FEM results of Ibrahimbegovic et al. and ABAQUS results, are provided.

Original languageEnglish (US)
Pages (from-to)154-164
Number of pages11
JournalScience in China, Series E: Technological Sciences
Issue number2
StatePublished - Apr 2000
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • General Engineering


  • Boundary element method
  • Computational mechanics
  • Consistent tangent operator (CTO)
  • Elasto-viscoplasticity
  • Implicit algorithm


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