Simulation of a birdstrike impact on aircraft canopy material

Baughn, T.; Graham, L.W.

doi:10.2514/3.45638

Cited by 16 publications

(3 citation statements)

References 1 publication

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“…It is stated that this method is employed to sustain the symmetry and orientation for the impact test. Moreover, in some research, the real bird has been substituted by other material, such as gelatin with 15v% microballoons [2] and rubber in the shape of a ball [4].…”

Section: Introductionmentioning

confidence: 99%

Numerical Modelling of Bird Strike on Aerospace Structures by means of Coupling FE-SPH

Abdullah,

Yusoff,

Shahimi

et al. 2021

IJIE

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This article offers a parametric mechanics investigation in defining the correlation between the parameters of a wing-body during a bird strike collision. A commercial software of LS-Dyna is used to compute the numerical modelling manifested in this research. In this study, it is an attempt to form a definitive work based on the Smoothed Particle Hydrodynamics (SPH)formulation by recognising the most critical influencing parameters in the bird-strike computation and verify the simulation with the experiment data. For instance, an idealised bird is modelled as a cylindrical shape with hemispherical ends to maintain the homogeneity and symmetryusing SPH approach. Moreover, an aluminium alloyrigid flatplate is modelled as a shell element plate in the finite element model (FEM). Here, internal energy vs time for different plate thickness graph are plotted to observe the difference of absorbed energy during the impact. Such conditions are considered in this research from the sight of bird strike impact under multiple states (structural thickness) and constraints (bird size). The obtained computational results are in adjacent agreement with the experimental results published in another literature.

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Section: Introductionmentioning

confidence: 99%

Numerical Modelling of Bird Strike on Aerospace Structures by means of Coupling FE-SPH

Abdullah,

Yusoff,

Shahimi

et al. 2021

IJIE

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“…The literature about impact events using hard impactors are extensive due to the simplicity of testing and modeling a nondeformable projectile. The study and testing of deformable impactors is inherently more difficult, nevertheless it is possible to find studies regarding bird impacts [13,14,15], rubber impacts [16,17,18] or ice impacts [19,20,21], mainly from an experimental point of view.…”

Section: Introductionmentioning

confidence: 99%

Numerical methodology to analyze the ice impact threat: Application to composite structures

et al. 2018

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Impacts on composites produce interlaminar failure (delamination) which is difficult to detect in common maintenance tasks, and affects the structural integrity. Therefore it is critical, for safety, to improve prediction tools in order to perform tolerant damage designs. The numerical modelling of impacts of deformable objects (such as ice) on composite panels is still a challenge. Not only the modelling of the laminate should be appropriate to reproduce its behaviour and failures, but the modelling of the deformable projectile should be capable to induce the corresponding response and damages. In this work a two-step numerical methodology is proposed for the study of ice impact. First, the deformable impactor is analysed, studying the impact process on a rigid target (a steel plate attached to a load cell). Once the deformable projectile behaviour is fully captured, the ice impact on a deformable target (a carbon/epoxy laminate) is studied. The composite material model takes into account intralaminar and interlaminar failure in order to reproduce the laminate behaviour. Different ice sphere diameters (30, 40 and 50mm) and impact velocities (50 − 250 m/s) are considered in this study. All the results from the numerical simulations have been compared with the experimental results.

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“…The analyses of bird-strike resistance of aircraft component have required the development of special methods of calculating their strength under impact loading [17][18][19][20][21][22]. However, the complexity of theoretical-strength analysis of aircraft components in the event of collision with a bird and, consequently, the introduction of different kinds of simplifications and empirical assumptions in available models have called for wide application of full-scale experiments [23][24][25] when assessing the bird-strike resistance of aircraft components.…”

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confidence: 99%

Bird Dummy for Investigating the Bird-Strike Resistance of Aircraft Components

Шупиков¹,

Ugrimov²,

Smetankina³

et al. 2013

Journal of Aircraft

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This paper deals with making a bird dummy for testing the bird-strike resistance of aircraft components. A new bird dummy has been offered. It differs from existing analogs by reproducing the impact impulse with high accuracy. Besides, it is easy to make, store, and clean up its fragments after tests. The bird dummy is made of silicon that models the bird's muscular tissue. It also has plastic ball fillers for modeling the skeleton and the cavities inside the bird. The results of comparative experimental research in strain occurring in a steel target plate and the elements of aircraft transparencies, as well as the damages of an aircraft vertical stabilizer during impact with the dummy and a real bird, are given. Data are presented for different impact angles and velocities. Comparative experiments have shown that using the dummy offered for testing the bird-strike resistance of aircraft components is a viable option. Nomenclature= bird mass M ball = ball mass M d = dummy mass P 0 = pressure of compressed air r = dummy radius r ball = ball radius S b = area of the bird's midlength section S d = cross-sectional area of the cylindrical part of the dummy= strain of steel plate along the x axis ε y = strain of steel plate along the y axis ε 1 , ε 2 , ε 3 = strains for the left-side window of cockpit transparencies ρ = density ρ av = average bird density ρ ball = ball density ρ m = density of a bird's muscular tissue

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Simulation of a birdstrike impact on aircraft canopy material

Cited by 16 publications

References 1 publication

Numerical Modelling of Bird Strike on Aerospace Structures by means of Coupling FE-SPH

Numerical Modelling of Bird Strike on Aerospace Structures by means of Coupling FE-SPH

Numerical methodology to analyze the ice impact threat: Application to composite structures

Bird Dummy for Investigating the Bird-Strike Resistance of Aircraft Components

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