CU-Boulder ASEN 5519 - A multi-scale finite element model for inelastic behavior (6 pages)

Previewing pages 1, 2 of 6 page document View the full content.
View Full Document

A multi-scale finite element model for inelastic behavior



Previewing pages 1, 2 of actual document.

View the full content.
View Full Document
View Full Document

A multi-scale finite element model for inelastic behavior

66 views

Other


Pages:
6
School:
University of Colorado at Boulder
Course:
Asen 5519 - Selected Topics
Selected Topics Documents

Unformatted text preview:

A multi scale finite element model for inelastic behavior of heterogeneous structures and its parallel computing implementation Damijan Markovica b Adnan Ibrahimbegovica Rainer Niekampc and Hermann Matthiesc a Ecole Normale Supe rieure de Cachan LMT Cachan 61 avenue du pre sident Wilson 94235 Cachan France e mail ai lmt ens cachan fr fax 33 0 1 47 40 22 40 b Faculty of Science and Technology University of Ljubljana Slovenia c Institute of Scientific Computing Technical University of Braunschweig Germany April 8 2004 Abstract In this work we consider a strongly coupled multi scale problem in the context of the inelastic structural mechanics Supposing the significant but not neglecting ratio between scales we replace the somehow more standard phenomenological and analytical homogenization approaches by a lower level numerical description of the micro structural behavior More particularly we take continuum damage and plasticity finite element method model to describe the matrix inclusion type of micro structure e g porous or hard inclusion composite The micro FEM model is then coupled to the macro FEM model through the localized Lagrange multiplier approach as introduced in 5 This multi scale strategy being very well adapted to parallel computing we parallelized the algorithm using the Communication Template Library CTL a recent development of the institute of Scientifc Computing in Braunschweig Germany The efficiency of the implementation is shown on numerical large scale examples 1 Introduction Composite material have always had an important role in structural engineering Either involuntarily because the material processing cannot always 1 avoid some final defaults like porosity or voluntarily because one wants to improve material resistance like in hard inclusion composites e g metal composites concrete Unfortunately heterogeneous nature of materials induces more significant heterogeneous field solutions in a structural loading framework and consequently makes



View Full Document

Access the best Study Guides, Lecture Notes and Practice Exams

Loading Unlocking...
Login

Join to view A multi-scale finite element model for inelastic behavior and access 3M+ class-specific study document.

or
We will never post anything without your permission.
Don't have an account?
Sign Up

Join to view A multi-scale finite element model for inelastic behavior and access 3M+ class-specific study document.

or

By creating an account you agree to our Privacy Policy and Terms Of Use

Already a member?