Optimal curved fibre orientations of a composite panel with cutout for improved buckling load using the Efficient Global Optimization algorithm

Passos, Adriano Gonçalves dos; Luersen, Marco Antônio; Steeves, Craig A.

doi:10.1080/0305215x.2016.1256052

Cited by 29 publications

(12 citation statements)

References 35 publications

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“…The new additive manufacturing technology offers the opportunity to change the orientation of fibres during the manufacturing process, therefore, an optimization method of continuous fibre placement is required for the 3D printed CFRP composites. To fully utilize the properties of fibre, a few algorithms have been developed to adjust the placement of fibres [27,28]. These methods usually require lots of variables and some assumptions, which complicates the process of optimization.…”

Section: Introductionmentioning

confidence: 99%

“…These methods usually require lots of variables and some assumptions, which complicates the process of optimization. In addition, the orientation of CFRP material has to be optimised in each element when carrying out finite element analysis, without considering whether the real manufacturing process is possible to achieve it or not [28][29][30]. It also brings discrete fibre angles in the mesh and large discrepancy of fibre angles between the adjacent elements.…”

Section: Introductionmentioning

confidence: 99%

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Performance-driven 3D printing of continuous curved carbon fibre reinforced polymer composites: A preliminary numerical study

Zhang

Yang

Sheng

2018

Composites Part B: Engineering

107

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This paper presents a new concept to place continuous curved fibres for carbon fibre reinforced polymer (CFRP) composites, which can be fulfilled by potential additive or hybrid manufacturing technology. Based on the loading condition, principal stress trajectories are generated through finite element analysis (FEA) and used as the guidance for the placement paths of carbon fibres. Three numerical cases including an open-hole single ply lamina under uniaxial tension and open-hole cross-ply laminate under biaxial tension and normal pressure are studied and compared with traditional reinforced composites with unidirectional fibres. The modelling results show that the stress concentration in both fibre and matrix are reduced significantly by the curved fibre placement and the stiffness of CFRP composites have been improved. This concept of performance-driven optimization method could lead to a useful tool for the design of future 3D printing process for fibre reinforced composites.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Performance-driven 3D printing of continuous curved carbon fibre reinforced polymer composites: A preliminary numerical study

Zhang

Yang

Sheng

2018

Composites Part B: Engineering

107

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“…The motion of the plate during the first phase (0 ł t ł t 1 ) is described by equations (23)- (26) with the initial conditions (14) and (27). The motion of the hinge l is described by equation (29).…”

Section: The Equations Of Motion and Analysis Of Behavior Of Plate Inmentioning

confidence: 99%

Modeling the dynamic bending of rigid-plastic fiber-reinforced laminated curvilinear doubly connected thin plates with free outer contour

Romanova

2020

Mathematics and Mechanics of Solids

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A theoretical model of the dynamic bending of rigid-plastic hybrid composite, arbitrary curvilinear doubly connected thin plates is developed. Inner contour of the plate is simply supported or clamped and outer one is free. The plates are on a viscous basis and under the action of uniformly distributed loads of explosive type. The plates are laminated and fibrous, with layers arranged symmetrically with respect to the middle surface. In each layer the reinforcing fibers, made of different materials, are located in directions parallel or normal to inner contour of plate. The structural model of the reinforced layer considering the plane stress state in fibers is used. The equations of the dynamic deformation of plate and simple analytical formula for the limit load are obtained. Numerical examples are given for a fiber-reinforced four-layered curvilinear plate with a supported hole in the form of ellipse and super-ellipse at the same total amount of reinforcement.

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“…Further progress within the material tailoring technology is the tow-steering technique, where the fibres orientations within a ply follow a predefined curvilinear path; thus the ply stiff-ness vary continuously through the plane of each ply. It has been demonstrated that these fibre paths can be optimized to increase the structural performance of a laminate beyond that of an equivalent regular UD laminate [26,32,38]. Further improvement in system performance and enhancement in its capabilities can be achieved by incorporating multifunctional materials into structural design.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear vibrations of a rotating thin-walled composite piezo-beam with circumferentially uniform stiffness (CUS)

Latalski

Warmiński

2019

Nonlinear Dyn

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A rotating system comprising a hub and a thin-walled laminate cantilever beam with embedded nonlinear piezoelectric layers is analysed in the paper. The reinforcing fibres setup in composite material conforms to circumferentially uniform stiffness lamination scheme. This configuration exhibits the mutual bending couplings in two orthogonal planes. Nonlinear analytical model of a piezoelectric material embedded onto the beam walls is postulated by considering the higher-order constitutive relations with respect to electric field variable. Moreover, to properly model electromechanical structural behaviour, the full two-way coupling piezoelectric effect is considered. To this aim, the assumption of a spanwise electric field variation is postulated in the mathematical model of the structure. Based on previous authors' research, the system of mutually coupled nonlinear equations of motion is formulated. In the numerical analysis the forced response of the system under zero and nonzero mean value harmonic torque excitation is considered. In particular, the influence of hub inertia, excitation amplitude and mean

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Optimal curved fibre orientations of a composite panel with cutout for improved buckling load using the Efficient Global Optimization algorithm

Cited by 29 publications

References 35 publications

Performance-driven 3D printing of continuous curved carbon fibre reinforced polymer composites: A preliminary numerical study

Performance-driven 3D printing of continuous curved carbon fibre reinforced polymer composites: A preliminary numerical study

Modeling the dynamic bending of rigid-plastic fiber-reinforced laminated curvilinear doubly connected thin plates with free outer contour

Nonlinear vibrations of a rotating thin-walled composite piezo-beam with circumferentially uniform stiffness (CUS)

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