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Finance and Mechanics

Submitted by Stefano Galiasso on

 

Recent events about the financial crisis and generally spread turmoils on Economics and Financial Environments  lead me to these conclusions.

Critical Speed:  informations, a key issue on finance, reached a critical speed. Maybe this is the "first" critical speed of the system. Speed of informations has reached the same order of magnitude of people's judgement (executives and investors more than others) so there's a sort of over-reaction about actual events.

Modeling of large strain deformation in Abaqus

Submitted by hadi on
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Hi everybody,

I'm trying to model large strain deformations in Abaqus by writing a user defined material code in order to implement the governing constitutive equations of the material. As far as I know, Cauchy stress tensor should be used in the model to presume non-linear finite elements, but I don't know how one can implement Cauchy stress tensor in a UMAT used by Abaqus.

Thanks,

Hadi

An inverse-pole-figure method for analysis of polycrystalline ferroelectrics/ferroelastics

Submitted by Faxin Li on

 Recently, enlightened by the definition of inverse pole figure in Materials Science, I proposed an inverse-pole-figure (IPF) method for analysis of domain switching in polycrystalline ferroelectrics/ferroelastics.

GEM Princeton NJ Opportunity

Submitted by Jianxu Shi on

Dear all,

This is an immediate position for office in Princeton NJ; GC is preferred but not required.  Feel free to forward. Applicant please contact Dr. Jim Lua (jlua [at] gem-consultant.com) or me (jshi [at] gem-consultant.com).

 Best,

Jianxu (Jay) Shi

 

GEM Princeton NJ Opportunity -- Senior Research Engineer

Modeling masonry in ABAQUS

Submitted by dhruba on

I am quite new to ABAQUS and trying to model structural masonry.I am facing difficulties in defining material property and analysis procedure.I was wondering if anybody has worked on this particular area and provide me with some useful resources.

 Any Help in this regard will be highly appreciated

Thanks and Regards,

Dhruba

Modal analysis in ANSYS

Submitted by hijazi on

Hi all,

I am doing modal analysis of a box placed at the table. The box is containing the electronics components inside. The electronic components are fragile to vibrations. Now i have designed the box in Pro E and have imported it in ANSY. The box is connected with the table at four corner points from the base. Note that the base of box is not placed at the table rather box is connected to table at four corner points.

Mechanics of buckled carbon nanotubes on elastomeric substrates

Submitted by Jianliang Xiao on

We have studied the scaling of controlled nonlinear buckling processes in materials with dimensions in the molecular range (i.e., ~1 nm) through experimental and theoretical studies of buckling in individual single-wall carbon nanotubes on substrates of poly(dimethylsiloxane). The results show not only the ability to create and manipulate patterns of buckling at these molecular scales, but also, that analytical continuum mechanics theory can explain, quantitatively, all measurable aspects of this system.