contributor author | Eyad Masad | |
contributor author | Samer Dessouky | |
contributor author | Dallas Little | |
date accessioned | 2017-05-08T21:32:01Z | |
date available | 2017-05-08T21:32:01Z | |
date copyright | March 2007 | |
date issued | 2007 | |
identifier other | %28asce%291532-3641%282007%297%3A2%28119%29.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/55095 | |
description abstract | Permanent deformation in hot mix asphalt is caused by a combination of densification (decrease in volume and hence increase in density) and shear deformation. The primary objective of this paper is to develop an elastoviscoplastic model that accounts for the influence of important microstructure properties such as anisotropy and damage on permanent deformation. The model incorporates a yield surface based on the Drucker-Prager function that is modified to capture the influence of stress state on the material response. Also, parameters that reflect the directional distribution of aggregates and damage density in the microstructure are included in this yield surface model. The elastoviscoplastic model is converted into a numerical formulation and is implemented in finite element (FE). The FE model is used in this study to simulate experimental measurements under different confining pressures and strain rates. | |
publisher | American Society of Civil Engineers | |
title | Development of an Elastoviscoplastic Microstructural-Based Continuum Model to Predict Permanent Deformation in Hot Mix Asphalt | |
type | Journal Paper | |
journal volume | 7 | |
journal issue | 2 | |
journal title | International Journal of Geomechanics | |
identifier doi | 10.1061/(ASCE)1532-3641(2007)7:2(119) | |
tree | International Journal of Geomechanics:;2007:;Volume ( 007 ):;issue: 002 | |
contenttype | Fulltext | |