Modeling linear and nonlinear viscoelastic oscillatory rheometric stress-strain hysteresis of asphalt binders.

ABSTRACT: Understanding the complex stress-strain hysteresis behavior of asphalt binders under varied conditions is critical for optimizing pavement performance. This study addresses the challenge by analyzing and modeling asphalt binder responses in oscillating shear mode across different aging states (unaged, short-term aged, and long-term aged), stretch amplitudes, frequencies, and temperatures. Fifty-three stress-strain hysteresis loops were meticulously analyzed, revealing distinct stress paths relative to applied stretch levels. A nine-parameter parallel rheological framework model was developed, integrating a four-parameter eight-chain (FEC) hyperelastic model in one network and a FEC hyperelastic model with a linear viscoelastic flow element in series in another. This constitutive model was

SUBMITTER: Diab A 

PROVIDER: S-EPMC11573977 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature