Print Email Facebook Twitter Development of a Robust Coupled Material Point Method Title Development of a Robust Coupled Material Point Method Author Zheng, X. (TU Delft Geo-engineering) Gonzalez Acosta, J.L. (TU Delft Geo-engineering) Remmerswaal, G. (TU Delft Geo-engineering) Vardon, P.J. (TU Delft Geo-engineering) Pisano, F. (TU Delft Geo-engineering) Hicks, M.A. (TU Delft Geo-engineering) Contributor Barla, Marco (editor) Di Donna, Alice (editor) Sterpi, Donatella (editor) Date 2021 Abstract The material point method (MPM) shows promise for the simulation of large deformations in history-dependent materials such as soils. However, in general, it suffers from oscillations and inaccuracies due to its use of numerical integration and stress recovery at non-ideal locations. The development of a hydro-mechanical model, which does not suffer from oscillations is presented, including a number of benchmarks which prove its accuracy, robustness and numerical convergence. In this study, particular attention has been paid to the formulation of two-phase coupled material point method and the mitigation of volumetric locking caused numerical instability when using low-order finite elements for (nearly) incompressible problems. The numerical results show that the generalized interpolation material point (GIMP) method with selective reduced integration (SRI), patch recovery and composite material point method (CMPM) (named as GC-SRI-patch) is able to capture key processes such as pore pressure build-up and consolidation. Subject ConsolidationCoupled behaviorHydro-mechanicalLarge deformationMaterial point methodReduced integration To reference this document use: http://resolver.tudelft.nl/uuid:b3c82bd2-85fb-4cdb-bb6a-b88d60c5fcf2 DOI https://doi.org/10.1007/978-3-030-64514-4_88 Publisher Springer, Cham ISBN 9783030645137 Source Challenges and Innovations in Geomechanics - Proceedings of the 16th International Conference of IACMAG - Volume 1 Event 16th International Conference of IACMAG (postponed), 2021-05-05 → 2021-05-08, Torino, Italy Series Lecture Notes in Civil Engineering, 2366-2557, 125 Part of collection Institutional Repository Document type conference paper Rights © 2021 X. Zheng, J.L. Gonzalez Acosta, G. Remmerswaal, P.J. Vardon, F. Pisano, M.A. Hicks Files PDF Zheng2021_Chapter_Develop ... ledMat.pdf 1.26 MB Close viewer /islandora/object/uuid:b3c82bd2-85fb-4cdb-bb6a-b88d60c5fcf2/datastream/OBJ/view