Optimal weaving for 2.5D interlocks

Rafic Younes; Wael Zaki

doi:10.1016/j.compstruct.2010.10.013

Optimal weaving for 2.5D interlocks

Rafic Younes, Wael Zaki

Mechanical & Nuclear Engineering

Lebanese University

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

Abstract

This paper deals with optimizing the representative volume element (RVE) of 2.5D interlock composites for enhanced damage resistance and elastic stiffness. The elastic moduli of the composite are determined as a volume average of the moduli of the matrix and fiber, while the overall resistance to failure is obtained through incremental use of the 3D Tsai-Wu failure criterion. The variables considered for the optimization problem are the volume fractions of the fibers, their proportions in each direction and the weaving step of the vertical reinforcement. The optimization is carried out using a sequential quadratic programming approach (SQP) and the results are validated against experimental data obtained for 2.5D interlocks with carbon reinforcements.

Original language	British English
Pages (from-to)	1255-1264
Number of pages	10
Journal	Composite Structures
Volume	93
Issue number	4
DOIs	https://doi.org/10.1016/j.compstruct.2010.10.013
State	Published - Mar 2011

Keywords

Composite materials
Homogenization
Modeling
Optimization

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10.1016/j.compstruct.2010.10.013

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title = "Optimal weaving for 2.5D interlocks",

abstract = "This paper deals with optimizing the representative volume element (RVE) of 2.5D interlock composites for enhanced damage resistance and elastic stiffness. The elastic moduli of the composite are determined as a volume average of the moduli of the matrix and fiber, while the overall resistance to failure is obtained through incremental use of the 3D Tsai-Wu failure criterion. The variables considered for the optimization problem are the volume fractions of the fibers, their proportions in each direction and the weaving step of the vertical reinforcement. The optimization is carried out using a sequential quadratic programming approach (SQP) and the results are validated against experimental data obtained for 2.5D interlocks with carbon reinforcements.",

keywords = "Composite materials, Homogenization, Modeling, Optimization",

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AU - Younes, Rafic

AU - Zaki, Wael

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N2 - This paper deals with optimizing the representative volume element (RVE) of 2.5D interlock composites for enhanced damage resistance and elastic stiffness. The elastic moduli of the composite are determined as a volume average of the moduli of the matrix and fiber, while the overall resistance to failure is obtained through incremental use of the 3D Tsai-Wu failure criterion. The variables considered for the optimization problem are the volume fractions of the fibers, their proportions in each direction and the weaving step of the vertical reinforcement. The optimization is carried out using a sequential quadratic programming approach (SQP) and the results are validated against experimental data obtained for 2.5D interlocks with carbon reinforcements.

AB - This paper deals with optimizing the representative volume element (RVE) of 2.5D interlock composites for enhanced damage resistance and elastic stiffness. The elastic moduli of the composite are determined as a volume average of the moduli of the matrix and fiber, while the overall resistance to failure is obtained through incremental use of the 3D Tsai-Wu failure criterion. The variables considered for the optimization problem are the volume fractions of the fibers, their proportions in each direction and the weaving step of the vertical reinforcement. The optimization is carried out using a sequential quadratic programming approach (SQP) and the results are validated against experimental data obtained for 2.5D interlocks with carbon reinforcements.

KW - Composite materials

KW - Homogenization

KW - Modeling

KW - Optimization

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SP - 1255

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JO - Composite Structures

JF - Composite Structures

IS - 4

ER -

Optimal weaving for 2.5D interlocks

Abstract

Keywords

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