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Subject:

FW: Error estimation for partition of unity enriched finite elements

From:

Andrew Chan <[log in to unmask]>

Reply-To:

Andrew Chan <[log in to unmask]>

Date:

Sun, 11 Oct 2009 16:31:33 +0100

Content-Type:

text/plain

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Parts/Attachments

text/plain (91 lines)

________________________________
From: Stephane P.A. BORDAS [[log in to unmask]]
Sent: 11 October 2009 09:58
To: Andrew Chan
Subject: Error estimation for partition of unity enriched finite elements

Dear collegue,

At the occasion of the IV European Congress on Computational Mechanics (ECCM IV): Solids, Structures and Coupled Problems in Engineering to be held at Palais des Congrès in Paris (France) on 16-21 May 2010, we (Stephane P. A. Bordas , Marc Duflot and Juan José Ródenas) are organizing a mini-symposium entitled

"Reliability, Error Estimation and Adaptivity for Automatic Simulations with Enriched Finite Element Methods (PUFEM/GFEM/XFEM)"

We believe that your contribution could greatly enrich the community and would be grateful if you considered this opportunity to present your recent results.

Here is the abstract for this symposium:

http://www.eccm2010.org/textes_topic_4.php#6


Please note that the final calls for papers for the congress will close on the 20th Nov, and abstracts may be submitted via the conference website:

http://www.eccm2010.org/

Please email this information to colleagues.

Best Regards



--------
ABSTRACT

The extended finite element method has become a competitive tool for the solution of problems with evolving discontinuities and singularities. In the field of structural reliability and failure, it has quickly been embraced by industry, with several existing and ongoing implementations in commercial software packages. The nature of the method, its elegance and relative closeness to the well­established finite element method have made it a competitive tool for industrial fracture mechanics.

Nonetheless, little work has been done to assess the discretisation error associated with extended finite elements or other partition of unity methods with extrinsic enrichment. The rapid uptake of such methods by industry will soon require adequate error estimation tools to be available to the analysts.

The approximation error should be evaluated and adaptive strategies developed. Moreover, the extended finite element method should be fully compared, both on the computational cost point of view and on that of accuracy, to alternate approximation tools (FEM with remeshing, meshfree methods, interface elements, discrete and lattice models, Trefftz formulations), which all have distinct advantages and drawbacks depending on the application. This minisymposium aims at increasing the community's understanding of the accuracy of extended finite element methods, with a particular emphasis on (but not a restriction to) fracture mechanics applications. The development of a posteriori error estimates and adaptive strategies, for instance is of key interest.
--------

========================================================================




Regards



--
Stéph

Stéphane P.A. Bordas
Cardiff School of Engineering
Theoretical, applied and computational mechanics
Cardiff University
Queen's Buildings
The Parade
CARDIFF CF24 3AA
Wales, UK.
Tel +44 (0)29 20875941.  Room number S/1.03.
http://www.researcherid.com/rid/A-1858-2009
http://www.civil.gla.ac.uk/~bordas http://www.engin.cf.ac.uk/whoswho/profile.asp?RecordNo=679

If you are not sure who you are, look at your children
SYMPOSIUM: 7th Euromech Solid Mechanics Conference MS-12Modeling of Biological Materials
ECCOMMAS Thematic Conference XFEM2009
WCCM2010 "Novel discretization techniques for moving discontinuities and singularities"
Funding for PhDs at Cardiff School of Engineering http://www.cardiff.ac.uk/engin/degreeprogrammes/research/fundingyourstudies/index.html



--
Stéph

Stéphane P.A. Bordas
Cardiff School of Engineering
Theoretical, applied and computational mechanics
Cardiff University
Queen's Buildings
The Parade
CARDIFF CF24 3AA
Wales, UK.
Tel +44 (0)29 20875941.  Room number S/1.03.
http://www.researcherid.com/rid/A-1858-2009
http://www.civil.gla.ac.uk/~bordas http://www.engin.cf.ac.uk/whoswho/profile.asp?RecordNo=679

If you are not sure who you are, look at your children
SYMPOSIUM: 7th Euromech Solid Mechanics Conference MS-12Modeling of Biological Materials
ECCOMMAS Thematic Conference XFEM2009
WCCM2010 "Novel discretization techniques for moving discontinuities and singularities"
Funding for PhDs at Cardiff School of Engineering http://www.cardiff.ac.uk/engin/degreeprogrammes/research/fundingyourstudies/index.html

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