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Fracture as a material sink

Submitted by Konstantin Volokh on

Cracks are created by massive breakage of molecular or atomic bonds. The latter, in its turn, leads to the highly localized loss of material, which is the reason why even closed cracks are visible by a naked eye. Thus, fracture can be interpreted as the local material sink. Mass conservation is violated locally in the area of material failure. We consider a theoretical formulation of the coupled mass and momenta balance equations for a description of fracture.

White paper on failures of photovoltaic modules in the field - IEA supported by ERC

Submitted by marco.paggi on

ERC StG CA2PVM outreach activity on Photovoltaic durability and reliability research in collaboration with the International Energy Agency. 

An open access report for policy makers, PV investors and researchers interested in failure mechanisms of PV modules in the field has just been released and is downloadable from this link: 

http://www.iea-pvps.org/index.php?id=435

Design High Performance Centrifugal Compressor Vaned Diffusers

Submitted by ADT on

The design of the vaned diffuser of a centrifugal compressor is still based on a considerable amount of empiricism in its design methodology. Parameters such as area ratio and blockage, which are more relevant to conical diffusers, are used in conventional design practice.

PhD position in Multiscale Modeling of the Synthesis Process of Nanomaterials

Submitted by Kmomeni on

A PhD position is open for fall 2017 in Advanced Hierarchical Materials by Design Lab at Louisiana Tech University on multiscale modeling of the synthesis process of nanomaterials. The candidates must have a degree in Mechanical Engineering or related fields. Having a background in theoretical and computational mechanics, specifically continuum mechanics and finite element modeling, such as COMSOL, is a PLUS. Familiarity with the software package ParaView is desired. 

Postdoctoral Fellowship in Computational Mechanics

Submitted by daya.reddy on

Applications are invited for a postdoctoral fellowship, attached to the South African Research Chair in Computational Mechanics, and tenable at the Centre for Research in Computational and Applied Mechanics (CERECAM), University of Cape Town, South Africa.

 

Conditions of award: Eligible applicants must hold a PhD in computational mechanics or a related discipline. The PhD degree must have been granted within the last five years, or have been submitted for examination. In the latter case evidence to this effect must be provided.

 

Calculation of Compression Stresses for Open Cell Foams

Submitted by rezaalavi1000 on

I am investigating the effect of different structural properties on mechanical behavior of open-cell foams using compression tests. The structural properties that I have been considering are cell size, pore size, strut thickness as well as relative density. I am struggling on which surface area to consider for calculating the compression stress values, the "apparent" area which contains struts and pores (calculated by external dimensions of the specimens) or the "real" area which contains the struts only (and not pores).

PhD positions - IMT Lucca - Multiscale Analysis of Materials

Submitted by marco.paggi on

2017/18 PhD program at IMT School for Advanced Studies Lucca (Italy) - follow up announcement

Deadline for applications – July 18th 2017, 12 pm (midday) Italian time

 

Applications are being accepted for the 2017/18 PhD program at the IMT School for Advanced Studies Lucca (www.imtlucca.it), for the track on Computer Science and Systems Engineering (CSSE) focusing on Cyberphysical Systems.

 

As a mechanician, you will benefit from: