135 citations · 318 across the 8 of their papers we have counts for
8 papers
A Quasicontinuum Method with Optimized Local Maximum-Entropy Interpolation and Heaviside Enrichment for Heterogeneous Lattices
Benjamin Werner, Ondřej Rokoš, Jan Zeman
Lattice systems are effective for modeling heterogeneous materials, but their computational cost is often prohibitive. The QuasiContinuum (QC) method reduces this cost by interpola…
Towards active stiffness control in pattern-forming pneumatic metamaterials
Ondřej Faltus, Milan Jirásek, Martin Horák +4
Pattern-forming metamaterials feature microstructures specifically designed to change the material's macroscopic properties due to internal instabilities. These can be triggered ei…
Extended Quasicontinuum Methodology for Highly Heterogeneous Discrete Systems
Benjamin Werner, Ondřej Rokoš, Jan Zeman
Lattice networks are indispensable to study heterogeneous materials such as concrete or rock as well as textiles and woven fabrics. Due to the discrete character of lattices, they…
Bayesian Approach to Micromechanical Parameter Identification Using Integrated Digital Image Correlation
Liya Gaynutdinova, Ondřej Rokoš, Jan Havelka +2
Materials with heterogeneous structures exhibit complex physical processes such as delamination, cracks, and plasticity, which require micromechanical parameters for understanding.…
An adaptive variational Quasicontinuum methodology for lattice networks with localized damage
Ondřej Rokoš, Ron H. J. Peerlings, Jan Zeman +1
Lattice networks with dissipative interactions can be used to describe the mechanics of discrete meso-structures of materials such as 3D-printed structures and foams. This contribu…
Finite strain FFT-based non-linear solvers made simple
T. W. J. de Geus, J. Vondrejc, J. Zeman +2
Computational micromechanics and homogenization require the solution of the mechanical equilibrium of a periodic cell that comprises a (generally complex) microstructure. Technique…
A finite element perspective on non-linear FFT-based micromechanical simulations
Jan Zeman, Tom W. J. de Geus, Jaroslav Vondřejc +2
Fourier solvers have become efficient tools to establish structure-property relations in heterogeneous materials. Introduced as an alternative to the Finite Element (FE) method, th…
Novel anisotropic continuum-discrete damage model capable of representing localized failure of massive structures. Part II: identification from tests under heterogeneous stress field
A. Kucerova, D. Brancherie, A. Ibrahimbegovic +2
In Part I of this paper we have presented a simple model capable of describing the localized failure of a massive structure. In this part, we discuss the identification of the mode…