A dynamic ALE formulation for structures under moving loads

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung

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

OriginalspracheEnglisch
Seiten (von - bis)139 - 157
Seitenumfang19
FachzeitschriftComputational mechanics
Jahrgang73
Ausgabenummer1
Frühes Online-Datum7 Juli 2023
PublikationsstatusVeröffentlicht - Jan. 2024
Peer-Review-StatusJa

Externe IDs

Scopus 85164175422
WOS 001020712900001

Schlagworte

Schlagwörter

  • Dynamic ALE formulation, Pavement design, Tire pavement interaction, Transient analysis

Bibliotheksschlagworte