- document
-
Ruan, J. (author), Ghose, R. (author), Mulder, W.A. (author)Modelling dynamic rupture is essential to correctly describe the process of induced seismicity. Defmod, an open-source finite-element code featuring quasi-static loading, co-seismic volumetric strain, and dynamic rupture, is used to simulate the entire chain of induced seismicity, from pressure evolution due to fluid injection and extraction,...abstract 2020
- document
-
van Kan, J.J.I.M. (author), Segal, A. (author), Vermolen, Fred (author)Partial differential equations are paramount in mathematical modelling with applications in engineering and science. The book starts with a crash course on partial differential equations in order to familiarize the reader with fundamental properties such as existence, uniqueness and possibly existing maximum principles. The main topic of the...book 2023
- document
-
Shang, Y. (author), Nogal Macho, M. (author), Wolfert, A.R.M. (author)A co-simulation solution based on direct equilibrium of contact forces is proposed to simulate vehicle-track interaction (VTI) dynamics. It is developed in two platforms, which presents an iterative feedback loop that exchanges contact force files and structure response field in real-time. The load vector acting on the structure is described by...book chapter 2022
- document
-
Brinkgreve, R.B.J. (author), Post, M. (author)Displacement-based finite element calculations are primarily used for serviceability limit state (SLS) analysis, but the finite element method also offers possibilities for ultimate limit state (ULS) design in geotechnical engineering. The combined use of SLS and ULS calculations with partial safety factors according to the different design...conference paper 2015
- document
-
Coenders, J.L. (author)This paper presents two novel open source software developments for design and engineering in the built environment. The first development, called “sustainability-open” [1], aims on providing open source design, analysis and assessment software source code for (environmental) performance of buildings, structures and infrastructure. The aim of...conference paper 2013
- document
-
Tabata, M. (author)We present energy stable finite element schemes for two-fluid problems with interfacial tension. The interface is captured by solving numerically ordinary differential equations and the interface tension is brought in into the weak formulation of the finite element scheme. Some numerical results of rising bubble problems show the robustness and...conference paper 2006
- document
-
Stiemer, M. (author), Unger, J. (author), Svendsen, B. (author), Blum, H. (author)Electromagnetic metal forming is a contact-free high-speed forming process. The deformation of the workpiece is driven by a material body force, the Lorentz force, that results from the interaction of a pulsed magnetic field with eddy currents induced in the workpiece by the magnetic field itself. The purpose of this work is to present a fully...conference paper 2006
- document
-
Deng, X. (author), Naeimi, M. (author), Li, Z. (author), Qian, Z. (author)A modeling procedure to predict the residual fatigue life of rail at squats seeds is developed in this article. Two models are involved: a 3D explicit Finite Element (FE) model to compute the stress and strain at squats in rail, and the J-S fatigue damage model to determine the residual fatigue life on the basis of the computed stress and strain...conference paper 2014
- document
-
Rudnyi, E.B. (author), Korvink, J.G. (author)Software MOR for ANSYS has been developed at IMTEK in 2003. It allows us to perform model reduction directly to finite element models developed in ANSYS. The goal of the present paper is to describe progress achieved for the last two years and review our publications with application of MOR for ANSYS to various engineering problems for different...conference paper 2006
- document
-
Akbas, S.O. (author), Kokten, O. (author)A deep excavation application characterized by imprecise data and lack of adequate information is used to demonstrate the efficiency, applicability, and validity of the random set theory in combination with finite element method (RS-FEM). A case history of an anchored contiguous pile wall in overconsolidated fissured Ankara Clay constructed for...conference paper 2015
- document
-
Caggiano, A. (author), Pepe, M. (author), Koenders, E.A.B. (author), Martinelli, E. (author), Etse, G.J. (author)Heat production induced by the hydration reaction and the resulting temperature evolution in the early phases of setting and hardening processes are critical phenomena, often leading to premature cracking of concrete members. However, the interest for simulating such phenomena is also related to the fundamental relationships between the nature...conference paper 2012
- document
-
Tapeinos, I. (author), Koussios, S. (author), Groves, R.M. (author)This paper outlines the structural performance of a conformable pressurizable tank consisting of intersecting spherical shells (multi-cell tank). Multi-cell tanks outrival conventional multiple cylindrical tanks in volumetric efficiency when required to fit in a rectangular envelope in the automotive industry. When pressurized, the multi-cell ...conference paper 2015
- document
-
John, V. (author), Tambulea, A. (author)Two realizations of finite element variational multiscale (VMS) methods for the simulation of incompressible turbulent flows are studied. The difference between the two approaches consists in the way the spaces for the large scales and the resolved small scales are chosen. The paper addresses issues of the implementation of these methods, the...conference paper 2006
- document
- Sandhaas, C. (author), Van de Kuilen, J.W. (author), Blass, H.J. (author) conference paper 2012
- document
-
Bernsen, E. (author), Bokhove, O. (author), Van der Vegt, J.J.W. (author)A mixed continuous and discontinuous Galerkin finite element discretization has been constructed for a generalized vorticity-streamfunction formulation in two spatial dimensions. This formulation consists of a hyperbolic (potential) vorticity equation and a linear elliptic equation for a (transport) streamfunction. The advantages of this finite...conference paper 2006
- document
-
Zunic, Z. (author), Hribersek, M. (author), Skerget, L. (author), Ravnik, J. (author)A numerical algorithm for the solution of the velocity-vorticity formulation of Navier-Stokes equations is presented. This formulation results in splitting of fluid flow into its kinematic and kinetic aspect. The Boundary Element Method (BEM) used for the solution of flow kinematics results in an implicit calculation of vorticity values at the...conference paper 2006
- document
-
Hilloulin, B. (author), Grondin, F. (author), Matallah, M. (author), Loukili, A. (author)Cracks, caused by shrinkage or external loading, reduce the durability of concrete structures as aggressive substances can easily enter in the capillary network of the cementitious matrix. Natural autogenous healing ability of concrete by further hydration or precipitation has been studied experimentally for many years. Autogenous healing of...conference paper 2013
- document
-
Naeimi, M. (author), Li, Z. (author), Dollevoet, R.P.B.J. (author), Wu, J. (author), Petrov, R.H. (author), Sietsma, J. (author)The coupled mechanical–thermal behaviour of wheel and rail materials under rolling contact is studied to determine the temperature rise due to the frictional heat. The wheel–rail frictional rolling contact problem is solved using the three–dimensional finite element (FE) method. The FE model considers the wheel tread–rail top contact with...conference paper 2015
- document
-
Burman, E. (author)In this note we will first discuss finite element discretizations of the incompressible Navier-Stokes equations with some artificial dissipation added in the form of either a turbulence model or some numerical stabilization term. We will then review some results on interior penalty stabilized finite element methods for incompressible flow. These...conference paper 2006
- document
-
Borggaard, J. (author), Iliescu, T. (author)The boundary commutation error in large eddy simulation is studied numerically. It is shown that an accurate representation of the boundary commutation error has an important role in a reliable large eddy simulation of wall bounded flows. The numerical experiments in this paper are conducted for a 2D channel flow.conference paper 2006