Print Email Facebook Twitter Comparison and unification of material-point and optimal transportation meshfree methods Title Comparison and unification of material-point and optimal transportation meshfree methods Author Wobbes, Elizaveta (TU Delft Numerical Analysis) Tielen, R.P.W.M. (TU Delft Numerical Analysis) Möller, M. (TU Delft Numerical Analysis) Vuik, Cornelis (TU Delft Numerical Analysis) Date 2020 Abstract Both the material-point method (MPM) and optimal transportation meshfree (OTM) method have been developed to efficiently solve partial differential equations that are based on the conservation laws from continuum mechanics. However, the methods are derived in a different fashion and have been studied independently of one another. In this paper, we provide a direct step-by-step comparison of the MPM and OTM algorithms. Based on this comparison, we derive the conditions, under which the two approaches can be related to each other, thereby bridging the gap between the MPM and OTM communities. In addition, we introduce a novel unified approach that combines the design principles from B-spline MPM and the OTM method. The proposed approach does not contain user-defined parameters and can decrease the costs of the standard OTM method. Moreover, it allows for the use of a consistent mass matrix without stability issues that are typically encountered in MPM computations. Subject B-splineConsistent mass matrixMaterial pointMaximum entropyMeshfreeOptimal transportation To reference this document use: http://resolver.tudelft.nl/uuid:f49ba802-f6da-4c1f-ae4c-e5c61d6f6a6d DOI https://doi.org/10.1007/s40571-020-00316-7 ISSN 2196-4378 Source Computational Particle Mechanics, 8 (2021) (1), 113-133 Bibliographical note Green Part of collection Institutional Repository Document type journal article Rights © 2020 Elizaveta Wobbes, R.P.W.M. Tielen, M. Möller, Cornelis Vuik Files PDF Wobbes2021_Article_Compar ... OfMate.pdf 1.13 MB Close viewer /islandora/object/uuid:f49ba802-f6da-4c1f-ae4c-e5c61d6f6a6d/datastream/OBJ/view