Nonlocal simulation of failure evolution with md and mpm: A case study

Z. Chen, Y. Su, J. Tao, F. M. Pfeiffer

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

There are two types of numerical methods available for simulating failure evolution, namely, continuous and discontinuous ones. Molecular dynamics (MD) is a representative example of discontinuous methods, in which a cut-off radius associated with the discrete forcing function for a given molecule is specified to describe the interactions among this molecule and other molecules within a domain of influence. On the other hand, the material point method (MPM) is a continuum-based particle method, in which a constitutive model is required for a given material point such that the interaction among this material point and other points is described via the first and higher order gradients of deformations. In this work, a case study is conducted to compare the numerical results as obtained with both MD and MPM in simulating an impact test to evaluate cartilage failure, with a focus on the nonlocal feature due to a size effect.

Original languageEnglish
Title of host publicationAdvances in Engineering Materials, Structures and Systems
Subtitle of host publicationInnovations, Mechanics and Applications - Proceedings of the 7th International Conference on Structural Engineering, Mechanics and Computation, 2019
EditorsAlphose Zingoni
PublisherCRC Press/Balkema
Pages314-319
Number of pages6
ISBN (Print)9781138386969
DOIs
StatePublished - 2019
Event7th International Conference on Structural Engineering, Mechanics and Computation, 2019 - Cape Town, South Africa
Duration: 2 Sep 20194 Sep 2019

Publication series

NameAdvances in Engineering Materials, Structures and Systems: Innovations, Mechanics and Applications - Proceedings of the 7th International Conference on Structural Engineering, Mechanics and Computation, 2019

Conference

Conference7th International Conference on Structural Engineering, Mechanics and Computation, 2019
Country/TerritorySouth Africa
CityCape Town
Period2/09/194/09/19

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