Effect of elliptical notches on mechanical response and progressive damage of FMLs under tensile loading

Wang, Changzi; Lu, Yao; He, Wentao; Cui, Xiaofei; Wu, Jun; Xie, De

doi:10.1016/j.tws.2020.106866

Cited by 18 publications

(11 citation statements)

References 63 publications

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“…Once damage initiates, the material point begins to enter the damage evolution process according to the exponential form energy dissipated damage evolution model [41], which can be expressed as: where d is the damage variable representing the degradation degree from 0 to 1, and the corresponding elements will be deleted when d reach 1, In addition, G f is the fracture energy dissipation, u pl represents the relative plastic displacement, whose value is set to 0 before damage initiation.…”

Section: Damage Model For the Aluminum Corementioning

confidence: 99%

“…CEL method is typically used to model the interactions between a solid body and fluid material, due to the fact that it not only allows Eulerian and Lagrangian bodies within the same model to interact and deal with the large deformation problem but also can adequately absorb the respective advantages of Lagrangian mesh and Eulerian mesh. In Lagrangian analysis nodes are fixed within the material, and elements deform as the material deforms, and elements are always 100% full of a single material, so the material boundary coincides with an element boundary [41]. The Eulerian implementation in Abaqus/Explicit is based on the Volume-of-Fluid (VOF) method, which allows for arbitrarily large deformation and free surface to evolve and can solve a wide range of non-linear problems in fluid and solid mechanics.…”

Section: Fluid-structure Interaction Algorithmmentioning

confidence: 99%

“…In this method, the material is tracked as it flows through the mesh by computing its Eulerian volume fraction (EVF) within each element. By definition, if a material completely fills an element, its volume fraction is one; if no material is present in an element, its volume fraction is zero [41].…”

Section: Fluid-structure Interaction Algorithmmentioning

confidence: 99%

“…However, as a matter of fact, the failure mechanism of the structure under slamming load should deserve more attention, which can better understand the slamming behavior. Damage morphologies are the most direct manifestation of failure mechanisms, which can be applied to identify the final fracture paths and critical failure modes [41]. In order to have an intui- tive and comprehensive understanding of the damage modes and failure mechanisms, the corresponding numerical simulated results are captured and analyzed.…”

Section: Damage Assessmentmentioning

confidence: 99%

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Numerical Investigation of Dynamic Response and Failure Mechanisms for Composite Lattice Sandwich Structure under Different Slamming Loads

et al. 2021

Appl Compos Mater

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This paper mainly investigates the slamming dynamic response and progressive damage evolution of the composite lattice sandwich structure under different slamming velocities and deadrise angles. Based on the Coupled Eulerian-Lagrangian (CEL) method, an integrated numerical model of sandwich structures is developed to simulate the slamming process, in which the progressive damage evolution of composite material is considered with VUMAT subroutine. The reliability and accuracy of the corresponding numerical models are verified through the comparison between numerical and experimental results. Then, the typical slamming behavior of composite lattice sandwich structure is analyzed in detail, including hydrodynamic force, jet flow/water pressure distribution, progressive damage evolution and absorption energy. Subsequently, the influences of slamming velocity and deadrise angle on the hydrodynamic response and damage modes of the sandwich structures are investigated based on the developed numerical models. The results demonstrate that the slamming velocity and deadrise angle have significant influences on the hydroelastic behavior and damage modes of composite lattice sandwich structures. In the process of slamming, matrix damage and delamination damage are more prone to appear in the chine region, while the fiber damage more likely occurs under the higher slamming velocity and lower deadrise angle cases.

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Section: Damage Model For the Aluminum Corementioning

confidence: 99%

Section: Fluid-structure Interaction Algorithmmentioning

confidence: 99%

Section: Fluid-structure Interaction Algorithmmentioning

confidence: 99%

Section: Damage Assessmentmentioning

confidence: 99%

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Numerical Investigation of Dynamic Response and Failure Mechanisms for Composite Lattice Sandwich Structure under Different Slamming Loads

et al. 2021

Appl Compos Mater

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“…FMLs exhibit very high strength in relation to their weight [33][34][35]. These properties derive from the properties of the individual components and depend on the properties and orientation of the reinforcing fibres, the kind of metal layer and its thickness [36][37][38]. The orientation of the fibres in relation to the successive layers of the FML determines the anisotropy or isotropy of the resultant composite [39,40].…”

Section: Introductionmentioning

confidence: 99%

New Advances and Future Possibilities in Forming Technology of Hybrid Metal–Polymer Composites Used in Aerospace Applications

et al. 2021

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Fibre metal laminates, hybrid composite materials built up from interlaced layers of thin metals and fibre reinforced adhesives, are future-proof materials used in the production of passenger aircraft, yachts, sailplanes, racing cars, and sports equipment. The most commercially available fibre–metal laminates are carbon reinforced aluminium laminates, aramid reinforced aluminium laminates, and glass reinforced aluminium laminates. This review emphasises the developing technologies for forming hybrid metal–polymer composites (HMPC). New advances and future possibilities in the forming technology for this group of materials is discussed. A brief classification of the currently available types of FMLs and details of their methods of fabrication are also presented. Particular emphasis was placed on the methods of shaping FMLs using plastic working techniques, i.e., incremental sheet forming, shot peening forming, press brake bending, electro-magnetic forming, hydroforming, and stamping. Current progress and the future directions of research on HMPCs are summarised and presented.

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Dynamic response and failure mechanism characterization of composite‐metal sandwich structures under slamming impact utilizing CEL method

Xie

Wang

et al. 2022

Polymer Composites

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Slamming is a complicated fluid-structure coupling process accompanied with complex transfer of load and energy, which may pose a significant risk to the overall safety of structure. This paper aims to evaluate the dynamic response and elucidate the failure mechanism of composite-metal sandwich structures under slamming impact. Firstly, a reliable numerical simulation process is established based on CEL method in ABAQUS/Explicit combining with a VUMAT subroutine, whose effectiveness is verified through the comparison with published experimental results. Subsequently, dynamic response of the sandwich structures is investigated considering the influence of slamming velocity and material constituent. Meanwhile, damage evolution and critical failure mechanism are assessed through progressive damage analysis. Results show that CF-Al-CF case owns the best mechanical performance and the latest

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Effect of elliptical notches on mechanical response and progressive damage of FMLs under tensile loading

Cited by 18 publications

References 63 publications

Numerical Investigation of Dynamic Response and Failure Mechanisms for Composite Lattice Sandwich Structure under Different Slamming Loads

Numerical Investigation of Dynamic Response and Failure Mechanisms for Composite Lattice Sandwich Structure under Different Slamming Loads

New Advances and Future Possibilities in Forming Technology of Hybrid Metal–Polymer Composites Used in Aerospace Applications

Dynamic response and failure mechanism characterization of composite‐metal sandwich structures under slamming impact utilizing CEL method

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