A dynamic ALE formulation for structures under moving loads
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
Abstract
This work describes the implementation of a novel dynamic Arbitrary Lagrangian Eulerian (ALE) formulation for the simulation of pavement structures loaded by rolling tires in a finite element framework. The proposed formulation enables the simulation of dynamic effects like acceleration, deceleration and variation of the wheel load on the pavement. The ALE scheme is described for a hyperelastic St. Venant-Kirchhoff material capable of finite deformations. With the adoption of this dynamic ALE formulation, a significant improvement in terms of speed and efficiency of the simulation is achieved in comparison to a classical transient Lagrangian formulation. This is primarily because only the relevant portion of the mesh around the applied load needs to be discretized and simulated. Another benefit is that a cumbersome moving load formulation does not need to be implemented. The results show satisfactory agreement with a conventional Lagrangian simulation with a moving load.
Details
Original language | English |
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Pages (from-to) | 139 - 157 |
Number of pages | 19 |
Journal | Computational mechanics |
Volume | 73 |
Issue number | 1 |
Early online date | 7 Jul 2023 |
Publication status | Published - Jan 2024 |
Peer-reviewed | Yes |
External IDs
Scopus | 85164175422 |
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WOS | 001020712900001 |
Keywords
ASJC Scopus subject areas
Keywords
- Dynamic ALE formulation, Pavement design, Tire pavement interaction, Transient analysis