Blog posts
Contact stiffness of rough surfaces
Contact stiffness of multiscale surfaces by truncation analysis
In this concise piece of work, an effective method is shown to gain new understandings into the role of surface structure in the field of contact mechanics. In particular, normal contact stiffness is correlated to parameters of surfaces' fractal dimension and amplitude.
3D printing of simulated geomaterials
https://doi.org/10.1680/jgeot.15.P.034
This work, dating back to 2015 demonstrates the simulation of grain morphologies for subsequent fabrication of surrogate geomaterials
Abstract
FEA Engineering Opening at CAE Consultancy
FEA Simulation Engineer
We are looking for creative, talented and experienced Finite Element Analysis (FEA) and test data analysis FEA Engineer to Join our FEA Consulting Team.
Funded PhD Fellowship in Multiscale Computational Mechanics of Bone Fragility in T2 Diabetes
The Biomechanics Research Centre (BioMec) at NUI Galway is seeking applications for a funded-PhD position in Multiscale Mechanics of Bone Fragility in Type-2 Diabetes for a project funded by the European Research Council Starter Grant Scheme, under the supervision of Dr. Ted Vaughan (Google Scholar).
a response (dedicated to John Hutchinson) from Bob McMeeking, M.Ciavarella, G Cricrì and KS Kim on the MCD paradox on sliding and adhesive sphere ---- mixed mode fracture mechanics as applied to contact mechanics
Here you find a response to the MCD paradox from McMeeking, M.Ciavarella, G.Cricrì, and KS Kim. Here.
The paper is dedicated to number one of Mechanical engineering in the world, John Hutchinson from Harvard.
Curvature suppresses tensile wrinkles
Transverse wrinkles usually occur in a uniaxially tensile elastic membrane and will be smoothed upon excess stretching. This instability-restabilization response (isola-center bifurcation) can originate from the nonlinear competition between stretching energy and bending energy. Here, we find a crucial factor, the curvature, which can control effectively and precisely the wrinkling and smoothing regimes. When the sheet is bent, the regime of wrinkling amplitude versus membrane elongation is narrowed, with local wrinkling instability coupled with global bending.
electroadhesion of rough surfaces, with application to touch screen technology
Just submitted a paper on electroadhesion of rough surfaces, greatly simplifying the recent theory of the great Bo Persson , with hot application to touch screens : see here.
Comments welcome.