Gallery

Hierarchical matrix with its structure & values (H-matrix) associated with a clustered mesh of a dragon's figure (January, 2025).

Flux through a self-affine contact spot (PhD thesis of Paul Beguin, 2023).

Shear of 3-level Menger sponge: finite element simulation

Multiple contact clusters in a periodic domain not far before the percolation; FFT simulations.

An intersonic slip pulse, which transforms into an opening pulse at frictional interface between an elastic layer and a rigid flat (PhD thesis of J. Durand).

Elasto-plastic contact between a rough metallic surface (finite strain plasticity) and a rigid flat surface; residual von Mises stress; finite element simulations.

Finite element simulation at microstructural scale of WC/Co hardmetal composite impacting a rock asperity (PhD thesis of D. Tkalich).

Boundary + finite element simulation of the fluid flow in the contact interface at the roughness scale; contact area and trapped fluid zones are shown.

Model rough-contact conductivity with contact spots produced by several asperities: finite element simulation.

Elastic wave propagation in an isotropic medium with free surfaces induced by an oblique impact; finite element simulation.

Finite element simulation of twisting of a multi-strand cable with full handling of contact between individual strand.

Multi-scale nature of the fluid flow in contact interfaces: four scales are shown.

Plasticity localization in twisting a long thin walled tube using Anand's finite strain plasticity with updated Lagrangian formulation. Mesh: 18120 nodes, 9000 elements.

Plasticity localization pattern in twisting short elasto plastic thin walled tube using Anand finite strain plasticity and updated Lagrangian formulation Due to rotation the cylinder expands on one side, which allows to plot nice localization patterns extending from the center. The magnification factor is 30. Mesh: 15 000 elements, 30 300 nodes.