Interfacial Fatigue and Discrete Interfacial Damage in a Finite Strain Thermomechanical Framework

We present a stabilized finite element method for thermomechanical problems in the class of materials with discrete microstructural interfaces that undergo interfacial fatigue and dominant interfacial damage. This formulation is applicable to polycrystalline solids, fibrous composites, filled elastomers, and additively manufactured layered materials. A finite strain formulation for monolithically coupled thermomechanical fields is presented where interfacial kinematic models for low-cycle fatigue and for strong interfacial discontinuities are variationally embedded at the interfaces. Formulation is written in the spatial configuration to account for large local strains and finite rotations of the interfaces. The method is implemented employing the family of low-order 3D Lagrange elements comprised of linear hexahedra and linear tetrahedra. A set of benchmark problems is presented to show the mathematical and algorithmic attributes of the method.

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Work Title Interfacial Fatigue and Discrete Interfacial Damage in a Finite Strain Thermomechanical Framework
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Open Access
Creators
  1. Pinlei Chen
  2. Ignasius P.A. Wijaya
  3. Arif Masud
Keyword
  1. Interfacial fatigue
  2. Interfacial damage
  3. Strong discontinuities
  4. Thermomechanical framework
  5. Finite rotations
  6. Coupled formulations
  7. Stabilized method
  8. Variational multiscale method
License In Copyright (Rights Reserved)
Work Type Article
Publisher
  1. International Journal of Structural Stability and Dynamics
Publication Date January 4, 2021
Publisher Identifier (DOI)
  1. https://doi.org/10.1142/S0219455420430130
Deposited July 19, 2022

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Version 1
published

  • Created
  • Added 1st_Proof_corrections_done_2043013.pdf
  • Added Creator Pinlei Chen
  • Added Creator Ignasius P.A. Wijaya
  • Added Creator Arif Masud
  • Published
  • Updated Keyword, Publisher, Publication Date Show Changes
    Keyword
    • Interfacial fatigue, Interfacial damage, Strong discontinuities, Thermomechanical framework, Finite rotations, Coupled formulations, Stabilized method, Variational multiscale method
    Publisher
    • SPE Western Regional/AAPG Pacific Section Joint Meeting
    • International Journal of Structural Stability and Dynamics
    Publication Date
    • 2020-12-01
    • 2021-01-04
  • Updated