Coupled systems mechanics

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A FE2 multi-scale implementation for modeling composite materials on distributed architectures

  • Giuntoli, Guido (Computer Application in Science & Engineering Department, Barcelona Supercomputing Center) ;
  • Aguilar, Jimmy (Computer Application in Science & Engineering Department, Barcelona Supercomputing Center) ;
  • Vazquez, Mariano (Computer Application in Science & Engineering Department, Barcelona Supercomputing Center) ;
  • Oller, Sergio (International Centre for Numerical Methods in Engineering, Universitat Politecnica de Catalunya) ;
  • Houzeaux, Guillaume (Computer Application in Science & Engineering Department, Barcelona Supercomputing Center)
  • Received : 2018.09.30
  • Accepted : 2019.02.25
  • Published : 2019.04.25
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Abstract

This work investigates the accuracy and performance of a $FE^2$ multi-scale implementation used to predict the behavior of composite materials. The equations are formulated assuming the small deformations solid mechanics approach in non-linear material models with hardening plasticity. The uniform strain boundary conditions are applied for the macro-to-micro transitions. A parallel algorithm was implemented in order to solve large engineering problems. The scheme proposed takes advantage of the domain decomposition method at the macro-scale and the coupling between each subdomain with a micro-scale model. The precision of the method is validated with a composite material problem and scalability tests are performed for showing the efficiency.

Keywords

References

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  1. Stiffness of hybrid systems with and without pre-stressing vol.9, pp.2, 2020, https://doi.org/10.12989/csm.2020.9.2.147