Abstract
A constitutive model based on hyperelasticity is proposed to capture the resilient (elastic) behavior of granular materials. Resilient behavior is a widely accepted idealization of the response of unbound granular layers of pavements, following shakedown. The coupling property of the proposed model accounts for shear dilatancy and pressure-dependent behavior of the granular materials. The model is calibrated using triaxial resilient test data obtained from the literature. A statistical comparison is made between the predictions of the proposed model and a few of the prominent models of resilient response. The proposed coupled hyperelastic model yields a significantly better fit to the experimental data. It also offers a computational efficiency when implemented in a classical nonlinear finite elemental framework.
Original language | English (US) |
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Pages (from-to) | 969-978 |
Number of pages | 10 |
Journal | Journal of Engineering Mechanics |
Volume | 128 |
Issue number | 9 |
DOIs | |
State | Published - Sep 2002 |
Externally published | Yes |
Keywords
- Elasticity
- Finite element method
- Granular materials
- Pavements
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering