STRAIN-RATE EFFECT IN RAPID TRIAXIAL LOADING OF CONCRETE.

Zdenek P. Bazant*, Byung H. Oh

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

Presented is a generalization of time-independent nonlinear triaxial constitutive relations for concrete to model short-time viscoelastic effects. The effect of strain-rate magnitude upon the initial elastic modulus, the peak stress, and the sharpness of the stress peak is taken into account. To obtain a model that also exhibits short-time rapid creep and stress relaxation, the incrementally linear consititutive law fully characterized by tangential moduli is replaced by a nonlinear first-order differential equation in stress, strain, stress rate and strain rate.

Original languageEnglish (US)
Pages (from-to)764-782
Number of pages19
JournalJournal of the Engineering Mechanics Division
Volume108
Issue numberEM5
StatePublished - Oct 1 1982

ASJC Scopus subject areas

  • Environmental Science(all)
  • Engineering(all)
  • Earth and Planetary Sciences(all)

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