Numerical transient responses of cut-out borne composite panel and experimental validity

Dewangan, Hukum Chand; Panda, Sidhartha

doi:10.1177/0954410020977344

Cited by 11 publications

(2 citation statements)

References 47 publications

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“…The discretization of cut-out abided multilayered panels in the current FE approach has been carried out using the quarter-panel model. 42 Initially, the element distribution along x and y -axes has been provided for half of the quarter panel model (Figure 2). Then, using mirror imaging about the diagonal of the quarter panel, the meshing has been achieved for the quarter panel.…”

Section: Cut-out Modelingmentioning

confidence: 99%

Thermomechanical loading and cut-out effect on static and dynamic responses of multilayered structure with TD properties

Dewangan

Sharma

Panda

2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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The influences of cut-out on the static and dynamic deflection of the multilayered composites under thermomechanical are predicted numerically. In this regard, a mathematical model is prepared using the third-order kinematics associated with the isoparametric finite element steps. Moreover, the solution accuracy of the derived model has been tested frequently by solving a series of examples (obtained from MATLAB code) similar to the published one. In addition, the model verification is extended further by comparing the numerical results with the in-house experimental data recorded under the static and dynamic loading conditions. The equivalent single-layer theoretical model (prepared for the cut-out abided laminated structure) exactness is maintained by considering the variation of in-plane displacement as cubic. In contrast, the state space variable along with the thickness is constant. Additionally, the experimental comparisons are made considering the influences of different cut-out geometry, temperature increment, and loading intensities. The effects of cut-out and the laminated structural geometrical parameters that affect the final design consideration due to the thermomechanical loading as well as the temperature-dependent properties are computed using the derived model, and the outcomes are discussed in detail.

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Section: Cut-out Modelingmentioning

confidence: 99%

Thermomechanical loading and cut-out effect on static and dynamic responses of multilayered structure with TD properties

Dewangan

Sharma

Panda

2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…Subsequently, the dynamic deflection responses of the hybrid composite structure and cut-out borne composite panel were computed by Dewangan et al 28 This model was derived under the higher-order single-layer kinematic theory including the continuity of interlaminar shear stress. Moreover, Dewangan et al 29,30 predicted the changes in the modal response of the cutout impregnated composite plates due to changes in shapes and sizes using higher-order FEM. It is verified by experiments for the first time that the high-order numerical model is correct to calculate the eigenvalues of composite laminated members with notch.…”

Section: Introductionmentioning

confidence: 99%

An efficient semi-analytical static and free vibration analysis of laminated and sandwich beams based on linear elasticity theory

Yin

Gao

Lin

2021

The Journal of Strain Analysis for Engineering Design

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Based on the two-dimensional (2D) elastic theory without enforcing any beam assumption, an efficient semi-analytical scaled boundary finite element method (SBFEM) is proposed to solve the bending and free vibration responses of composite laminated and sandwich beams under the mechanical load. The scaled center is placed at infinity, which produces the accurate result by discretizing only the longitudinal direction of the beam structure treated as a one-dimensional (1D) discretization problem. A new kind of 1D high-order spectral element shape functions with the advantages of high accuracy and superior convergence is introduced in SBFEM coordinate system to approximate the geometric model and corresponding variables. The principle of weighted residual in conjunction with the Green’s theorem are applied to obtain the SBFEM governing equation of each layer with respect to radial displacement fields. The solution of equation is indicated analytically by a matrix exponential function, which can be accurately solved by using the precise integration technique (PIT). Finally, an effective and simple stiffness matrix is obtained. By comparing two examples with the solutions based on the finite element method (FEM), the results show that the proposed method has good accuracy and rapid convergence with only a few meshes. The numerical examples are given to investigate the parametric effects of the stacking sequence, thickness ratio, boundary condition, and load form on the variation of the displacement, stress and natural frequency. The results validate that the present technique is also applicable to the complex beam structure with softcore layer inside.

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Numerical and experimental deflection behavior of damaged doubly curved composite laminated shell structure

et al. 2022

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Numerical transient responses of cut-out borne composite panel and experimental validity

Cited by 11 publications

References 47 publications

Thermomechanical loading and cut-out effect on static and dynamic responses of multilayered structure with TD properties

Thermomechanical loading and cut-out effect on static and dynamic responses of multilayered structure with TD properties

An efficient semi-analytical static and free vibration analysis of laminated and sandwich beams based on linear elasticity theory

Numerical and experimental deflection behavior of damaged doubly curved composite laminated shell structure

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