Delamination Buckling and Crack Propagation Simulations in Fiber-Metal Laminates Using xFEM and Cohesive Elements

Cicco, Davide De; Taheri‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬, Farid

doi:10.3390/app8122440

Cited by 22 publications

(9 citation statements)

References 23 publications

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“…However, since crack can propagate through elements, coarser mesh can be used in a smaller model, which can lead to a less complex model [87]. De Cicco and Taheri [88] compare the cohesive elements approach with the XFEM approach and also the mixed one. They point out that using XFEM can lead to more accurate results, however, for complex geometries cohesive elements are the better choice in terms of solution time especially if a crack path is known a priori.…”

Section: Adhesive Layer Modelingmentioning

confidence: 99%

A Review on Finite-Element Simulation of Fibre Metal Laminates

Smolnicki

Lesiuk

Duda

et al. 2022

Arch Computat Methods Eng

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Fibre metal laminates (FML) are layered materials consisting of both metal and reinforced composite layers. Due to numerous possibilities of configuration, constituent materials, etc., designing and testing such materials can be time- and cost-consuming. In addition to that, some parameters cannot be obtained directly from the experiment campaign. These problems are often overcome by using numerical simulation. In this article, the authors reviewed different approaches to finite element analysis of fibre metal laminates based on published articles and their own experiences. Many aspects of numerical modelling of FMLs can be similar to approaches used for classic laminates. However, in the case of fibre metal laminates, the interface between the metal and the composite layer is very relevant both in experimental and numerical regard. Approaches to modelling this interface have been widely discussed. Numerical simulations of FMLs are often complementary to experimental campaigns, so an experimental background is presented. Then, the software used in numerical analysis is discussed. In the next two chapters, both static and fatigue failure modelling are discussed including several key aspects like dimensionality of the model, approaches to the material model of constituents and holistic view of the material, level of homogenization, type of used finite elements, use of symmetry, and more. The static failure criteria used for both fibres and matrix are discussed along with different damage models for metal layers. In the chapter dedicated to adhesive interface composite—metal, different modelling strategies are discussed including cohesive element, cohesive surfaces, contact with damage formulation and usage of eXtended Finite Element Method. Also, different ways to assess the failure of this layer are described with particular attention to the Cohesive Zone Model with defined Traction–Separation Law. Furthermore, issues related to mixed-mode loading are presented. In the next chapter other aspects of numerical modelling are described like mesh sensitivity, friction, boundary conditions, steering, user-defined materials, and validation. The authors in this article try to evaluate the quality of the different approaches described based on literature review and own research.

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Section: Adhesive Layer Modelingmentioning

confidence: 99%

A Review on Finite-Element Simulation of Fibre Metal Laminates

Smolnicki

Lesiuk

Duda

et al. 2022

Arch Computat Methods Eng

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“…A sophisticated method of optimising properties of synthetic FRP sandwich panels for impact loading based on a genetic algorithm has also been developed [25]. Additionally, numerous studies have been completed on the modelling of sandwich structures under impact loads using the finite element method [26–33]. Some studies have also been performed on natural fibre sandwich panels under impact [34,35]; however, there is still a gap in the field concerning the impact behaviour of sandwich panels with natural fibre faces such as FFRPs.…”

Section: Introductionmentioning

confidence: 99%

Experiments and nonlinear analysis of the impact behaviour of sandwich panels constructed with flax fibre-reinforced polymer faces and foam cores

Betts

Sadeghian

Fam

2020

Jnl of Sandwich Structures & Materials

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As the effects of climate change become more apparent, it is necessary that environmental impact is considered in every aspect of our society, including the design of new infrastructure. The use of natural materials for building construction is one way to improve the sustainability of infrastructure and therefore it is important that the behaviour of structures made with natural materials be investigated extensively and well understood. In this study, the performance of sandwich panels constructed with flax fibre-reinforced polymer faces and foam cores under impact loading is studied experimentally and analytically. The parameters of the tests were facing thickness (1, 2 and 3 layers of flax fabric) and core density (32, 64 and 96 kg/m3). Each specimen was 1220 mm long, 152 mm wide and approximately 80 mm thick and was tested by a 10.41 kg drop weight impact at mid-span. Each specimen was tested multiple times starting at a drop height of 100 mm and increasing the height by 100 mm for each subsequent test until ultimate failure. The results indicate that the ultimate impact energy increases with both core density and face thickness. The four main failure modes observed were: compression face crushing, compression face wrinkling, core shear and tension face rupture. The failure modes observed generally matched those observed during similar quasi-static testing. Additionally, a nonlinear incremental iterative model was developed based on the conservation of energy during an impact event and the nonlinear mechanical behaviour of both the fibre-reinforced polymer faces and foam cores. This novel model accurately predicts the total deflection and face strains based on the energy of an impact.

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“…Although the previously mentioned discrete crack model can provide intuitionistic and realistic simulations of crack behavior, their calculation results are sensitive to mesh distortion. In recent years, simulating discrete crack by cohesive zone model [12] and extended finite element method [13] are widely recognized as reliable approaches for their low mesh sensitivity and satisfactory convergent property [14].…”

Section: Introductionmentioning

confidence: 99%

Meso-Scale Simulation of Concrete Based on Fracture and Interaction Behavior

Xiong

Xiao

2019

Applied Sciences

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Based on the cohesive zone model, a meso-scale model is developed for numerical studies of three-phase concrete under tension and compression. The model is characterized by adopting mixed-mode fracture and interaction behavior to describe fracture, friction and collision in tension and compression processes. The simulation results match satisfactorily with the experimental results in both mechanical characteristics and failure mode. Whole deformation and crack propagation process analyses are conducted to reveal damage evolution of concrete. The analyses also set a foundation for the following parametric studies in which mode II fracture energy, material parameter, frictional angle and aggregates’ mechanical characteristics are considered as variables. It shows that the mixed-mode fracture accounts for a considerable proportion, even in tension failure. Under compression, the frictional stress can constrain crack propagation at the beginning of the damage and reestablish loading path during the softening stage. Aggregates’ mechanical characteristics mainly affect concrete’s performance in the mid-and-late softening stage.

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Delamination Buckling and Crack Propagation Simulations in Fiber-Metal Laminates Using xFEM and Cohesive Elements

Cited by 22 publications

References 23 publications

A Review on Finite-Element Simulation of Fibre Metal Laminates

A Review on Finite-Element Simulation of Fibre Metal Laminates

Experiments and nonlinear analysis of the impact behaviour of sandwich panels constructed with flax fibre-reinforced polymer faces and foam cores

Meso-Scale Simulation of Concrete Based on Fracture and Interaction Behavior

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