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 language | English (US) |
|---|---|
| Pages (from-to) | 764-782 |
| Number of pages | 19 |
| Journal | Journal of the Engineering Mechanics Division |
| Volume | 108 |
| Issue number | EM5 |
| State | Published - Oct 1 1982 |
ASJC Scopus subject areas
- Environmental Science(all)
- Engineering(all)
- Earth and Planetary Sciences(all)