Zobrazeno 1 - 10
of 104
pro vyhledávání: '"Kiefer, Bjoern"'
Capturing and predicting the effective mechanical properties of highly porous cellular media still represents a significant challenge for the research community, due to their complex structural interdependencies and known size effects. Micromorphic t
Externí odkaz:
http://arxiv.org/abs/2403.10532
Sparse direct linear solvers are at the computational core of domain decomposition preconditioners and therefore have a strong impact on their performance. In this paper, we consider the Fast and Robust Overlapping Schwarz (FROSch) solver framework o
Externí odkaz:
http://arxiv.org/abs/2310.12659
This paper describes a modification of Ehlers' model for the inelastic behavior of granular media. The modified model can be applied for describing the inelastic behavior of porous media. The key feature is a subtle change of the yield potential, whi
Externí odkaz:
http://arxiv.org/abs/2307.10216
The usage of numerical homogenization to obtain structure-property relations using the finite element method at both the micro and macroscale has gained much interest in the research community. However the computational cost of this so called FE$^2$
Externí odkaz:
http://arxiv.org/abs/2306.02687
We consider the swelling of hydrogels as an example of a chemo-mechanical problem with strong coupling between the mechanical balance relations and the mass diffusion. The problem is cast into a minimization formulation using a time-explicit approach
Externí odkaz:
http://arxiv.org/abs/2212.00801
Autor:
Kiefer, Bjoern
A thermodynamics-based constitutive model is derived which predicts the nonlinear strain and magnetization response that magnetic shape memory alloys (MSMAs) exhibit when subjected to mechanical and magnetic loads. The model development is conducted
Externí odkaz:
http://hdl.handle.net/1969.1/4712
Autor:
Firouzeh, Shahin Takht, Abendroth, Martin, Wetzig, Tony, Aneziris, Christos G., Kiefer, Bjoern
Publikováno v:
In Journal of the European Ceramic Society March 2025 45(3)
Autor:
von Oertzen, Vincent, Kiefer, Bjoern
Publikováno v:
In Journal of the Mechanics and Physics of Solids February 2025 195
Publikováno v:
Computer Methods in Applied Mechanics and Engineering 382 (2021), 113886
The FE$^2$ method is a very flexible but computationally expensive tool for multiscale simulations. In conventional implementations, the microscopic displacements are iteratively solved for within each macroscopic iteration loop, although the macrosc
Externí odkaz:
http://arxiv.org/abs/2101.01802
Publikováno v:
In Computer Methods in Applied Mechanics and Engineering 1 January 2024 418 Part A