The Swedish
17^th century Vasa ship is unique in its kind and of high cultural
and historical interest. Therefore, interdisciplinary research teams are
constantly busy to keep the slowly degrading and deforming warship in good
geometrical shape. Initiated in 2012, the latest research project aims to
investigate creep in the Vasa ship and to develop a new support system for
improved dimensional stability. For this purpose a finite element model will be
created to assess the effect of varying geometrical parameters and material
properties. One of the key aspects is the influence of the joints of the ship

Dear all,

This paper might interest those engaged in the assessment of non-linear notch root stresses and strains. Please take a look, the paper is free.

http://www.onlinelibrary.wiley.com/doi/10.1111/ffe.12124/full

Bests 

Michele

European Commission' s JRC (Joint Research Centre) is organizing the 3rd workshop on physics based material models and experimental observations (http://iwpmeo.org/) in collaboration with University of Oxford, Max-Planck-Institut für Eisenforschung and Middle East Technical University. The workshop will be held in Izmir/Turkey on 2-4 June 2014.

In this paper we attempt to answer two questions on graphene from a mechanic’s viewpoint: why does this one-atom-thick monolayer have finite bending stiffness to ensure its stability? and what is its wrinkle mechanism? As for the first question, it is found that the repulsive residual internal moment in the bond angle can lead to a nonzero bending stiffness, which makes the graphene flat. Together with long-range attraction among atoms, such as van der Waals forces, a graphene prefers to have a self-buckling wrinkled configuration with many waves.

Dear everyone!    

The first issue in 2014 (Volume 30, Issue 1) of Acta Mechanica Sinica (AMS) is now online.   

Welcome to this SCI-indexed journal http://ams.cstam.org.cn for rapid publication of your exciting results.

_______________________________________________________________________________