27 citations · 96 across the 9 of their papers we have counts for
9 papers · 1 filter
On the competition between dislocation transmission and crack nucleation at phase boundaries
F. Bormann, R. H. J. Peerlings, M. G. D. Geers
The interaction of dislocations with phase boundaries is a complex phenomenon, that is far from being fully understood. A 2D Peierls-Nabarro finite element (PN-FE) model for studyi…
The Peierls--Nabarro FE model in two-phase microstructures -- a comparison with atomistics
F. Bormann, K. Mikeš, O. Rokoš +1
This paper evaluates qualitatively as well as quantitatively the accuracy of a recently proposed Peierls--Nabarro Finite Element (PN-FE) model for dislocations by a direct comparis…
A computational approach towards modelling dislocation transmission across phase boundary
F. Bormann, R. H. J. Peerlings, M. G. D. Geers +1
To study the nanoscopic interaction between edge dislocations and a phase boundary within a two-phase microstructure the effect of the phase contrast on the internal stress field d…
Fracture initiation in multi-phase materials: a systematic three-dimensional approach using a FFT-based solver
T. W. J. de Geus, M. Cottura, B. Appolaire +2
This paper studies a two-phase material with a microstructure composed of a hard brittle reinforcement phase embedded in a soft ductile matrix. It addresses the full three-dimensio…
Systematic and objective identification of the microstructure around damage directly from images
T. W. J. de Geus, C. Du, J. P. M. Hoefnagels +2
An original experimental approach is presented to automatically determine the average phase distribution around damage sites in multi-phase materials. An objective measure is found…
Microstructural modeling of ductile fracture initiation in multi-phase materials
T. W. J. de Geus, R. H. J. Peerlings, M. G. D. Geers
The precise mechanisms underlying the failure of multi-phase materials may be strongly dependent on the material's microstructural morphology. Micromechanical modeling has provided…