Searched for: subject%3A%22MPM%22
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Remmerswaal, G. (author)
Flood protection infrastructure requires constant investments to cover the increasing flood risk. However, due to over-conservatism in (dyke) safety assessments, poorly targeted investments can be made. Over-conservatism can be avoided by understanding the entire failure process, from the initiation of failure until flooding. Dyke slope...
doctoral thesis 2023
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Do, Phuong Chinh (author), Vardon, P.J. (author), Gonzalez Acosta, J.L. (author), Hicks, M.A. (author)
The material point method (MPM) is gaining an increasing amount of attention due to its capacity to solve geotechnical problems involving large deformations. Large deformations in geotechnics usually involve the failure process and therefore dynamic analyses are often carried out. However, simulating the (infinite) continuous domain using...
conference paper 2023
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Yost, Kaleigh M. (author), Martinelli, M. (author), Yerro, Alba (author), Green, Russell A. (author), de Lange, Dirk A. (author)
Cone penetrometer tests (CPTs) are used to characterize soil for a variety of geotechnical engineering applications, including earthquake-induced liquefaction triggering assessment. Numerical modeling of CPTs is frequently used to better understand soil behavior, soil-penetrometer interaction, and engineering estimates made from CPT data....
journal article 2023
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Ruiter, Stijn (author)
<br/>The Material Point Method (MPM) is a numerical method primarily used in the simulation of large deforming or multi-phase materials. An example of such a problem is a landslide or snow simulation. The MPM uses Lagrangian particles (material points) to store the interested physical quantities. These particles can move freely in the spatial...
master thesis 2022
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Bierma, Sybren (author)
The numerical modelling of a cone penetration test (CPT) has long been a challenging task due to the large deformations associated with the penetration of a CPT. Recent developments in advanced numerical methods have shown promising results in overcoming these difficulties by using the Material Point Method (MPM). In this thesis it is researched...
master thesis 2022
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Martinelli, M. (author), Galavi, Vahid (author)
This paper describes an MPM formulation using linear quadrilateral elements suitable for soil-structure-interaction problems. The volumetric locking and stress-oscillations are mitigated using a reduced integration technique and the Gauss integration scheme, respectively. The formulation can be used with both structured and unstructured...
journal article 2022
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Man, Coco (author)
To protect the Netherlands better from flooding, and with an eye on sea-level rise in the rest of the world, more accurate assessments are needed for dykes. The calculation for the most occurring failure mechanism in dykes, i.e. macro-instability, is limited by not being able to calculate large deformation when sliding occurs within a dyke. The...
master thesis 2021
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Voorn, Philip (author)
Dikes protect people and lands all around the globe. With rising sea levels, the importance of well-designed dikes has never been more essential. One of the main factors that can compromise the stability of dikes are macro-instabilities. Macro-instabilities can cause dikes to lose their water bearing potential, leading to floods. Methods are...
student report 2021
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Gonzalez Acosta, J.L. (author), Vardon, P.J. (author), Hicks, M.A. (author)
Mesh based methods such as the finite element method (FEM) are the most usually used techniques for analysing soil-structure interaction problems in geotechnical engineering. Nevertheless, standard FEM is unable to simulate large deformations and contact, hindering the realistic simulation of rotational, sliding, pull-out and overturning...
journal article 2021
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Sun, Junzi (author), Sunil, Emmanuel (author), Koerse, Ralph (author), van Selling, Stijn (author), van Doorn, Jan-Willem (author), Brinkman, Thomas (author)
The METeo Sensors in the Sky (METSIS) project, funded by SESAR’s Engage knowledge transfer network, investigated the use of drones as an aerial wind sensor network for U-space applications. The concept aims to provide accurate, lowcost and hyperlocal wind nowcasts for drones using data collected by drones themselves and the Meteo-Particle Model ...
conference paper 2021
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Leclercq, Vincent (author)
This thesis tried to quantify the strength reduction of the soft soil layers of the experiment through a back analysis of the failure of the dyke without sheet pile wall. Residual strength hypothesis were formulated based on a literature study and the current design norm of dyke design on soft soil layers in the Netherlands. A Limit Equilibrium...
master thesis 2020
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Gonzalez Acosta, J.L. (author), Zheng, X. (author), Vardon, P.J. (author), Hicks, M.A. (author), Pisano, F. (author)
Stress oscillations in the material point method (MPM) are one of the major reasons unrealistic results are obtained. In this paper an investigation of the stress oscillations occurring when using one- and two-phase approaches is performed. Specifically, an axisymmetric benchmark and a two-dimensional plane strain problem are used to demonstrate...
conference paper 2019
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Kramer, Victor (author)
Building wind turbines near flood defences has numerous advantages over other locations on land. The water authorities, which own the land of the flood defence, will only permit the turbines if the flood protection assessment satisfies the safety standard after the wind turbines have been constructed. There are three types of failure of a wind...
master thesis 2017
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Remmerswaal, Guido (author)
A new technique is developed in this thesis, which applies boundary conditions to moving boundaries in the Material Point Method (MPM). While MPM has been proven to be useful in slope stability, foundation and seabed ploughing modelling, the application of boundary conditions is still a challenge,<br/>because the location of the boundary is...
master thesis 2017
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Vardon, P.J. (author), Wang, B. (author), Hicks, M.A. (author)
The simulation of slope failures, including both failure initiation and development, has been modelled using the material point method (MPM). Numerical case studies involving various slope angles, heterogeneity and rainfall infiltration are presented. It is demonstrated that, by utilising a constitutive model which encompasses, in a...
journal article 2017
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Wobbes, Elizaveta (author), Beuth, Lars (author), Vuik, Cornelis (author), Stolle, D.F. (author)
Soil liquefaction describes a loss of strength of saturated sand upon sudden or cyclic loading. A slight disturbance of such a soil’s fabric might lead to severe damage, e.g. the collapse of sea dikes. Accurate modeling of the state transition between saturated soil and a liquefied soil-water mixture, as well as post-liquefaction phenomena, is...
journal article 2017
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Pantev, I. (author)
In recent years, the Material Point Method has emerged as a promising alternative to the Finite Element Method for solving problems involving localised deformations, large displacements or rotations, fracture, contact/impact problems and others. FEMhas been a staple of engineering disciplines both in academia and industry for decades, however...
master thesis 2016
Searched for: subject%3A%22MPM%22
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