Open AccessNonlinear Creep Model and Parameter Determination of Asphalt
Author(s) -
Xiyan Fan,
Wenling Jiang,
Ning Mei,
Chuan-Qi Su
Publication year - 2022
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2174/1/012090
Subject(s) - creep , viscoelasticity , asphalt , polynomial , multivariate statistics , materials science , nonlinear system , stress relaxation , relaxation (psychology) , mathematics , composite material , mathematical analysis , statistics , physics , quantum mechanics , psychology , social psychology
Asphalt is a kind of typical viscoelastic material. Adding different materials in asphalt composite materials is an important way in road engineering materials. The creep experiments under different stress of asphalt, we used the multivariate model to fit the experimental data to get Burgers model and the creep law of asphalt correlation is best. The Burgers model be expanded by Taylor series, the polynomial creep model of creep compliance and relaxation characterized the coefficient of asphalt specimen can be obtained. Compared to other models, the creep law of asphalts well characterized by polynomial model, multivariate model has a wider range of adaptability compared to polynomial model, and polynomial model of mathematical calculation more simple than multivariate model.