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NEW 2012 ACTIVITIES OF IGF

Submitted by marco.paggi on

Dear Colleagues,

we would like to inform you that the Italian Group of Fracture (IGF), engaged in fostering the research in the fields of Fracture Mechanics and Structural Integrity at the national and international levels (IGF is the Italian chapter of the European Structural Integrity Society) has recently setup the following dissemination strategies and activities for 2012:

Electrical Self-Healing of Mechanically Damaged Zinc Oxide Nanobelts

Submitted by Xiaodong Li on

We report the observation of remarkable electrical self-healing in mechanically damaged ZnO nanobelts. Nanoindentation into intrinsically defect-free ZnO nanobelts induces deformation and crack damage, causing a dramatic electrical signal decrease. Two self-healing regimes in the nanoindented ZnO nanobelts are revealed. The physical mechanism for the observed phenomena is analyzed in terms of the nanoindentation-induced dislocations, the short-range atomic diffusion in nanostructures, and the local heating of the dislocation zone in the electrical measurement. For details, please see

Riemann-Cartan Geometry of Nonlinear Disclination Mechanics

Submitted by arash_yavari on

In the continuous theory of defects in nonlinear elastic solids, it is known that a distribution of disclinations leads, in general, to a non-trivial residual stress field. To study this problem we consider the particular case of determining the residual stress field of a cylindrically-symmetric distribution of parallel wedge disclinations. We first use the tools of differential geometry to construct a Riemaniann material manifold in which the body is stress-free. This manifold is metric compatible, has zero torsion, but has non-vanishing curvature.

Acta Mechanica Solida Sinica, Vol 24 issue 5 online now

Submitted by C Amss on

Dear colleague,   

The fifth issue in 2011 (Volume 24, Issue 5) of Acta Mechanica Solida Sinica (AMSS) is now online. 

Welcome to this SCI-indexed journal <http://ees.elsevier.com/camss/&gt; for rapid publication of your exciting results.

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Some papers relate to elastic/acoustic wave propagation, stress analysis of composites by effective mathematic methodologies

Submitted by LG on

Dear Colleagues,

   We would like to introduce a few work of us in the area of elastic/acoustic wave propagation as well as stress/displacement analysis of composites by some effective mathematical methodologies. Every year with one publication as so far, the problems and the methodologies are very different from each other. We greatly appreciate your interests in the papers and the discussions with us about the technical skills if you have:

Geometry and Mechanics

Submitted by Xiaobo Liu on

The following are two papers on the geometric formulation of classical mechanics. This is a follow up to some recent posting on iMechanica, as well as an attempt to bring about further discussion on the relationship and interaction between differential geometry and classical mechanics.

http://www.springerlink.com/content/t8707v6153351383/

http://www.springerlink.com/content/2rv8m7tnu2642487/