Using a cohesive zone modeling to predict the compressive and tensile behavior on the failure load of single lap bonded joint

Benamar, Badr; Mokhtari, Mohamed; Madani, K.; Benzaama, Habib

doi:10.3221/igf-esis.50.11

Cited by 15 publications

(4 citation statements)

References 30 publications

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“…In this approach, a cohesive zone model, which included a damage model for the joints similar to models focusing on interface damages and delamination of composites (Ref [38][39][40][41][42], was used for the interactions between the joining partners. The basis for cohesive contact is a bilinear cohesive law with an elastic traction-separation behavior, which is mathematically expressed for two-dimensional calculations before damage initiation by Eq.…”

Section: Development Of Fe-modelsmentioning

confidence: 99%

Relation Between Interface Geometry and Tensile Shear Strength of Ultrasonically Welded Joints

Arweiler-Böllert,

Liesegang,

Beck

et al. 2023

J. of Materi Eng and Perform

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The reliable use of ultrasonic metal welding requires a thorough understanding of the relevant bonding mechanisms. This article presents an approach to systematically investigate the relation between the mechanical properties and the interface of selected Al/Cu and Al/GFRP joints. The hypothesis is that the microstructure and tensile shear strength of the specimen can be related to their interface properties presented by contact stiffness and damage initiation traction. For this purpose, the mentioned hybrid material systems were ultrasonically welded using specific parameters to achieve defined levels of mechanical joint strengths. Micro sections and fracture surfaces were characterized to identify the interface geometry at certain strength levels. The main findings were different shares of bonded areas in the interface and characteristic micro geometries. Microscale finite element models of representative samples were developed to determine the stress and deformation behavior in the interface under tensile shear load and to compare the influence of the interface geometry on contact conditions to a simplified model. The simulations provide information about the influence of different damage initiation tractions and geometrical characteristics in the joints’ interfaces, as well as their contribution to the overall joint strength. For prospective industrial applications, they can serve as basis for further development of a contact model on component scale.

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Section: Development Of Fe-modelsmentioning

confidence: 99%

Relation Between Interface Geometry and Tensile Shear Strength of Ultrasonically Welded Joints

Arweiler-Böllert,

Liesegang,

Beck

et al. 2023

J. of Materi Eng and Perform

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“…Bonded systems are presented as a composite material where the adhesive is the weakest element that conditions the response and resistance of the system. The behaviour and strength parameters of adhesives, as shown by many researchers, are what condition the strength of bonded assemblies, such as the work presented by Badr et al [1] and that of Blaili et al [2,3]. Other authors were also Nunes et al [4] who compared the tensile strength for three qualities of the adhesive, the strong and brittle Araldite AV138, the less strong but ductile Araldite 2015, the high strength and ductility Sikaforce ® 7888.…”

Section: Introductionmentioning

confidence: 99%

Predicting Damage in Single-Lap Composite Joints with Nonlinear CZM behaviour using FGM Concept in Fibre-Matrix Coupling Laws

Messabih,

Mokhtari,

Bentoumi

et al. 2023

Preprint

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This work represents a novel and innovative numerical approach, which involves validating the results against experimental data to ensure reliability. This study focuses on incorporating the volume fraction of the FGM concept into the fibre-matrix mixing laws of unidirectional composites. Notably, a nonlinear formulation has been employed to account for the adhesive's ductility, and the CZM model has been integrated into the finite element analysis using the ABAQUS code. The CZM model in this study incorporates both shear and detachment modes, characterized by increasing adhesive stress in a trapezoidal shape. The proposed approaches introduce fibre presence in the matrix per layer, with concepts like C-1 having denser fibres in the middle of the thickness and others like C-2 and C-3 closer to the plate end. These concepts are designed to mitigate the transmission of loads to the adhesive joint and explore their influence on different responses and damage levels through adhesive plasticization. Additionally, due to the attached plates, the stiffness of the system significantly affects the overall response and resistance under mixed loading conditions.

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“…Research comparing the shear strength of co-curing, cobonding, and secondary bonding joint types shows that the co-curing technique can provide higher shear strength and the strength of the joint against shear loads can also be improved by adding multiwall carbon nanotubes (MWCNTs). Research related to modeling adhesive joints using the cohesive zone model has also been conducted on single-lap joints to evaluate each parameter that affects the strength of the joint [8]. Each joint has its advantages and disadvantages.…”

Section: Introductionmentioning

confidence: 99%

Effect of Adhesive Types and Fiber Orientation on Mechanical Properties of Single Lap Joint Composite Using Vacuum-Assisted Resin Infusion Manufacturing Method

Gunawan,

Widanto,

Abdurohman

et al. 2024

Proceedings of the 2nd International Conference on Aviation Industry, Education, and Regulation, AVINER 2023, 8-9 November 2023

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Composite materials have been widely used in various industries due to their high specific strength and stiffness. Although composite materials have the flexibility to create designs with good integrity, connections between structures may have to be made due to the design of the structure and the cost of the manufacturing process. This paper will evaluate especially the shear strength of composite joints using the single-lap joint method with various adhesive types and ply stacking orientation face of the joint. The composite was made using a vacuum-assisted resin infusion manufacturing technique using carbon fiber and chempoxy resin with specific unidirectional, orthotropic, and quasi-isotropic arrangement orientations. The results showed that the using of the same adhesive as the composite resin type, chempoxy adhesive had the highest value a lap shear strength of 11,43 MPa compared to other adhesives with tested interface layer 0°. The variation of the direction interface layer is a variable that has a significant effect on lap shear strength. The results showed that the quasi-isotropic with interface layers 0°, 90°, and +45 ° has lap shear strength of 7.42 MPa, 6.34 MPa, and 5.46 MPa respectively. The difference in shear strength values in lap joints with variations direction of stacking ply in the interface layer of the adhesive is also evident from the failure modes that occur in the specimens.

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Using a cohesive zone modeling to predict the compressive and tensile behavior on the failure load of single lap bonded joint

Cited by 15 publications

References 30 publications

Relation Between Interface Geometry and Tensile Shear Strength of Ultrasonically Welded Joints

Relation Between Interface Geometry and Tensile Shear Strength of Ultrasonically Welded Joints

Predicting Damage in Single-Lap Composite Joints with Nonlinear CZM behaviour using FGM Concept in Fibre-Matrix Coupling Laws

Effect of Adhesive Types and Fiber Orientation on Mechanical Properties of Single Lap Joint Composite Using Vacuum-Assisted Resin Infusion Manufacturing Method

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