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Field-gradient partitioning for fracture and frictional contact in the material point method: Field-gradient partitioning for fracture and frictional contact in the material point method [Fracture and frictional contact in material point method using damage-field gradients for velocity-field partitioning]

Journal Article · · International Journal for Numerical Methods in Engineering
DOI:https://doi.org/10.1002/nme.5317· OSTI ID:1366949
 [1];  [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). Computational Geosciences Group

Contact and fracture in the material point method require grid-scale enrichment or partitioning of material into distinct velocity fields to allow for displacement or velocity discontinuities at a material interface. We present a new method which a kernel-based damage field is constructed from the particle data. The gradient of this field is used to dynamically repartition the material into contact pairs at each node. Our approach avoids the need to construct and evolve explicit cracks or contact surfaces and is therefore well suited to problems involving complex 3-D fracture with crack branching and coalescence. A straightforward extension of this approach permits frictional ‘self-contact’ between surfaces that are initially part of a single velocity field, enabling more accurate simulation of granular flow, porous compaction, fragmentation, and comminution of brittle materials. Finally, numerical simulations of self contact and dynamic crack propagation are presented to demonstrate the accuracy of the approach.

Research Organization:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1366949
Alternate ID(s):
OSTI ID: 1401689
Report Number(s):
LLNL-JRNL--679544
Journal Information:
International Journal for Numerical Methods in Engineering, Journal Name: International Journal for Numerical Methods in Engineering Journal Issue: 7 Vol. 109; ISSN 0029-5981
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (7)

Phase-field material point method for brittle fracture: Phase-Field Material Point Method for Brittle Fracture journal August 2017
An adaptive material point method coupled with a phase‐field fracture model for brittle materials journal July 2019
A convected particle least square interpolation material point method
  • Tran, Quoc Anh; Sołowski, Wojciech; Berzins, Martin
  • International Journal for Numerical Methods in Engineering, Vol. 121, Issue 6 https://doi.org/10.1002/nme.6257
journal November 2019
Material point method for crack propagation in anisotropic media: a phase field approach journal July 2017
A convected-particle tetrahedron interpolation technique in the material-point method for the mesoscale modeling of ceramics journal February 2019
Investigation of influence of baffles on landslide debris mobility by 3D material point method journal January 2020
In situ X-ray imaging of heterogeneity in dynamic compaction of granular media journal January 2019

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