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Acta Mechanica Solida Sinica

, Volume 23, Issue 2, pp 147–155 | Cite as

Dissipation-Based Consistent Rate-Dependent Model for Concrete

  • Fei Leng
  • Gao Lin
Article

Abstract

An energy-dissipation based viscoplastic consistency model is presented to describe the performance of concrete under dynamic loading. The development of plasticity is started with the thermodynamic hypotheses in order that the model may have a sound theoretical background. Independent hardening and softening and the rate dependence of concrete are described separately for tension and compression. A modified implicit backward Euler integration scheme is adopted for the numerical computation. Static and dynamic behavior of the material is illustrated with certain numerical examples at material point level and structural level, and compared with existing experimental data. Results validate the effectiveness of the model.

Key words

constitutive model viscoplasticity consistency model energy dissipation rate dependency concrete backward Euler scheme 

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Copyright information

© The Chinese Society of Theoretical and Applied Mechanics and Technology 2010

Authors and Affiliations

  1. 1.Earthquake Engineering Research DivisionDalian University of TechnologyDalianChina
  2. 2.College of Civil and Transportation EngineeringHohai UniversityNanjingChina

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