Author
A.H. van den Boogaard
Other affiliations: Delft University of Technology
Bio: A.H. van den Boogaard is an academic researcher from University of Twente. The author has contributed to research in topics: Forming processes & Hardening (metallurgy). The author has an hindex of 22, co-authored 159 publications receiving 2111 citations. Previous affiliations of A.H. van den Boogaard include Delft University of Technology.
Papers published on a yearly basis
Papers
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TL;DR: In this article, an anisotropic plane stress yield function based on interpolation by second order Bezier curves is proposed, which can be used to describe, e.g., the yield stress and R-value as a function of the loading direction more accurately than with other common analytical yield functions.
238 citations
TL;DR: In this article, the history of Incremental Sheet Forming (ISF) focusing on technological developments is described, and an extensive list of patents including Japanese patents is provided, and the overall conclusion is that ISF has received the attention of the world, in particular of the automotive industry.
233 citations
TL;DR: In this paper, the authors present an overview of mechanisms that have been suggested to explain the enhanced formability of incremental sheet metal forming, including contact stress, bending under tension, shear, cyclic straining, geometrical inability to grow and hydrostatic stress.
222 citations
TL;DR: In this article, the Bergstrom model is used to model the flow stress of Al-Mg alloys up to 200 °C and medium strain rates, and it is shown that the Bergström model is able to model flow stress up to 20 °C with moderate strain rates.
93 citations
TL;DR: In this paper, a constitutive model for quench-hardenable boron steel blanks is presented, which consists of an extended Swift hardening law and a stress triaxiality and Lode angle dependent fracture criterion.
91 citations
Cited by
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Journal Article•
TL;DR: This book by a teacher of statistics (as well as a consultant for "experimenters") is a comprehensive study of the philosophical background for the statistical design of experiment.
Abstract: THE DESIGN AND ANALYSIS OF EXPERIMENTS. By Oscar Kempthorne. New York, John Wiley and Sons, Inc., 1952. 631 pp. $8.50. This book by a teacher of statistics (as well as a consultant for \"experimenters\") is a comprehensive study of the philosophical background for the statistical design of experiment. It is necessary to have some facility with algebraic notation and manipulation to be able to use the volume intelligently. The problems are presented from the theoretical point of view, without such practical examples as would be helpful for those not acquainted with mathematics. The mathematical justification for the techniques is given. As a somewhat advanced treatment of the design and analysis of experiments, this volume will be interesting and helpful for many who approach statistics theoretically as well as practically. With emphasis on the \"why,\" and with description given broadly, the author relates the subject matter to the general theory of statistics and to the general problem of experimental inference. MARGARET J. ROBERTSON
13,333 citations
01 Jan 2006
TL;DR: Probability distributions of linear models for regression and classification are given in this article, along with a discussion of combining models and combining models in the context of machine learning and classification.
Abstract: Probability Distributions.- Linear Models for Regression.- Linear Models for Classification.- Neural Networks.- Kernel Methods.- Sparse Kernel Machines.- Graphical Models.- Mixture Models and EM.- Approximate Inference.- Sampling Methods.- Continuous Latent Variables.- Sequential Data.- Combining Models.
10,141 citations
TL;DR: In this paper, a 3D asymmetric fracture locus, in the space of equivalent fracture strain, stress triaxiality and the Lode angle parameter, is proposed.
1,351 citations
15 Nov 2004
TL;DR: In this paper, the authors provide an in-depth survey of arbitrary Lagrangian-Eulerian (ALE) methods, including both conceptual aspects of the mixed kinematical description and numerical implementation details.
Abstract: The aim of the present chapter is to provide an in-depth survey of arbitrary Lagrangian–Eulerian (ALE) methods, including both conceptual aspects of the mixed kinematical description and numerical implementation details. Applications are discussed in fluid dynamics, nonlinear solid mechanics and coupled problems describing fluid–structure interaction. The need for an adequate mesh-update strategy is underlined, and various automatic mesh-displacement prescription algorithms are reviewed. This includes mesh-regularization methods essentially based on geometrical concepts, as well as mesh-adaptation techniques aimed at optimizing the computational mesh according to some error indicator. Emphasis is then placed on particular issues related to the modeling of compressible and incompressible flow and nonlinear solid mechanics problems. This includes the treatment of convective terms in the conservation equations for mass, momentum, and energy, as well as a discussion of stress-update procedures for materials with history-dependent constitutive behavior.
Keywords:
ALE description;
convective transport;
finite elements;
stabilization techniques;
mesh regularization and adaptation;
fluid dynamics;
nonlinear solid mechanics;
stress-update procedures;
fluid–structure interaction
901 citations
Max Planck Society1, University of Manchester2, Michigan State University3, University of Bremen4, Bulgarian Academy of Sciences5, Masaryk University6, Academy of Sciences of the Czech Republic7, Paul Scherrer Institute8, Northeastern University9, Tata Steel Europe10, Austrian Institute of Technology11, Technische Universität München12
TL;DR: The Dusseldorf Advanced Material Simulation Kit (DAMASK) as mentioned in this paper is an open, flexible, and easy to use implementation to the scientific community that allows the use and straightforward implementation of different types of constitutive laws and numerical solvers.
410 citations