Completed research project

MAAXIMUS - More Affordable Aircraft through eXtended, Integrated and Mature nUmerical Sizing

Overview

  • Efficient 3D-solid finite elements for thin shell analysis
  • High performance computing on parallel and vector computers

Project description

Efficient 3D-solid finite elements for thin shell analysis

The major aims are: 

  • Improvement of element technology for three-dimensional finite elements in view of their application to both thick and thin shell analysis, combining shell efficiency and 3d accuracy.
  • Development of strategies and algorithms for improved through-the-thickness stress computation (transverse shear and normal stresses).
  • Development of methods and algorithms to facilitate analysis of layered shells (laminates), particularly in view of accuracy of interlaminar stresses.
  • Implementation into our in-house finite element package CCARAT in order to run numerical experiments and perform benchmark computations.

The special merit of the elements to develop should be that a unique approach for thin and thick (solid) areas is obtained, making a combination of shell elements and three-dimensional brick elements obsolete.

High performance computing on parallel and vector computers

  • To develop techniques for achieving high sustained performance on vector super computers in case of thin shell finite element analysis.
  • To develop a pre-conditioner for iterative solvers designed for vector computers which makes it possible to analyze thin shell structures using 3D discretisations, something that normally leads to severe round of errors and slow convergence.
  • To perform a series of benchmark analyses to demonstrate the efficiency of the developed software and the implementations.

Project data

Project titel:
More affordable aircraft through extended, integrated and mature numerical sizing
Funding:

European Commission's 7th Framework Program FP7 (2007-2013) under grant agreement n° 213371
Researcher:
Johannes Irslinger

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