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 since it was submitted for publication. A definitive version was subsequently published in Composite Structures, 269, 2021 DOI: 10.1016/j.compstruct.2021.114024
Accepted author manuscript, 2.58 MB, PDF document
Available under license: CC BY-NC-ND
Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Micromechanical analysis of UD CFRP composite lamina under multiaxial loading with different loading paths
AU - Chen, J.
AU - Wan, L.
AU - Ismail, Y.
AU - Hou, P.
AU - Ye, J.
AU - Yang, D.
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 since it was submitted for publication. A definitive version was subsequently published in Composite Structures, 269, 2021 DOI: 10.1016/j.compstruct.2021.114024
PY - 2021/8/1
Y1 - 2021/8/1
N2 - The influences of loading path on the failure of unidirectional (UD) carbon fibre reinforced polymer (CFRP) composite laminae IM7/8552 are studied. A 3D representative volume element (RVE) based micromechanical model is established using finite element method (FEM) to capture the coupled effects of fibres, matrix and fibre/matrix interface on the failure under different multiaxial loading conditions. An artificial neural network (ANN) is adopted to identify experimentally difficult-to-measure micro-parameters of interface, such as interface thickness and stiffnesses, for the construction of the high-fidelity RVE. In order to precisely control the loading path with the consideration of Poisson's effects, the RVE is loaded by force at the dummy points instead of using the commonly used displacement loading approach. Three different loading paths are compared in each case, and the results show that the failure strength and patterns of the RVE under combined transverse and out-of-plane compressions as well as in-plane shear are independent of loading paths.
AB - The influences of loading path on the failure of unidirectional (UD) carbon fibre reinforced polymer (CFRP) composite laminae IM7/8552 are studied. A 3D representative volume element (RVE) based micromechanical model is established using finite element method (FEM) to capture the coupled effects of fibres, matrix and fibre/matrix interface on the failure under different multiaxial loading conditions. An artificial neural network (ANN) is adopted to identify experimentally difficult-to-measure micro-parameters of interface, such as interface thickness and stiffnesses, for the construction of the high-fidelity RVE. In order to precisely control the loading path with the consideration of Poisson's effects, the RVE is loaded by force at the dummy points instead of using the commonly used displacement loading approach. Three different loading paths are compared in each case, and the results show that the failure strength and patterns of the RVE under combined transverse and out-of-plane compressions as well as in-plane shear are independent of loading paths.
KW - CFRP
KW - Failure prediction
KW - FEM
KW - Loading path
KW - RVE
KW - Carbon fibers
KW - Failure (mechanical)
KW - Finite element method
KW - Laminated composites
KW - Loading
KW - Loads (forces)
KW - Neural networks
KW - Carbon fiber reinforced polymer composite
KW - Carbon fibre reinforced polymer
KW - Composite lamina
KW - Element method
KW - Element-based
KW - Failures prediction
KW - Micro-mechanical analysis
KW - Multi-axial loadings
KW - Representative volume elements
KW - Carbon fiber reinforced plastics
U2 - 10.1016/j.compstruct.2021.114024
DO - 10.1016/j.compstruct.2021.114024
M3 - Journal article
VL - 269
JO - Composite Structures
JF - Composite Structures
SN - 0263-8223
M1 - 114024
ER -