The flexural behaviors of the impacted composite single-lap adhesive joints

Ergun, Emin; Çallıoğlu, Hasan

doi:10.1515/secm-2013-0308

Cited by 4 publications

(2 citation statements)

References 19 publications

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“…However, at 20 J, the residual strength of the joints increased due to the mutual embedding of the adhesive and adherend. Ergun et al [ 28 ] investigated the flexural behavior of SLJs when three overlap lengths were subjected to different impact energies through an experimental method. They found that the overlap length and the impact energy level greatly affected the impact response of composite laminate SLJs.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Study of Low-Velocity Impact and Tensile after Impact for CFRP Laminates Single-Lap Joints Adhesively Bonded Structure

Huang

2021

Materials

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To investigate the mechanical behavior of the single-lap joints (SLJs) adhesively bonded structure of carbon fiber reinforced polymer (CFRP) laminates under the low-velocity impact (LVI) and tensile-after impact (TAI), tests and simulations were carried out. A finite element model (FEM) was established based on the cohesive zone model (CZM) and Hashin criterion to predict the damage evolution process of adhesive film, intra- and inter-laminar of the SLJs of CFRP laminates, and its effectiveness was verified by experiments. Moreover, three different overlap lengths (20 mm, 30 mm, and 40 mm) and four different impact energies (Intact joint, 10 J, 20 J, and 30 J) are considered in the present study. Finally, the effects of different impact energies and overlap lengths on the residual strength of SLJs after impact were discussed. The results divulged that numerical results of impact and TAI processes of SLJs were in good agreement with experiment results. During the impact process, the damage of the laminates was primarily fiber and matrix tensile damage, whereas the adhesive film was damaged cohesively; the areas of damage increased with the increase of impact energy, and the normal stress of the adhesive film expanded from the edge to the middle region with the increase of impact force. The influence of LVI on SLJs adhesively bonded structures was very significant, and it is not effective to obtain a higher impact resistance by increasing the overlap length. For the tensile process, the failure mode of TAI of the SLJs was interface failure, the surplus strength of the SLJs gradually decreased with the increase of the impact energy because of the smaller overlap length, the overlap length more than 30 mm, and the low energy impact has almost no effect on the residual strength of the SLJs.

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Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Study of Low-Velocity Impact and Tensile after Impact for CFRP Laminates Single-Lap Joints Adhesively Bonded Structure

Huang

2021

Materials

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“…Besides, the experimental tests, a finite element simulation is carried out to analyze the stress fields inside the joints. Ergun and Callioglu [12] investigated flexural behaviors of composite single-lap adhesive joints after impact tests. It is shown that the residual flexural loads after impact increase with increasing overlap lengths but decrease with increasing impact energy.…”

Section: Introductionmentioning

confidence: 99%

The Effect of the Boundary Conditions on the Impact Behaviors of Stitched Composite Lap Joints

Ergun

Gökkaya

2016

Advanced Composites Letters

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In this study, transverse impact behaviors of stitch adhesively bonded composite lap joints having three different overlap lengths (20, 40 and 60 mm) at different energy levels are investigated. The effects of the boundary conditions (clamped-clamped and clamped-free) and three different span lengths (40, 60 and 80 mm) have been determined. The impacts energies are varied in a range from 5 J to 20 J. Vacuum assisted resin infusion method (VARIM) is used to manufacture composite plates. It is shown that the boundary conditions and span lengths affect considerably the impact responses of the stitch composites lap joints. The important impact characteristics of the composite lap joints are compared with each other and discussed. The observed damages of the composite lap joints are presented.

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Numerical and experimental study of the residual strength of CFRP laminate single-lap joint after transverse impact

Yang,

Xuan,

Qin

et al. 2024

International Journal of Adhesion and Adhesives

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The flexural behaviors of the impacted composite single-lap adhesive joints

Cited by 4 publications

References 19 publications

Experimental and Numerical Study of Low-Velocity Impact and Tensile after Impact for CFRP Laminates Single-Lap Joints Adhesively Bonded Structure

Experimental and Numerical Study of Low-Velocity Impact and Tensile after Impact for CFRP Laminates Single-Lap Joints Adhesively Bonded Structure

The Effect of the Boundary Conditions on the Impact Behaviors of Stitched Composite Lap Joints

Numerical and experimental study of the residual strength of CFRP laminate single-lap joint after transverse impact

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