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finite elements

Higher-order adaptive finite-element methods for Kohn-Sham density functional theory

Submitted by Vikram Gavini on

Dear Colleagues,

I wish to share with you our recent article on "Higher-order adaptive finite-element method for Kohn-Sham density functional theory", which will soon appear in the Journal of Computational Physics. Below is the abstract and attached is a preprint of the article.

P. Motamarri, N.R. Nowak, K. Leiter, J. Knap, V. Gavini, Higher-order adaptive finite-element methods for Kohn-Sham density functional theory, J. Comp. Phys. 253, 308-343 (2013).

Required - Verification test for Incompressible hyperelastic models

Submitted by Ashesh Sharma on
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Hi,



I am working with a finite element code implemented in C++ in my research group. Recentl I implemneted an incompressible finite strain element.

 Currently I am making use of verification tests to check whether my element runs accurately for various hyperelastic strain-energy models. I have succesfully completed a verification test using the Mooney-rivlin strain-energy density function. However, I have been unable to find verification/benchmark tests which I may use to test other strain-energy density functions.

deal.II finite element library course

Submitted by mac on

Dear fellow researcher in finite elements 

We will be hosting a 3 day course on the state-of-the-art open-source finite element library deal.II . The course will be run by Prof Wolfgang Bangerth from Texas A&M. It will take place in Cape Town, South Africa, from 5-7 August 2013. The course is aimed at postgraduate students and researchers who wish to learn the fundamentals of deal.II for use in their own research.

Finite element software with analytical sensitivity analysis

Submitted by edub on

 

 As structural optimization can be, of course, greatly sped up with the use of analytical sensitivies (analytical gradients) of the e.g. stress with respect to geometrical design variables, I wanted to inquire which FE software has the functionality.  The ones I am aware of: NASTRAN can and ANSYS cannot. How about others?

 Many thanks in advance!

 

 

Minisymposium on Electronic-Structure Methods at USNCCM12

Submitted by N. Sukumar on

Dear Colleagues:

We would like to invite you to submit a contribution to a minisymposium that we are organizing on Emerging Methods for Large-Scale Quantum-Mechanical Materials Calculations at the 12th US National Congress on Computational Mechanics, to be held July 22-25, 2013 in Raleigh, NC. This minisymposium aims to bring together leading researchers in this emerging area to discuss and exchange ideas on new methods developments for density-functional calculations, mathematical analysis, and applications of ab initio methods in electronic-structure calculations.

A review on multiscale methods for material modeling

Submitted by phunguyen on

Dear all,

Please find enclosed our paper which is published on Journal of Multiscale Modelling
Vol. 3, No. 4 (2011) 1–42 which gives an overview of state of the art multiscale techniques for material modeling. 

The paper discusses the following topics: homogenization, Representative volume element, computational homogenization (Fe2 methods) for both both bulk materials and strong discontinuities. 

I hope the paper is useful for beginners to the field.

All the bests, 

Workshop on Generalized Barycentric Coordinates in Geometry Processing and FEM/BEM

Submitted by N. Sukumar on

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                                         Call for participation

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Post-doctoral position at TU Darmstadt, Germany: Numerical methods in Solid Mechanics

Submitted by Dr. Carsten Broese on

A post-doctoral position is available at our continuum mechanics workgroup (Prof. Tsakmakis, TU Darmstadt, Germany) for developing user subroutines and user elements in finite element programs.

Experience in nonlinear finite element analysis, numerical methods in solid mechanics and FORTRAN 90 is needed.

If you are interested, please contact me, Dr. C. Broese,  broese [at] mechanik.tu-darmstadt.de

(Opening date: June, 1st 2012 - Closing date: June, 30th 2012)

Post Doc Position: Risk-based Selection of Constitutive Models for Geotechnical Analysis, EC Nantes (France)

Submitted by Panagiotis KOTRONIS on

Post Doc description:



Soil, as a typical natural material, has very complex behaviour which is very difficult to be accurately modelled. In geotechnical engineering, about half of the accidents are caused by insufficient designs. The soil’s constitutive model is the fundamental issue for modelling and analyzing soil-related engineering systems.