کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
258298 503615 2013 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A serial two-stage viscoelastic–viscoplastic constitutive model with thermodynamical consistency for characterizing time-dependent deformation behavior of asphalt concrete mixtures
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
A serial two-stage viscoelastic–viscoplastic constitutive model with thermodynamical consistency for characterizing time-dependent deformation behavior of asphalt concrete mixtures
چکیده انگلیسی

A serial two-stage viscoelastic–viscoplastic constitutive model is developed using internal variables theory and orthogonality principle of thermodynamics for modeling time-dependent behavior of asphalt concrete mixtures. In one stage when the actual stress is lower than the yield stress, the constitutive model only exhibit viscoelastic component, while in another stage when the actual stress exceeds the yield stress, the constitutive model exhibit both viscoelastic and viscoplastic components. Model parameters of viscoelastic component are estimated using data obtained from dynamic modulus test, whereas model parameters of viscoplastic component are consecutively estimated from creep test, assuming a known viscoelastic component.


► A two-stage VE–VP constitutive model is proposed.
► Internal variables theory and orthogonality principle of thermodynamics are used.
► The model simulates the nonlinear time-dependent behavior of asphalt mixtures.
► Model parameters of VE component are estimated from dynamic modulus test.
► Model parameters of VP component are consecutively estimated from creep test.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 40, March 2013, Pages 584–595
نویسندگان
, ,