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    Rights statement: This is the author’s version of a work that was accepted for publication in Composite Structures. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work 3since it was submitted for publication. A definitive version was subsequently published in Composite Structures, 212, 2019 DOI: 10.1016/j.compstruct.2019.01.031

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A multi-scale model for studying failure mechanisms of composite wind turbine blades

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A multi-scale model for studying failure mechanisms of composite wind turbine blades. / Ye, Junjie; Chu, C.; Cai, H.; Hou, X.; Shi, B.; Tian, S.; Chen, X.; Ye, J.

In: Composite Structures, Vol. 212, 15.03.2019, p. 220-229.

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Ye, Junjie ; Chu, C. ; Cai, H. ; Hou, X. ; Shi, B. ; Tian, S. ; Chen, X. ; Ye, J. / A multi-scale model for studying failure mechanisms of composite wind turbine blades. In: Composite Structures. 2019 ; Vol. 212. pp. 220-229.

Bibtex

@article{2f9198ed5b6249d38bb5ae255351de7e,
title = "A multi-scale model for studying failure mechanisms of composite wind turbine blades",
abstract = "Composite structures have been widely used in wind turbine equipment for their high stiffness to mass ratio and high strength. A major concern in the use of composite materials is their susceptibility to various micro damage, such as fiber breakage and matrix crack, which will lead to macroscopic structural fracture. In this paper, a multi-scale modeling strategy is proposed to investigate failure mechanisms and damage evolution of composite blades with initial defects from microscopic damage (including fiber fractures and matrix cracks) to macroscopic fracture. At the microscopic scale, an isoparametric micromechanical model is developed to calculate microscopic stresses and simulate microscopic damage. At the laminar scale, the classic laminate theory is employed to evaluate the laminate stiffness. At the structural scale, a reverse modeling technology is proposed to accurately acquire structural dimensions of a wind turbine blade, and a macroscopic 3D model is implemented into ANSYS/LS-DYNA software. By comparing with the experimental data, it is demonstrated that the proposed multi-scale method is suitable to predict mechanical properties of complex composite structures effectively.",
keywords = "Composites, Damage evolution, FBG sensors, Multiscale model, Wind turbine blade, Composite materials, Cracks, Fracture, Mechanical properties, Stiffness, Structure (composition), Turbomachine blades, Wind turbines, Complex composite structures, Composite wind turbine blade, FBG sensor, Macroscopic fractures, Micro-mechanical modeling, Multi-scale Modeling, Wind turbine blades, Turbine components",
author = "Junjie Ye and C. Chu and H. Cai and X. Hou and B. Shi and S. Tian and X. Chen and J. Ye",
note = "This is the author{\textquoteright}s version of a work that was accepted for publication in Composite Structures. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work 3since it was submitted for publication. A definitive version was subsequently published in Composite Structures, 212, 2019 DOI: 10.1016/j.compstruct.2019.01.031",
year = "2019",
month = mar,
day = "15",
doi = "10.1016/j.compstruct.2019.01.031",
language = "English",
volume = "212",
pages = "220--229",
journal = "Composite Structures",
issn = "0263-8223",
publisher = "Elsevier Ltd",

}

RIS

TY - JOUR

T1 - A multi-scale model for studying failure mechanisms of composite wind turbine blades

AU - Ye, Junjie

AU - Chu, C.

AU - Cai, H.

AU - Hou, X.

AU - Shi, B.

AU - Tian, S.

AU - Chen, X.

AU - Ye, J.

N1 - This is the author’s version of a work that was accepted for publication in Composite Structures. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work 3since it was submitted for publication. A definitive version was subsequently published in Composite Structures, 212, 2019 DOI: 10.1016/j.compstruct.2019.01.031

PY - 2019/3/15

Y1 - 2019/3/15

N2 - Composite structures have been widely used in wind turbine equipment for their high stiffness to mass ratio and high strength. A major concern in the use of composite materials is their susceptibility to various micro damage, such as fiber breakage and matrix crack, which will lead to macroscopic structural fracture. In this paper, a multi-scale modeling strategy is proposed to investigate failure mechanisms and damage evolution of composite blades with initial defects from microscopic damage (including fiber fractures and matrix cracks) to macroscopic fracture. At the microscopic scale, an isoparametric micromechanical model is developed to calculate microscopic stresses and simulate microscopic damage. At the laminar scale, the classic laminate theory is employed to evaluate the laminate stiffness. At the structural scale, a reverse modeling technology is proposed to accurately acquire structural dimensions of a wind turbine blade, and a macroscopic 3D model is implemented into ANSYS/LS-DYNA software. By comparing with the experimental data, it is demonstrated that the proposed multi-scale method is suitable to predict mechanical properties of complex composite structures effectively.

AB - Composite structures have been widely used in wind turbine equipment for their high stiffness to mass ratio and high strength. A major concern in the use of composite materials is their susceptibility to various micro damage, such as fiber breakage and matrix crack, which will lead to macroscopic structural fracture. In this paper, a multi-scale modeling strategy is proposed to investigate failure mechanisms and damage evolution of composite blades with initial defects from microscopic damage (including fiber fractures and matrix cracks) to macroscopic fracture. At the microscopic scale, an isoparametric micromechanical model is developed to calculate microscopic stresses and simulate microscopic damage. At the laminar scale, the classic laminate theory is employed to evaluate the laminate stiffness. At the structural scale, a reverse modeling technology is proposed to accurately acquire structural dimensions of a wind turbine blade, and a macroscopic 3D model is implemented into ANSYS/LS-DYNA software. By comparing with the experimental data, it is demonstrated that the proposed multi-scale method is suitable to predict mechanical properties of complex composite structures effectively.

KW - Composites

KW - Damage evolution

KW - FBG sensors

KW - Multiscale model

KW - Wind turbine blade

KW - Composite materials

KW - Cracks

KW - Fracture

KW - Mechanical properties

KW - Stiffness

KW - Structure (composition)

KW - Turbomachine blades

KW - Wind turbines

KW - Complex composite structures

KW - Composite wind turbine blade

KW - FBG sensor

KW - Macroscopic fractures

KW - Micro-mechanical modeling

KW - Multi-scale Modeling

KW - Wind turbine blades

KW - Turbine components

U2 - 10.1016/j.compstruct.2019.01.031

DO - 10.1016/j.compstruct.2019.01.031

M3 - Journal article

VL - 212

SP - 220

EP - 229

JO - Composite Structures

JF - Composite Structures

SN - 0263-8223

ER -