H
Heiko Andrä
Researcher at Fraunhofer Society
Publications - 95
Citations - 2640
Heiko Andrä is an academic researcher from Fraunhofer Society. The author has contributed to research in topics: Finite element method & Domain decomposition methods. The author has an hindex of 20, co-authored 86 publications receiving 2027 citations. Previous affiliations of Heiko Andrä include Karlsruhe Institute of Technology & Kaiserslautern University of Technology.
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Digital rock physics benchmarks-Part I: Imaging and segmentation
Heiko Andrä,Nicolas Combaret,Jack Dvorkin,Erik Glatt,Junehee Han,Matthias Kabel,Youngseuk Keehm,Fabian Krzikalla,Minhui Lee,Claudio Madonna,Mike Marsh,Tapan Mukerji,Erik H. Saenger,Ratnanabha Sain,Nishank Saxena,Sarah Ricker,Andreas Wiegmann,Xin Zhan +17 more
TL;DR: The goal is to explore and record the variability of the computed effective properties as a function of using different tools and workflows, and benchmarking is the topic of the two present companion papers.
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Digital rock physics benchmarks-part II: Computing effective properties
Heiko Andrä,Nicolas Combaret,Jack Dvorkin,Erik Glatt,Junehee Han,Matthias Kabel,Youngseuk Keehm,Fabian Krzikalla,Minhui Lee,Claudio Madonna,Mike Marsh,Tapan Mukerji,Erik H. Saenger,Ratnanabha Sain,Nishank Saxena,Sarah Ricker,Andreas Wiegmann,Xin Zhan +17 more
TL;DR: This analysis provides the DRP community with a range of possible outcomes which can be expected depending on the solver and its setup, and falls within the ranges consistent with the relevant laboratory data.
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A new algorithm for topology optimization using a level-set method
Samuel Amstutz,Heiko Andrä +1 more
TL;DR: This work proposes an evolution equation for the level-set function based on a generalization of the concept of topological gradient, which results in a new algorithm allowing for all kinds of topology changes.
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A multiscale approach for modeling progressive damage of composite materials using fast Fourier transforms
TL;DR: In this article, the authors proposed a more efficient multiscale approach similar to FE2, where nonlinear material effects caused by progressive damage behavior are captured directly on the discretized material level using simple isotropic continuum damage laws.
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Laguerre tessellations for elastic stiffness simulations of closed foams with strongly varying cell sizes
TL;DR: In this article, the dependency of the elastic stiffness, i.e., Young's modulus, of isotropic closed-cell foams on the cell size variation is studied by microstructural simulation.