The Development of a Systematic Analysis Procedure to Characterize the Nonlinear Viscoelastic and Visco-Damage Parameters

• Main Authors: Pei-Shan Tsai, 蔡佩珊
• Other Authors: 黃添坤
• Format: Others
• Language: en_US
• Published: 2018
• Online Access: http://ndltd.ncl.edu.tw/handle/4xddg5

碩士 === 國立中興大學 === 土木工程學系所 === 106 === Many researches issued the time-, temperature-, visco-, linear-, nonlinear-, and the damage- properties of the asphalt mixtures. But rare of studies have the effective and systematical analysis procedure. In addition, the damage density is hard to obtain due to the micro-damage area. Hence, this study presents a developed procedure to characterize the viscoelastic and visco-damage properties for decoupling the linear viscoelastic (LVE), nonlinear viscoelastic (NVE), and visco-damage (VD) behaviors of asphalt mixtures, that based on the Schapery’s nonlinear viscoelastic model and the continuum damage mechanics. The systematical procedure analyzes the LVE parameters and NVE Prony series coefficients from the result of the dynamic modulus test (DMT) and the repeated creep and recovery test (RCRT). Numerical algorithms are implemented using Matlab code to simulate the behavior of the linear and nonlinear viscoelastic to predict the damage response of asphalt mixtures. Furthermore, the Matlab code is validated by comparing its predictions with experimental data. Finally, the significant enhancement of this study is to describe the behavior of visco-damage by using viscoelastic Prony series.