Multi-scale computational model for design of flexible pavement – part III: two-way coupled multi-scaling
| Autor: | David H. Allen, Dallas N. Little, R Soares, Curtis F Berthelot |
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| Rok vydání: | 2015 |
| Předmět: |
Computational model
Engineering Scale (ratio) business.industry 0211 other engineering and technologies 02 engineering and technology Structural engineering Dissipation Multiscale modeling Viscoelasticity Finite element method Asphalt concrete 020303 mechanical engineering & transports 0203 mechanical engineering Mechanics of Materials 021105 building & construction business Scaling Civil and Structural Engineering |
| Zdroj: | International Journal of Pavement Engineering. 18:335-348 |
| ISSN: | 1477-268X 1029-8436 |
| DOI: | 10.1080/10298436.2015.1066001 |
| Popis: | A computational multi-scale procedure for designing flexible roadways is developed in this part, the third of a three-part series. In this study, a two-way coupled multi-scale algorithm was developed and utilised to predict the effects on pavement performance caused by variations in local and global design variables. The model is constructed by utilising the finite element method at two simultaneous and two-way coupled length scales, thereby creating a multi-scale algorithm that is capable of accounting for the effects of variations in design parameters on both length scales. Energy dissipation mechanisms such as viscoelasticity in the asphalt mastic, plasticity in the base layer and crack propagation in the asphalt concrete are incorporated within the model for the purpose of predicting permanent deformations in typical roadways subjected to cyclic tyre loadings. The algorithm is briefly described herein, including the experimental properties required to deploy the computational scheme for the pu... |
| Databáze: | OpenAIRE |
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