Nonlinear dynamic pulse buckling of imperfect laminated composite plate with delamination

Mondal, Susmita; Ramachandra, L. S.

doi:10.1016/j.ijsolstr.2020.04.010

Cited by 16 publications

(4 citation statements)

References 17 publications

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“…In the book [chapter 2] of Susmita Mondal and L.S. Ramachandr [12], imperfections in laminated composite plates in the form of openings were considered. Based on this new concept, the nonlinear dynamic pulse buckling of imperfect composite plate with embedded delamination was numerically analyzed and showed the influence of type of pulse loading (sinusoidal, exponential and rectangular) and plate boundary condition on the shock spectrum.…”

Section: Introductionmentioning

confidence: 99%

Effect of Sinusoidal Fiber Waviness on Non-Linear Dynamic Performance of Laminated Composite Plates with Variable Fiber Spacing

Mohammed,

Shambina,

Ammash

2024

Struct. Mech. of Eng. Const. and Build

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This study investigated influence of varying waviness characteristics of fiber, represented by path amplitude Δ and different numbers of half sine waves k , on the elastic-plastic dynamic behaviour of laminated composite plates with variable fiber spacing. The analysis was based on the equations for action of constant axial dynamic loading and two-dimensional layered approach with classical first order shear deformation theory with five degrees of freedom per node, and it was performed with FORTRAN 94 programming language. Von-Karman’s assumptions were used for the discretization of the laminated plates to include geometric nonlinearity for nine-node Lagrangian isoperimetric quadrilateral elements. Complete bond between the layers was assumed with no delamination, which was based on first-order shear deformation theory. The Newmark implicit time integration method and Newton-Raphson iteration were simultaneously used to solve the nonlinear governing equation in conjunction. It was proven in the research that the nonlinear performance of the laminated composite plate was affected by the studied waviness parameters Δ and k , and also by the variable distribution pattern selected for this study.

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Section: Introductionmentioning

confidence: 99%

Effect of Sinusoidal Fiber Waviness on Non-Linear Dynamic Performance of Laminated Composite Plates with Variable Fiber Spacing

Mohammed,

Shambina,

Ammash

2024

Struct. Mech. of Eng. Const. and Build

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“…Mondal and Ramachandra computed the dynamic buckling load using Tsai-Wu quadratic criterion, in which the nonlinear dynamics phenomena is investigated at different pulse type of buckling. The response of the delaminated composite plate is calculated at different types of pulse loading such as sinusoidal, exponential and rectangular [3]. Keshav and Patel studied the nonlinear dynamic buckling of a laminated composite curved panel under dynamic in-plane axial compressive load using the finite element method.…”

Section: Introductionmentioning

confidence: 99%

Largest Lyapunov Exponent Parameter of Stiffened Carbon Fiber Reinforced Epoxy Composite Laminated Plate Due to Critical Buckling Load Using Average Logarithmic Divergence Approach

Yousuf

2022

Mathematics

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The purpose of this study is to calculate the bending deflection which is used to investigate the largest Lyapunov exponent due to buckling load. The design methodology is to calculate the largest Lyapunov exponent parameter at different thickness ratios and different fiber volume fractions using one and two stiffeners in order to reduce the chaotic phenomenon. The practical implication is to find the bending deflection using a strain gauge through a strain meter, in which this bending deflection is used in the algorithm of average logarithmic divergence to calculate the largest Lyapunov exponent experimentally. The experiment set up is carried out using Southwell plot when the upper head of the servo hydraulic cylinder moves downward. There are no limitations to this research, since it works on all kinds of composite materials, different thickness ratios, and different number of layers, different fiber volume fractions, and different boundary conditions. The findings of this work will allow us to detect the chaotic phenomenon in a stiffened carbon fiber reinforced epoxy composite laminated plate using the conception of the largest Lyapunov exponent parameter. The higher order shear deformation theory (HOSDT) of plates is used to analytically calculate the set of data of the bending deflection against time. All the systems used in this paper have non-periodic motion and chaos because the value of the Lyapunov parameter is above zero. The originality of this paper is the use of the algorithm code of average logarithmic divergence to investigate the value of the largest Lyapunov exponent parameter in the presence of stiffeners based on the bending deflection of a carbon epoxy composite laminated plate.

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“…Monda and Ramachandra [11] have investigated numerically the nonlinear dynamic pulse buckling of imperfect composite plate with embedded delamination, the dynamic buckling load is calculated using Tsai-Wu quadratic interaction criterion. The results have showed that the varied sort of impulsive loading, plate condition affects the pulse global buckling load of the structure.…”

Section: Introductionmentioning

confidence: 99%

Delamination buckling of a laminated composite shell panel using cohesive zone modelling

Feddal,

Khamlichi

2022

IRASE

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Laminated composite shell panels take part in several engineering structures. Due to their complex nature, failure modes in composites are highly dependent on the geometry, direction of loading and orientation of the fibers. However, the design of composite parts is still a delicate task because of these fiber failure modes, which includes matrix failure modes or other so-called interlaminar interface failure such as delamination, that corresponds to the separation of adjacent layers of the laminate as a consequence of the weakening of interface layer between them. In this work, impact-induced delamination represented as a circular single delamination is investigated, as it can reduce greatly the structural integrity without getting detected. Furthermore, attention is focused on its effect upon the post-buckling response and the compressive strength of a composite panel. The delamination buckling was modelled using the cohesive element technique under Abaqus software, in order to predict delamination growth and damage propagation while observing their effects on the critical buckling load.

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Nonlinear dynamic pulse buckling of imperfect laminated composite plate with delamination

Cited by 16 publications

References 17 publications

Effect of Sinusoidal Fiber Waviness on Non-Linear Dynamic Performance of Laminated Composite Plates with Variable Fiber Spacing

Effect of Sinusoidal Fiber Waviness on Non-Linear Dynamic Performance of Laminated Composite Plates with Variable Fiber Spacing

Largest Lyapunov Exponent Parameter of Stiffened Carbon Fiber Reinforced Epoxy Composite Laminated Plate Due to Critical Buckling Load Using Average Logarithmic Divergence Approach

Delamination buckling of a laminated composite shell panel using cohesive zone modelling

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