Bird-striking damage of rotating laminates using SPH-CDM method

Zhou, Yadong; Sun, Youchao; Cai, Wenchao

doi:10.1016/j.ast.2018.10.009

Cited by 31 publications

(17 citation statements)

References 27 publications

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“…At high velocities, the bird projectile behaves like fluidic materials, and its inhomogeneity becomes negligible and hence can be treated as "soft body" [29,30]. The hydrodynamic responses of fluidic materials can be accurately modelled by the smoothed particle hydrodynamics (SPH) method, which has experienced wide use in bird-strike simulations [2,25,29,[31][32][33][34]. In the present simulation study with ABAQUS software, the bird projectile was firstly meshed by finite elements (C3D8R), and then they were converted to SPH particles (PC3D) at the beginning of the bird-impact analysis (time threshold = 0).…”

Section: Numerical Modelmentioning

confidence: 99%

“…These abovementioned works have indicated that the selection of lamina materials is a key issue and have shown promising results in material modification of composite laminates for bird-strike resistance. Authors have recently investigated some critical influencing factors for bird-strike damage of laminated composite materials, such as the total laminate thickness [23], ply angles [24], rotational speeds [25], and impact locations/configurations [26,27]. However, the influence of different composite materials has not been considered very well.…”

Section: Introductionmentioning

confidence: 99%

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Bird-Strike Resistance of Composite Laminates with Different Materials

2019

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To obtain some basic laws for bird-strike resistance of composite materials in aeronautical application, the high-velocity impact behaviors of composite laminates with different materials were studied by numerical methods. The smoothed particle hydrodynamics (SPH) and finite element method (FEM) coupling models were validated from various perspectives, and the numerical results were comparatively investigated. Results show that the different composite materials have relatively little effect on projectile deformations during the bird impact. However, the impact-damage distributions can be significantly different for different composite materials. The strength parameters and fracture energy parameters play different roles in different damage modes. Lastly, modal frequency was tentatively used to explain the damage behavior of the composite laminates, for it can manifest the mass and stiffness characteristics of a dynamic structure. The dynamic properties and strength properties jointly determine the impact-damage resistance of composite laminates under bird strike. Future optimization study can be considered from these two aspects.

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Section: Numerical Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Bird-Strike Resistance of Composite Laminates with Different Materials

2019

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“…Zhang et al (Z. Zhang, Li, & Zhang, 2018) investigated the impact behaviours of real bird models striking on rotating engine blades from arbitrary attitude angles. Authors (Zhou, Sun, & Cai, 2019) recently considered the bird-strike failure analysis of rotating laminated disks for future key applications of aeroengine blades.…”

Section: Introductionmentioning

confidence: 99%

Impact responses of slender composite plates for bird-strike testing of fan blades

Zhou

Sun

Huang

2019

Lat. Am. j. solids struct.

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Bird-strike failure of fan blades is one of the basic challenges for the safety of aircraft engines. Simplified slender blade-like plates are always used to evaluate the impact-induced damage mechanism at design stage. One undesirable issue is the failure at the root of clamped slender plates, which cannot recover the real case of twisted blades. For this purpose, three different strategies were exploited to obtain desirable deformation and stress responses, namely the impact location, additional weight, and the boundary condition. Numerical models of the simplified slender blade and the bird projectile were constructed by using finite element method (FEM) and smoothed particle hydrodynamics (SPH) approaches. The impact deformations and stress distributions were comparatively investigated in detail. The numerical results show that changing the boundary condition is the most effective way to obtain preferable impact responses for further failure analysis of real fan blades. Present results will be useful to future experimental design of simplified bird-strike testing.

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“…According to the airworthiness requirements, Guida et al [35] adapted an innovative layup on an aeronautical structure, which was subjected to the bird strike phenomenon at 180 m/s and with an impacting mass of 1.8 kg. The authors [36] have recently studied the bird strike damage modes in rotational composite laminates, with the ply angles fixed. Dealing with extreme loadings, analysis and design of sandwich panels under both air-blast loading [37] and low-velocity impact [38] have been recently considered.…”

Section: Introductionmentioning

confidence: 99%

SPH-FEM Design of Laminated Plies under Bird-Strike Impact

2019

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Composite laminates can potentially reduce the weight of aircrafts; however, they are subjected to bird strike hazards in civil aviation. To handle their nonlinear dynamic behaviour, in this study, the impact damage of composite laminates were numerically evaluated and designed by means of smoothed particle hydrodynamics (SPH) and the finite element method (FEM) to simulate the interaction between bird projectiles and the laminates. Attention was mainly focused on the different damage modes in various laminates’ plies induced by bird impact on a square laminated plate. A continuum damage mechanics approach was exploited to simulate damage initiation and evolution in composite laminates. Damage maps were computed with respect to different ply angles, i.e., 0°, 45° and −45°. The damage distributions were comparatively investigated, and then the ply design was considered for crashworthiness improvement. The results aim to serve as a design guideline for future prototype-scale bird strike studies of complex laminated structures.

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Bird-striking damage of rotating laminates using SPH-CDM method

Cited by 31 publications

References 27 publications

Bird-Strike Resistance of Composite Laminates with Different Materials

Bird-Strike Resistance of Composite Laminates with Different Materials

Impact responses of slender composite plates for bird-strike testing of fan blades

SPH-FEM Design of Laminated Plies under Bird-Strike Impact

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