research
The Shoelace Catastrophe
Readers of this site might be interested in the following paper appeared in the Proceedings of the Royal Society and has received considerable attention in the media:
The roles of impact and inertia in the failure of a shoelace knot
The paper discusses a mechanism for the the accidental untying of a shoelace knot that many of us, including me, experience on a daily basis. The failure is sudden and catastropic as can be seen in the following video:
International Journal of Structural Glass and Advanced Materials Research (IJSGAMR)
Dear all,
the International Journal of Structural Glass and Advanced Materials Research (IJSGAMR) is a peer-reviewed, open access journal which covers all aspects of theoretical and practical research of materials science.
Nonlinear Elastic Inclusions in Anisotropic Solids
In this paper we study the stress and deformation fields generated by nonlinear inclusions with finite eigenstrains in anisotropic solids. In particular, we consider finite eigenstrains in transversely isotropic spherical balls and orthotropic cylindrical bars made of both compressible and incompressible solids. We show that the stress field in a spherical inclusion with uniform pure dilatational eigenstrain in a spherical ball made of an incompressible transversely isotropic solid such that the material preferred direction is radial at any point is uniform and hydrostatic.
CFD
Is it possible to simulate air flow over objects of unconventional geometries (curved solids) using Abaqus?
Call for nomination of Extreme Mechanics Letters Young Investigator Award 2017
The third Extreme Mechanics Letters (EML) Young Investigator Award is provided by Elsevier to honor the best paper by a young scientist which has been published in volumes 9-12 EML from 2016 to 2017.
Printing, folding and assembly methods for forming 3D mesostructures in advanced materials
Emerging materials and methods for fabricating 3D micro- and nanostructures provide powerful capabilities of relevance across diverse areas of technology. This Review highlights the latest results and future trends associated with the most powerful methods in 3D printing, folding and assembly.
Read the article: Nature Reviews Materials 2, 17019 (2017) (Cover Feature Article)
Dynamic pattern of wrinkles in a dielectric elastomer
Dielectric elastomers undergo phase transitions between thick and thin (wrinkled) states due to their electromechanical behaviour.
Gradient plasticity crack tip characterization by means of the extended finite element method (MATLAB code included)
I hope some of you may find this work interesting, the X-FEM non-linear code developed (incorporating linear elasticity, J2 plasticity, and Strain Gradient Plasticity) can be downloaded from www.empaneda.com/codes
Gradient plasticity crack tip characterization by means of the extended finite element method
Emilio Martínez-Pañeda, Sundararajan Natarajan, Stéphane Bordas
Computational Mechanics (2017)