Hypoplastic model for sands with loading surface |
| |
| Authors: | W Fuentes T Triantafyllidis A Lizcano |
| |
| Institution: | 1. Institute of Soil Mechanics and Rock Mechanics, Karlsruhe Institute of Technology KIT, Engler-Bunte-Ring 14, 76131, Karlsruhe, Germany
2. Department of Civil Engineering, University of Los Andes, Carrera 1. Este No. 19A-40, Edificio Mario Laserna, Piso 6, Bogota, Colombia
|
| |
| Abstract: | Although the hypoplastic models for sands have exhibited good predictive capability in monotonic loading, they are not able to reproduce memory effects and predict excessive plastic accumulation under cyclic loading. To overcome these issues, a loading surface has been incorporated into a hypoplastic model. This surface is capped and has two hardening variables. Notions from the bounding surface plasticity were borrowed in order to formulate the hardening functions. With this novel model, some salient features can be described: the model can account for the accumulation of plastic deformation, a memory effect is provided by the new surface, and stress-induced anisotropy effects observed in sands are successfully simulated. A short calibration guide of the parameters is given, and some simulations for Hostun RF loose sand and Toyoura sand are presented. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
