135 citations · 736 across the 27 of their papers we have counts for
6 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…
Application and adaptation of the truncated Newton method for non-convex plasticity problems
F. Bormann, R. H. J. Peerlings, M. G. D. Geers
Small-scale plasticity problems are often characterised by different patterning behaviours ranging from macroscopic down to the atomistic scale. In successful models of such comple…
Micromorphic Computational Homogenization for Mechanical Metamaterials with Patterning Fluctuation Fields
O. Rokoš, M. M. Ameen, R. H. J. Peerlings +1
This paper presents a homogenization framework for elastomeric metamaterials exhibiting long-range correlated fluctuation fields. Based on full-scale numerical simulations on a cla…
On Micromechanical Parameter Identification With Integrated DIC and the Role of Accuracy in Kinematic Boundary Conditions
O. Rokoš, J. P. M. Hoefnagels, R. H. J. Peerlings +1
Integrated Digital Image Correlation (IDIC) is nowadays a well established full-field experimental procedure for reliable and accurate identification of material parameters. It is…
Size effects in nonlinear periodic materials exhibiting reversible pattern transformations
M. M. Ameen, O. Rokoš, R. H. J. Peerlings +1
This paper focuses on size effects in periodic mechanical metamaterials driven by reversible pattern transformations due to local elastic buckling instabilities in their microstruc…
A bulge test based methodology for characterizing ultra-thin buckled membranes
Salman Shafqat, Olaf van der Sluis, Marc Geers +1
Buckled membranes become ever more important with further miniaturization and development of ultra-thin film based systems. It is well established that the bulge test method, gener…