000868012 001__ 868012
000868012 005__ 20210130004021.0
000868012 020__ $$a978-84-121101-1-1
000868012 037__ $$aFZJ-2019-06605
000868012 041__ $$aEnglish
000868012 1001_ $$0P:(DE-HGF)0$$aSchulz, Stephan$$b0$$eCorresponding author
000868012 1112_ $$aVI International Conference on Particle Based Methods: Fundamentals and Applications$$cBarcelona$$d2019-10-28 - 2019-10-30$$wSpain
000868012 245__ $$aA Consistent Boundary Method for the Material Point Method - Using Image Particles to Reduce Boundary Artefacts
000868012 260__ $$aBarcelona, Spain$$bInternational Centre for Numerical Methods in Engineering (CIMNE)$$c2019
000868012 300__ $$a522 - 531
000868012 3367_ $$2ORCID$$aCONFERENCE_PAPER
000868012 3367_ $$033$$2EndNote$$aConference Paper
000868012 3367_ $$2BibTeX$$aINPROCEEDINGS
000868012 3367_ $$2DRIVER$$aconferenceObject
000868012 3367_ $$2DataCite$$aOutput Types/Conference Paper
000868012 3367_ $$0PUB:(DE-HGF)8$$2PUB:(DE-HGF)$$aContribution to a conference proceedings$$bcontrib$$mcontrib$$s1576756623_22301
000868012 3367_ $$0PUB:(DE-HGF)7$$2PUB:(DE-HGF)$$aContribution to a book$$mcontb
000868012 520__ $$aThe Material Point Method (MPM) is a continuum-based numerical method which discretises the object as material points. It is particularly wellsuited for and has shown great success in the community for large deformations. Even though it has been widely adopted, there are still fundamental questions to be addressed. In MPM the material properties are carried on the material points and the dynamics is calculated on an overlaid grid. Afterwards, the material points are integrated according to the grid values using an explicit time integration scheme. The traditional boundary methods are applied on the grid values, such as setting the grid momentum to zero for grid nodes inside a fixed wall. This can cause artefacts in the stress as seen for an object in touch with the wall. These distort the stress multiple grid lengths into the object. In this paper we propose a novel consistent boundary method to reduce these artefacts. The method is borrowed from electrostatics and makes use of so called image particles. With their help the desired values of the momentum field are created on both the grid and particles in a consistent way. We will also show an optimization that makes the explicit construction of mirror particles unnecessary. The traditional boundary method and image particle method are then compared using numerical examples featuring stress induced by a simple shear and body forces. These numerical examples show a significant reduction of boundary artefacts using the image particle method.
000868012 536__ $$0G:(DE-HGF)POF3-511$$a511 - Computational Science and Mathematical Methods (POF3-511)$$cPOF3-511$$fPOF III$$x0
000868012 7001_ $$0P:(DE-Juel1)132274$$aSutmann, Godehard$$b1$$eCorresponding author$$ufzj
000868012 8564_ $$uhttps://congress.cimne.com/particles2019/frontal/doc/Ebook_Particles_2019.pdf
000868012 909CO $$ooai:juser.fz-juelich.de:868012$$pVDB
000868012 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)132274$$aForschungszentrum Jülich$$b1$$kFZJ
000868012 9131_ $$0G:(DE-HGF)POF3-511$$1G:(DE-HGF)POF3-510$$2G:(DE-HGF)POF3-500$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$aDE-HGF$$bKey Technologies$$lSupercomputing & Big Data$$vComputational Science and Mathematical Methods$$x0
000868012 9141_ $$y2019
000868012 920__ $$lyes
000868012 9201_ $$0I:(DE-Juel1)JSC-20090406$$kJSC$$lJülich Supercomputing Center$$x0
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000868012 980__ $$aI:(DE-Juel1)JSC-20090406
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