On mode I/II interlaminar fracture toughness of double-sided-loop 2D woven laminated composites

Mingyang Shao; Guangming Zhou; Mudan Chen; Dandan Xing; Fangtian Hu; Ning Kuang; Deng'an Cai

doi:10.1016/j.compstruct.2022.115311

On mode I/II interlaminar fracture toughness of double-sided-loop 2D woven laminated composites

Mingyang Shao
, Guangming Zhou^*
, Mudan Chen
, Dandan Xing
, Fangtian Hu
, Ning Kuang
, Deng'an Cai^*

^*Corresponding author for this work

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

13 Citations (Scopus)

Abstract

Two-dimensional (2D) plain fabric is prone to delamination when subjected to bending, shear, impact loads. To enhance the interlayer properties of 2D plain fabrics, standing up loops is added. In this paper, specimens of the double-sided-loop 2D woven laminated composites (DWLC) and general 2D woven laminated composites (GWLC) are made for double cantilever beam (DCB) tests and end-notch flexure (ENF) tests to study their toughening mechanism. Test results show that the values of model I and mode II interlaminar fracture toughness are increased by 870% and 250% for the DWLC compared with the GWLC. Based on the three-linear cohesive zone model (CZM), finite element (FE) models of composite laminates specimens of DCB and ENF considering the phenomenon of interlaminar bridging are established, and numerical results are in good agreement with the experimental data, that verifies the accuracy of the FE models. Using the verified FE models, model I and mode II fracture properties of the DWLC specimens of DCB and ENF with different initial crack lengths are investigated, and the results show that the stress is redistributed and the load gradually decreases as the length of the prefabricated cracks increases. The obtained fracture toughness of the DWLC provides a reference for the toughening methods and the engineering applications of DWLC.

Original language	English
Article number	115311
Journal	Composite Structures
Volume	286
Early online date	29 Jan 2022
DOIs	https://doi.org/10.1016/j.compstruct.2022.115311
Publication status	Published - 2022

Bibliographical note

Funding Information:
This work was partially supported by the National Key R&D Program of China (Grant No. 2021YFF0501800), the National Natural Science Foundation of China (Grant No. 52005256), the Natural Science Foundation of Jiangsu Province (Grant No. BK20190394), the Jiangsu Post-doctoral Research Funding Program (Grant No. 2020Z437), Postgraduate Research & Practice Innovation Program of Jiangsu Province (Grant No. KYCX21_0185) and the Priority Academic Program Development of Jiangsu Higher Education Institutions.

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© 2022 Elsevier Ltd

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@article{fc8f0da723bd4357b09d1e82be6443ca,

title = "On mode I/II interlaminar fracture toughness of double-sided-loop 2D woven laminated composites",

abstract = "Two-dimensional (2D) plain fabric is prone to delamination when subjected to bending, shear, impact loads. To enhance the interlayer properties of 2D plain fabrics, standing up loops is added. In this paper, specimens of the double-sided-loop 2D woven laminated composites (DWLC) and general 2D woven laminated composites (GWLC) are made for double cantilever beam (DCB) tests and end-notch flexure (ENF) tests to study their toughening mechanism. Test results show that the values of model I and mode II interlaminar fracture toughness are increased by 870\% and 250\% for the DWLC compared with the GWLC. Based on the three-linear cohesive zone model (CZM), finite element (FE) models of composite laminates specimens of DCB and ENF considering the phenomenon of interlaminar bridging are established, and numerical results are in good agreement with the experimental data, that verifies the accuracy of the FE models. Using the verified FE models, model I and mode II fracture properties of the DWLC specimens of DCB and ENF with different initial crack lengths are investigated, and the results show that the stress is redistributed and the load gradually decreases as the length of the prefabricated cracks increases. The obtained fracture toughness of the DWLC provides a reference for the toughening methods and the engineering applications of DWLC.",

author = "Mingyang Shao and Guangming Zhou and Mudan Chen and Dandan Xing and Fangtian Hu and Ning Kuang and Deng'an Cai",

note = "Funding Information: This work was partially supported by the National Key R\&D Program of China (Grant No. 2021YFF0501800), the National Natural Science Foundation of China (Grant No. 52005256), the Natural Science Foundation of Jiangsu Province (Grant No. BK20190394), the Jiangsu Post-doctoral Research Funding Program (Grant No. 2020Z437), Postgraduate Research \& Practice Innovation Program of Jiangsu Province (Grant No. KYCX21\_0185) and the Priority Academic Program Development of Jiangsu Higher Education Institutions. Publisher Copyright: {\textcopyright} 2022 Elsevier Ltd",

year = "2022",

doi = "10.1016/j.compstruct.2022.115311",

language = "English",

volume = "286",

journal = "Composite Structures",

issn = "0263-8223",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - On mode I/II interlaminar fracture toughness of double-sided-loop 2D woven laminated composites

AU - Shao, Mingyang

AU - Zhou, Guangming

AU - Chen, Mudan

AU - Xing, Dandan

AU - Hu, Fangtian

AU - Kuang, Ning

AU - Cai, Deng'an

N1 - Funding Information: This work was partially supported by the National Key R&D Program of China (Grant No. 2021YFF0501800), the National Natural Science Foundation of China (Grant No. 52005256), the Natural Science Foundation of Jiangsu Province (Grant No. BK20190394), the Jiangsu Post-doctoral Research Funding Program (Grant No. 2020Z437), Postgraduate Research & Practice Innovation Program of Jiangsu Province (Grant No. KYCX21_0185) and the Priority Academic Program Development of Jiangsu Higher Education Institutions. Publisher Copyright: © 2022 Elsevier Ltd

PY - 2022

Y1 - 2022

N2 - Two-dimensional (2D) plain fabric is prone to delamination when subjected to bending, shear, impact loads. To enhance the interlayer properties of 2D plain fabrics, standing up loops is added. In this paper, specimens of the double-sided-loop 2D woven laminated composites (DWLC) and general 2D woven laminated composites (GWLC) are made for double cantilever beam (DCB) tests and end-notch flexure (ENF) tests to study their toughening mechanism. Test results show that the values of model I and mode II interlaminar fracture toughness are increased by 870% and 250% for the DWLC compared with the GWLC. Based on the three-linear cohesive zone model (CZM), finite element (FE) models of composite laminates specimens of DCB and ENF considering the phenomenon of interlaminar bridging are established, and numerical results are in good agreement with the experimental data, that verifies the accuracy of the FE models. Using the verified FE models, model I and mode II fracture properties of the DWLC specimens of DCB and ENF with different initial crack lengths are investigated, and the results show that the stress is redistributed and the load gradually decreases as the length of the prefabricated cracks increases. The obtained fracture toughness of the DWLC provides a reference for the toughening methods and the engineering applications of DWLC.

AB - Two-dimensional (2D) plain fabric is prone to delamination when subjected to bending, shear, impact loads. To enhance the interlayer properties of 2D plain fabrics, standing up loops is added. In this paper, specimens of the double-sided-loop 2D woven laminated composites (DWLC) and general 2D woven laminated composites (GWLC) are made for double cantilever beam (DCB) tests and end-notch flexure (ENF) tests to study their toughening mechanism. Test results show that the values of model I and mode II interlaminar fracture toughness are increased by 870% and 250% for the DWLC compared with the GWLC. Based on the three-linear cohesive zone model (CZM), finite element (FE) models of composite laminates specimens of DCB and ENF considering the phenomenon of interlaminar bridging are established, and numerical results are in good agreement with the experimental data, that verifies the accuracy of the FE models. Using the verified FE models, model I and mode II fracture properties of the DWLC specimens of DCB and ENF with different initial crack lengths are investigated, and the results show that the stress is redistributed and the load gradually decreases as the length of the prefabricated cracks increases. The obtained fracture toughness of the DWLC provides a reference for the toughening methods and the engineering applications of DWLC.

U2 - 10.1016/j.compstruct.2022.115311

DO - 10.1016/j.compstruct.2022.115311

M3 - Article (Academic Journal)

SN - 0263-8223

VL - 286

JO - Composite Structures

JF - Composite Structures

M1 - 115311

ER -

On mode I/II interlaminar fracture toughness of double-sided-loop 2D woven laminated composites

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