Virtual Characterization of Nonlocal Continuum Damage Model Parameters using a High Fidelity Finite Element Model

Johannes  Reiner; Xiaodong Xu; Navid Zobeiry; Reza Vaziri; Stephen R Hallett; Michael R Wisnom

doi:10.1016/j.compstruct.2020.113073

Virtual Characterization of Nonlocal Continuum Damage Model Parameters using a High Fidelity Finite Element Model

Johannes Reiner^*
, Xiaodong Xu
, Navid Zobeiry
, Reza Vaziri
, Stephen R Hallett
, Michael R Wisnom

^*Corresponding author for this work

Research output: Contribution to journal › Article (Academic Journal) › peer-review

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Abstract

A virtual finite element framework is presented to provide the transition from a high fidelity model to a more computationally efficient continuum model for simulating fibre-dominated damage behavior in composite laminates subjected to tensile loadings. The high fidelity method in LS-DYNA is based on the use of cohesive interface elements to simulate both intra-laminar matrix cracks and delamination. Applied to IM7/8552 carbon fibre reinforced plastic laminates in over-height compact tension (OCT) tests, this modeling strategy is used to determine the effective damage parameters for the nonlocal continuum damage model, CODAM2, implemented as MAT219 in LS-DYNA. The prediction of CODAM2 is thoroughly assessed against quantitative and qualitative results obtained from the high fidelity model. Furthermore, the characterized CODAM2 model is applied to simulations of large-scale OCT, open-hole tension (OHT) and center-notched tension (CNT) specimens and results are compared to corresponding experimental data. Due to its nonlocal feature to track the crack trajectory without the need to align the mesh with fibre orientation, the continuum damage model CODAM2 is able to accurately predict the structural response in all large-scale OCT, OHT and CNT test cases with significant computational efficiency.

Original language	English
Article number	113073
Number of pages	16
Journal	Composite Structures
Volume	256
Early online date	9 Oct 2020
DOIs	https://doi.org/10.1016/j.compstruct.2020.113073
Publication status	Published - 15 Jan 2021

Bibliographical note

Funding Information:
This study has been carried out as part of collaboration on joint projects of interest between theComposites Research Network (CRN) at the University of British Columbia and the Advanced Composites Centre for Innovation and Science (ACCIS) at the University of Bristol. The authors would like to thank Prof. Anoush Poursartip and Dr. Alireza Forghani for their contributions to CODAM2 and many insightful discussions. The partial financial support of this research by the Natural Sciences and Engineering Research Council of Canada (NSERC) is also gratefully acknowledged.

Funding Information:
This study has been carried out as part of collaboration on joint projects of interest between theComposites Research Network (CRN) at the University of British Columbia and the Advanced Composites Centre for Innovation and Science (ACCIS) at the University of Bristol. The authors would like to thank Prof. Anoush Poursartip and Dr. Alireza Forghani for their contributions to CODAM2 and many insightful discussions. The partial financial support of this research by the Natural Sciences and Engineering Research Council of Canada (NSERC) is also gratefully acknowledged.

Publisher Copyright:
© 2020 Elsevier Ltd

Keywords

Finite Element Analysis
Crack Modeling
Continuum Damage Mechanics
Laminates

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10.1016/j.compstruct.2020.113073

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title = "Virtual Characterization of Nonlocal Continuum Damage Model Parameters using a High Fidelity Finite Element Model",

abstract = "A virtual finite element framework is presented to provide the transition from a high fidelity model to a more computationally efficient continuum model for simulating fibre-dominated damage behavior in composite laminates subjected to tensile loadings. The high fidelity method in LS-DYNA is based on the use of cohesive interface elements to simulate both intra-laminar matrix cracks and delamination. Applied to IM7/8552 carbon fibre reinforced plastic laminates in over-height compact tension (OCT) tests, this modeling strategy is used to determine the effective damage parameters for the nonlocal continuum damage model, CODAM2, implemented as MAT219 in LS-DYNA. The prediction of CODAM2 is thoroughly assessed against quantitative and qualitative results obtained from the high fidelity model. Furthermore, the characterized CODAM2 model is applied to simulations of large-scale OCT, open-hole tension (OHT) and center-notched tension (CNT) specimens and results are compared to corresponding experimental data. Due to its nonlocal feature to track the crack trajectory without the need to align the mesh with fibre orientation, the continuum damage model CODAM2 is able to accurately predict the structural response in all large-scale OCT, OHT and CNT test cases with significant computational efficiency.",

keywords = "Finite Element Analysis, Crack Modeling, Continuum Damage Mechanics, Laminates",

author = "Johannes Reiner and Xiaodong Xu and Navid Zobeiry and Reza Vaziri and Hallett, \{Stephen R\} and Wisnom, \{Michael R\}",

note = "Funding Information: This study has been carried out as part of collaboration on joint projects of interest between theComposites Research Network (CRN) at the University of British Columbia and the Advanced Composites Centre for Innovation and Science (ACCIS) at the University of Bristol. The authors would like to thank Prof. Anoush Poursartip and Dr. Alireza Forghani for their contributions to CODAM2 and many insightful discussions. The partial financial support of this research by the Natural Sciences and Engineering Research Council of Canada (NSERC) is also gratefully acknowledged. Funding Information: This study has been carried out as part of collaboration on joint projects of interest between theComposites Research Network (CRN) at the University of British Columbia and the Advanced Composites Centre for Innovation and Science (ACCIS) at the University of Bristol. The authors would like to thank Prof. Anoush Poursartip and Dr. Alireza Forghani for their contributions to CODAM2 and many insightful discussions. The partial financial support of this research by the Natural Sciences and Engineering Research Council of Canada (NSERC) is also gratefully acknowledged. Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",

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doi = "10.1016/j.compstruct.2020.113073",

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AU - Reiner, Johannes

AU - Xu, Xiaodong

AU - Zobeiry, Navid

AU - Vaziri, Reza

AU - Hallett, Stephen R

AU - Wisnom, Michael R

N1 - Funding Information: This study has been carried out as part of collaboration on joint projects of interest between theComposites Research Network (CRN) at the University of British Columbia and the Advanced Composites Centre for Innovation and Science (ACCIS) at the University of Bristol. The authors would like to thank Prof. Anoush Poursartip and Dr. Alireza Forghani for their contributions to CODAM2 and many insightful discussions. The partial financial support of this research by the Natural Sciences and Engineering Research Council of Canada (NSERC) is also gratefully acknowledged. Funding Information: This study has been carried out as part of collaboration on joint projects of interest between theComposites Research Network (CRN) at the University of British Columbia and the Advanced Composites Centre for Innovation and Science (ACCIS) at the University of Bristol. The authors would like to thank Prof. Anoush Poursartip and Dr. Alireza Forghani for their contributions to CODAM2 and many insightful discussions. The partial financial support of this research by the Natural Sciences and Engineering Research Council of Canada (NSERC) is also gratefully acknowledged. Publisher Copyright: © 2020 Elsevier Ltd

PY - 2021/1/15

Y1 - 2021/1/15

N2 - A virtual finite element framework is presented to provide the transition from a high fidelity model to a more computationally efficient continuum model for simulating fibre-dominated damage behavior in composite laminates subjected to tensile loadings. The high fidelity method in LS-DYNA is based on the use of cohesive interface elements to simulate both intra-laminar matrix cracks and delamination. Applied to IM7/8552 carbon fibre reinforced plastic laminates in over-height compact tension (OCT) tests, this modeling strategy is used to determine the effective damage parameters for the nonlocal continuum damage model, CODAM2, implemented as MAT219 in LS-DYNA. The prediction of CODAM2 is thoroughly assessed against quantitative and qualitative results obtained from the high fidelity model. Furthermore, the characterized CODAM2 model is applied to simulations of large-scale OCT, open-hole tension (OHT) and center-notched tension (CNT) specimens and results are compared to corresponding experimental data. Due to its nonlocal feature to track the crack trajectory without the need to align the mesh with fibre orientation, the continuum damage model CODAM2 is able to accurately predict the structural response in all large-scale OCT, OHT and CNT test cases with significant computational efficiency.

AB - A virtual finite element framework is presented to provide the transition from a high fidelity model to a more computationally efficient continuum model for simulating fibre-dominated damage behavior in composite laminates subjected to tensile loadings. The high fidelity method in LS-DYNA is based on the use of cohesive interface elements to simulate both intra-laminar matrix cracks and delamination. Applied to IM7/8552 carbon fibre reinforced plastic laminates in over-height compact tension (OCT) tests, this modeling strategy is used to determine the effective damage parameters for the nonlocal continuum damage model, CODAM2, implemented as MAT219 in LS-DYNA. The prediction of CODAM2 is thoroughly assessed against quantitative and qualitative results obtained from the high fidelity model. Furthermore, the characterized CODAM2 model is applied to simulations of large-scale OCT, open-hole tension (OHT) and center-notched tension (CNT) specimens and results are compared to corresponding experimental data. Due to its nonlocal feature to track the crack trajectory without the need to align the mesh with fibre orientation, the continuum damage model CODAM2 is able to accurately predict the structural response in all large-scale OCT, OHT and CNT test cases with significant computational efficiency.

KW - Finite Element Analysis

KW - Crack Modeling

KW - Continuum Damage Mechanics

KW - Laminates

U2 - 10.1016/j.compstruct.2020.113073

DO - 10.1016/j.compstruct.2020.113073

M3 - Article (Academic Journal)

SN - 0263-8223

VL - 256

JO - Composite Structures

JF - Composite Structures

M1 - 113073

ER -

Virtual Characterization of Nonlocal Continuum Damage Model Parameters using a High Fidelity Finite Element Model

Abstract

Bibliographical note

Keywords

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