LAUSR

Design of variable stiffness composite structures using lamination parameters with fiber steering constraint

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0 Published in 2019 at "Composites Part B: Engineering"

DOI: 10.1016/j.compositesb.2019.02.004

Abstract: Abstract In this study, a lamination parameter based optimization algorithm is developed in a finite element framework using classical plate deformation theory. The optimization reveals lamination parameter distribution over the plate which are then converted… read more here.

Keywords: design variable; stiffness composite; lamination; constraint ... See more keywords

Modeling crack propagation in variable stiffness composite laminates using the phase field method

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0 Published in 2019 at "Composite Structures"

DOI: 10.1016/j.compstruct.2018.10.083

Abstract: Abstract The fracture processes of the constant/variable stiffness composite laminate (CSCL/VSCL) subjected to uni-axial tension is investigated using the phase-field method. The main objectives of this work are: (a) to study the crack propagation path… read more here.

Keywords: stiffness composite; field method; phase field; variable stiffness ... See more keywords

Curvature-controlled trajectory planning for variable stiffness composite laminates

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0 Published in 2020 at "Composite Structures"

DOI: 10.1016/j.compstruct.2020.111986

Abstract: Abstract Variable-stiffness laminates can redistribute the applied load and increase critical buckling loads compared to traditional straight fiber laminates. To take full advantage of fiber reinforced composite materials, a practical trajectory planning method is generated… read more here.

Keywords: composite laminates; trajectory planning; variable stiffness; stiffness composite ... See more keywords

Geometrically nonlinear bending analysis of variable stiffness composite laminated shell panels with a higher-order theory

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0 Published in 2021 at "Composite Structures"

DOI: 10.1016/j.compstruct.2021.114527

Abstract: Abstract A finite element (FE) formulation is developed by extending the third-order shear deformation theory, including the zig-zag effects using the Murakami zig-zag function, for the linear and nonlinear static analyses of variable stiffness composite… read more here.

Keywords: composite laminated; stiffness composite; order; shell panels ... See more keywords

Effects of embedded perforation geometry on the free vibration of tow-steered variable stiffness composite laminated panels

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0 Published in 2019 at "Thin-Walled Structures"

DOI: 10.1016/j.tws.2019.106287

Abstract: Abstract The free vibration characteristics of the variable stiffness composite laminated plates containing embedded cutout of desired shapes is investigated. The circular, elliptical and quadrilateral perforation geometries are taken into account. In order to provide… read more here.

Keywords: composite laminated; stiffness composite; tow steered; geometry ... See more keywords