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A micromechanics-based recurrent neural networks model for path-dependent cyclic deformation of short fiber composites

International journal for numerical methods in engineering, 2023-05, Vol.124 (10), p.2292 [Peer Reviewed Journal]

ISSN: 1097-0207 ;ISSN: 0029-5981 ;EISSN: 1097-0207 ;DOI: 10.1002/nme.7211

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  • Title:
    A micromechanics-based recurrent neural networks model for path-dependent cyclic deformation of short fiber composites
  • Author: Friemann, J. ; Dashtbozorg, B. ; Fagerström, Martin ; Mirkhalaf, S. M.
  • Subjects: cyclic deformation ; deep learning ; micromechanics ; path-dependent plasticity ; recurrent neural networks ; short fiber composites
  • Is Part Of: International journal for numerical methods in engineering, 2023-05, Vol.124 (10), p.2292
  • Description: The macroscopic response of short fiber reinforced composites (SFRCs) is dependent on an extensive range of microstructural parameters. Thus, micromechanical modeling of these materials is challenging and in some cases, computationally expensive. This is particularly important when path-dependent plastic behavior is needed to be predicted. A solution to this challenge is to enhance micromechanical solutions with machine learning techniques such as artificial neural networks. In this work, a recurrent deep neural network model is trained to predict the path-dependent elasto-plastic stress response of SFRCs, given the microstructural parameters and the strain path. Micromechanical mean-field simulations are conducted to create a database for training the validating the model. The model gives very accurate predictions in a computationally efficient manner when compared with independent micromechanical simulations.
  • Language: English
  • Identifier: ISSN: 1097-0207
    ISSN: 0029-5981
    EISSN: 1097-0207
    DOI: 10.1002/nme.7211
  • Source: SWEPUB Freely available online
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