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How to get the FEM mesh from the optical micrography picture files with extension .tif or gif...

Submitted by hamanh on

Dear all,

 I am trying to simulate the local stresses and strains in a dual-phase metal and total behaviour of this metal in ABAQUS-6.7, what I have is the optical microscopic pictures of phases inside the metal which has been measured by some help of physicists. The pictures are of extension file name .tif ad .gif. How could I construct a mesh in Abaqus with this colorful pictures ?

Any help is appreciated much. Thanks in advance

Regards

Hamanh

The Fourth International Conference on Forensic Engineering

Submitted by Javi Rua on
conference
failure
engineering
forensic
structural
structure
collapse
dock
offshore
airport
railway
degradation
mechanical failure
consultant
contractor
engineer

The Fourth International Conference on Forensic Engineering

From Failure to Understanding



2nd – 4th December 2008

Institution of Civil Engineers

London, UK

Web 2.0 and Medicine

Submitted by MichelleLOyen on
education
web 2.0
bioengineering
medicine

I stumbled across this interesting blog post yesterday concerning an upcoming course on medicine via web 2.0.   It appeared quite interesting from several perspectives: first, medicine is often associated with being behind the times on technology but this all looks pretty current, secondly it may be the most comprehensive listing of topics I have seen where web 2.0 is applied to a single discipline, and finally it made me wonder what more we could do with mechanics via web 2.0 beyon

Effect of Surface Morphology on the Stability of Thin Nanostructures

Submitted by ashfaqadnan on
research
thin film
molecular dynamics
stability
Melting Point Depression

We have recently studied the atomic scale structural stability of
freestanding wavy gold (Au) nanofilms using molecular dynamics
simulations. In recent years, wavy or patterned structurs have shown great promise for applications in various emerging technologies including fuel cells
engineering, tissue engineering, biomedical engineering, creation
of counterfeit-resistant documents , nanolithography in microelectronics, optoelectronics, nanomachinesand many others. It is out of question that the success of these novel applications lies on one crucial factor – the

About a work on theoretical modeling

Submitted by rrahman on
research

Hi

I am a graduate student at University of Alabama. I am working on Stochastic modeling of damage evolution. Recently I have finished the mathematical/theoretical modeling section. I haven't done any Numerical or FEA simulation or experimental analysis. In this first phase I emphasized on the mathematical formulation and some short proofs. I wish to submit this work to a relevent journal. Can anyone please let me know if there is any suitable journal for this kind purely theoretical as well as solid/applied mechanics work related to stochastic modeling of damage mechanics?

Energy Balance Invariance for Interacting Particle Systems

Submitted by arash_yavari on
research
elasticity
energy balance
differential geometry
invariance
covariance

This paper studies the invariance of balance of

energy for a system of interacting particles under groups of

transformations. Balance of energy and its invariance is first

examined in Euclidean space. Unlike the case of continuous media,

it is shown that conservation and balance laws do not follow

from the assumption of invariance of balance of energy under

time-dependent isometries of the ambient space. However, the

postulate of invariance of balance of energy under arbitrary

Crack propagation in ABAQUS for a mode II kind of crack opening

Submitted by pthiyaga on

I am modelling a system subjected to a thermal shock, where in there are both vertical cracks (mode I ) and also infacial cracks (cracks that primarily fail by delaminaton-mode II)

 For vertical cracks, Iam able to get reasonable answers for mode I crack propagation in ABAQUS using a critical crack opening displacement criterion. However when it comes to interfacial crack, I dont know how to propagate it becz all the criterion in the debond subroutines in abaqus assume a mode I kind of crack opening.

Is my assumption wrong ? Can anyone help me out in this?

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