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Leon Mishnaevsky's blog

International Symposium on Leading Edge Erosion of Wind Turbine Blades, 4-6. February 2020, Roskilde Denmark

Submitted by Leon Mishnaevsky on

Dear colleagues,

We would like to invite you to participate at the International Symposium on Leading Edge Erosion of Wind Turbine Blades, which will take place February 4-6, 2020, in the Niels Bohr Auditorium, DTU Risø Campus, Roskilde, Denmark.

9th International Conference on Computational Methods, Rome, Italy, August 6-10, 2018

Submitted by Leon Mishnaevsky on

ICCM9- Roma - 6-10th August 2018

The International Conference for Computation Methods (ICCM)  series were initiated by Professor GR Liu (University of Cincinnati OH, USA in Singapore in 2004 it has become one of the major international conferences in the related areas.

Abaqus/Python - commands to find nearest node to a given point

Submitted by Leon Mishnaevsky on

Hi,
I need to write a python comman code to find a node (in a given set), nearest to a given point.
The code now looks as follows:
import sys
sys.path.insert(10, 
r'c:/SIMULIA/Abaqus/6.13-3/code/python/lib/abaqus_plugins/findNearestNode')
import nearestNodeModule
nearestNodeModule.hideTextAndArrow()
a = mdb.models['FibreModel'].rootAssembly
n1 = a.instances['Fibre0-1'].nodes
pickedSelectedNodes = n1[0:599]
g=nearestNodeModule.findNearestNode(xcoord=101, ycoord=106, zcoord=58, name='', selectedNodes=pickedSelectedNodes, instanceName="'Fibre2-1'")

Computational micromechanics of composites: Postdoc stay (10 months) at Technical University of Denmark, Department of Wind Energy

Submitted by Leon Mishnaevsky on

<p>Applications are invited from suitably qualified candidates for a POSTDOCTORAL STAY (10 months) at Technical University of Denmark, Department of Wind Energy We offer: - 10 months postdoc stay at DTU, Risø Campus - Employment in accordance with the terms valid for scientific staff at DTU Necessary knowledge: - mechanics of materials /computational micromechanics (preferably, unit cell modelling) - finite element simulations (ABAQUS) - programming in a higher-level language (C, Fortran, Python). Necessary background: PhD.

How to investigate the thin layer between graphene sheets and surrrounding polymer (epoxy)?

Submitted by Leon Mishnaevsky on

Hi,

There is an assumption that nanoparticles (e.g., graphene or CNT) change the local properties of polymer (here, epoxy) around them, perturbing the polymer chains. Which (not too expensive) methods exist to explore this assumption experimentally? How can I study the atomistic scale structure of polymer around the graphene sheets, and compare it with rest of polymer?

 

 

Leon

 

Micromechanics of hierarchical materials: a brief overview

Submitted by Leon Mishnaevsky on

A short overview of micromechanical models of hierarchical materials (hybrid composites, biomaterials, fractal materials, etc.) is given. Several examples of the modeling of strength and damage in hierarchical materials are summarized, among them, 3D FE model of hybrid composites with nanoengineered matrix, fiber bundle model of UD composites with hierarchically clustered fibers and 3D multilevel model of wood considered as a gradient, cellular material with layered composite cell walls.