Journal article
Peridynamics with Corrected Boundary Conditions and Its Implementation in Multiscale Modeling of Rolling Contact Fatigue
Journal of multiscale modelling, Vol.10(1), p.1841003
03/2019
DOI: 10.1142/S1756973718410032
Abstract
There is a boundary effect due to incomplete horizons of boundary or near-boundary points in peridynamics. In this paper, we propose to attach “fictitious walls” to boundary surfaces so that the boundary effect can be reduced or eliminated. Differing from the concept of “fictitious material layers”, which is only attached to displacement boundary surfaces, “fictitious walls” are attached to both displacement and force boundary surfaces. Three types of fictitious walls are considered in this paper: undeformed, deformed, and periodic. It is recommended to attach “undeformed fictitious walls” to displacement boundaries and “deformed fictitious walls” to force boundaries. “Periodic fictitious walls” are suggested for use in peristatics only. In addition, peridynamics with corrected boundary conditions is then implemented in a hierarchical multiscale method to study rolling contact fatigue. In this hierarchical multiscale framework, the coefficient of friction is passed from molecular dynamics simulations to peridynamics, which models crack initiation and propagation in rolling contact simulations.
Details
- Title: Subtitle
- Peridynamics with Corrected Boundary Conditions and Its Implementation in Multiscale Modeling of Rolling Contact Fatigue
- Creators
- Mir Ali Ghaffari - General MotorsYanjue Gong - Beijing Technology and Business UniversitySiamak Attarian - University of IowaShaoping Xiao - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Journal of multiscale modelling, Vol.10(1), p.1841003
- DOI
- 10.1142/S1756973718410032
- ISSN
- 1756-9737
- eISSN
- 1756-9745
- Grant note
- DOI: 10.13039/100000001, name: National Science Foundation, award: EPS-1101284; name: CHINA-NNSF, award: CHINA-NNSF-11572090
- Language
- English
- Date published
- 03/2019
- Academic Unit
- Mechanical Engineering
- Record Identifier
- 9984201441402771
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