Anisotropic damage behavior in fiber-based materials : Modeling and experimental validation
(2023) In Journal of the Mechanics and Physics of Solids 181.- Abstract
This study presents a thermodynamically consistent continuum damage model for fiber-based materials that combines elastoplasticity and damage mechanisms to simulate the nonlinear mechanical behavior under in-plane loading. The anisotropic plastic response is characterized by a non-quadratic yield surface composed of six sub-surfaces, providing flexibility in defining plastic properties and accuracy in reproducing material response. The damage response is modeled based on detailed uniaxial monotonic and cyclic tension-loaded experiments conducted on specimens extracted from a paper sheet in various directions. To account for anisotropic damage, we propose a criterion consisting of three sub-surfaces representing tension damage in the... (More)
This study presents a thermodynamically consistent continuum damage model for fiber-based materials that combines elastoplasticity and damage mechanisms to simulate the nonlinear mechanical behavior under in-plane loading. The anisotropic plastic response is characterized by a non-quadratic yield surface composed of six sub-surfaces, providing flexibility in defining plastic properties and accuracy in reproducing material response. The damage response is modeled based on detailed uniaxial monotonic and cyclic tension-loaded experiments conducted on specimens extracted from a paper sheet in various directions. To account for anisotropic damage, we propose a criterion consisting of three sub-surfaces representing tension damage in the in-plane material principal directions and shear direction, where the damage onset is determined through cyclic loading tests. The damage evolution employs a normalized fracture energy concept based on experimental observation, which accommodates an arbitrary uniaxial loading direction. To obtain a mesh-independent numerical solution, the model is regularized using the implicit gradient enhancement by utilizing the linear heat equation solver available in commercial finite-element software. The study provides insights into the damage behavior of fiber-based materials, which can exhibit a range of failure modes from brittle-like to ductile, and establishes relationships between different length measurements.
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- author
- Alzweighi, Mossab ; Tryding, Johan LU ; Mansour, Rami ; Borgqvist, Eric LU and Kulachenko, Artem
- organization
- publishing date
- 2023-12
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Anisotropic damage, Anisotropic plasticity, Fiber-based materials, Gradient enhancement, Thermodynamically consistent
- in
- Journal of the Mechanics and Physics of Solids
- volume
- 181
- article number
- 105430
- publisher
- Elsevier
- external identifiers
-
- scopus:85171373528
- ISSN
- 0022-5096
- DOI
- 10.1016/j.jmps.2023.105430
- language
- English
- LU publication?
- yes
- id
- c66cbc56-2c3e-4942-b7a2-43cf848644b3
- date added to LUP
- 2024-01-12 09:59:52
- date last changed
- 2024-01-12 09:59:52
@article{c66cbc56-2c3e-4942-b7a2-43cf848644b3,
abstract = {{<p>This study presents a thermodynamically consistent continuum damage model for fiber-based materials that combines elastoplasticity and damage mechanisms to simulate the nonlinear mechanical behavior under in-plane loading. The anisotropic plastic response is characterized by a non-quadratic yield surface composed of six sub-surfaces, providing flexibility in defining plastic properties and accuracy in reproducing material response. The damage response is modeled based on detailed uniaxial monotonic and cyclic tension-loaded experiments conducted on specimens extracted from a paper sheet in various directions. To account for anisotropic damage, we propose a criterion consisting of three sub-surfaces representing tension damage in the in-plane material principal directions and shear direction, where the damage onset is determined through cyclic loading tests. The damage evolution employs a normalized fracture energy concept based on experimental observation, which accommodates an arbitrary uniaxial loading direction. To obtain a mesh-independent numerical solution, the model is regularized using the implicit gradient enhancement by utilizing the linear heat equation solver available in commercial finite-element software. The study provides insights into the damage behavior of fiber-based materials, which can exhibit a range of failure modes from brittle-like to ductile, and establishes relationships between different length measurements.</p>}},
author = {{Alzweighi, Mossab and Tryding, Johan and Mansour, Rami and Borgqvist, Eric and Kulachenko, Artem}},
issn = {{0022-5096}},
keywords = {{Anisotropic damage; Anisotropic plasticity; Fiber-based materials; Gradient enhancement; Thermodynamically consistent}},
language = {{eng}},
publisher = {{Elsevier}},
series = {{Journal of the Mechanics and Physics of Solids}},
title = {{Anisotropic damage behavior in fiber-based materials : Modeling and experimental validation}},
url = {{http://dx.doi.org/10.1016/j.jmps.2023.105430}},
doi = {{10.1016/j.jmps.2023.105430}},
volume = {{181}},
year = {{2023}},
}