Progressive damage analysis of an adhesively bonded composite T-joint under bending, considering micro-scale effects of fiber volume fraction of adherends

Barzegar, Mohsen; Moallem, Meisam Davoodi; Mokhtari, M.

doi:10.1016/j.compstruct.2020.113374

Cited by 32 publications

(16 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The elasticity modules of the adhesives used in descending order; EA9395> FM73> EN11343. When the graph is examined, it has been observed that the contact forces related to this have increased [26].…”

Section: Resultsmentioning

confidence: 99%

Effect of repair parameters on composite plates under low velocity impact

Albayrak¹,

Gür

Kaman

2022

European Mechanical Science

View full text Add to dashboard Cite

In this study, the impact behavior of patch-repaired layered composite plates was numerically investigated under low velocity impact loads. For this purpose, composite plates designed in different geometric combinations were repaired with patches using various adhesives. Impact behavior of these composites investigated by dropping the strikers with different velocities on the repaired composite plate. The laminated composite was used as the sheet and patch material, and the orientation angles were set as [0°/45°/45°/0°] for the sheet and [0°/45°] for the patch. ANSYS-Ls-Dyna finite element packet program was used for threedimensional modelling and solution. It was determined that the hexagonal patch type performs better than other patch geometries.

show abstract

Section: Resultsmentioning

confidence: 99%

Effect of repair parameters on composite plates under low velocity impact

Albayrak¹,

Gür

Kaman

2022

European Mechanical Science

View full text Add to dashboard Cite

show abstract

“…Actually, by considering a vertical bonding in a T-joint, the P m increase was negligible, although the bondline increased by 123%. In a different work [14], CZM was used to address the adhesive type and geometry effects on the bending characteristics of T-joints. The joints were made of carbon-epoxy (IM7/8552) and glass-epoxy (E-glass/Epon 828) adherends.…”

Section: Introductionmentioning

confidence: 99%

Design Concepts for Peel-Dominant Adhesive Joints in Aeronautic Applications

Lopes

Campilho

Bellali

et al. 2023

J. Res. Updates Polym. Sci.

View full text Add to dashboard Cite

The adhesive bonding technique is employed from the aeronautical/aerospace industry to current house products. To comply with the requirements of distinct applications, different joint configurations are available to the designer. While single-lap joints (SLJ) are the most common in application and research, double-lap joints, scarf joints and T-joints find specific applications. T-joints are seldom studied in the literature, but these are used, for instance, in aircraft to bond the stiffener beams to the skin, or in the cars between the B-pillar and the rocker. Due to the high stress concentrations, T-joints often fail under average stresses much lower than the adhesive strengths, giving rise to the necessity for proper design and strength improvement methodologies. This work initially aims to validate the cohesive zone modelling (CZM) technique with experiments, and then use it to numerically evaluate and optimize the performance of T-joints subjected to peel loads. CZM is nowadays regarded as the most powerful strength prediction tool for adhesive joints, and can be a valuable tool to improve T-joints. Different features are addressed for a complete analysis: adhesive type, geometrical parameters, dual-adhesive technique for strength improvement, and composite joints. The evaluated geometrical parameters are the base adherend thickness (a), T-part thickness (t), overlap or bonding length (l) and curvature radius (r). As a result of this work, the model was successfully validated, and clear design guidelines were provided to define the ideal geometric and material (adhesive) conditions for best performance.

show abstract

“…17,18 Bai et al 19 tried to provide an insight into the practical and expedient progressive damage modeling (PDM) technique to simulate accurately failure mechanism and mechanical properties of composite T-joints under tensile loading. Barzegar et al 20 presented a parametric study, including adhesives, fiber volume fractions, and geometrical properties of composite adherends, of the reinforced composite T-joints and their failure behaviors under bending loading. You et al 21 investigated the failure and enhancement mechanism of bolt-strengthening glass fiber reinforced polymer (GFRP) T-joints under quasi-static tension.…”

Section: Introductionmentioning

confidence: 99%

“…[29][30][31] On the other hand, many researchers study generally progressive damage analysis of composite T-joint under tensile loading 18 or bending. 19 Moreover, some authors conducted numerical analysis and experiment T-joint structure reinforced by composite fasteners, 15 bolts, 20 and Z-pin. 32 However, few studies have focused on T-joints, which inevitably suffer from LVIs over their entire lifespan, degrading their overall performance.…”

Section: Introductionmentioning

confidence: 99%

Experimental and simulative investigation on the mechanical behavior of GFRP T‐joints subjected to low‐velocity‐impact and post‐impact tensile loading

Jin,

Zhang,

et al. 2023

Polymer Composites

View full text Add to dashboard Cite

To investigate the failure mechanism of the composite T‐joints subjected to low‐velocity‐impact (LVI) loading varying impact locations, a methodology composed of improved conventional vacuum‐assisted resin infusion (VARI) and LVI testing based on ASTM D 7136 is developed and employed. Moreover, the simulation is conducted to mainly reveal the damage evolution of interlaminar delamination between web and web/skin laminate based on surface‐based cohesive behavior in the commercial software of Abaqus 2020. Further, the effect of LVI loading with various distances from the web laminate to the impact location on the mechanical property and failure mode of the composite T‐joints are presented and discussed as well. By comparison, larger vertical cracks and higher residual tensile strength are found in the T‐joints impacting the corner. However, the T‐joints with the impact point near the corner have lower residual tensile strength and suffer more interlaminar delamination in the interface between web and skin, which is the most critical position of failure.Highlights GFRP T‐joints are manufactured by the vacuum‐assisted resin infusion process with a newly designed mold. The damage evolution in low‐velocity‐impact tests is presented via the quasi‐static tests and finite element simulation. Larger vertical cracks and higher residual tensile strength are found in the T‐joints impacting the corner. The T‐joints with the impact point near the corner have lower residual tensile strength. Interlaminar delamination in the interface between web and skin is the most critical factor of tensile failure.

show abstract

Progressive damage analysis of an adhesively bonded composite T-joint under bending, considering micro-scale effects of fiber volume fraction of adherends

Cited by 32 publications

References 35 publications

Effect of repair parameters on composite plates under low velocity impact

Effect of repair parameters on composite plates under low velocity impact

Design Concepts for Peel-Dominant Adhesive Joints in Aeronautic Applications

Experimental and simulative investigation on the mechanical behavior of GFRP T‐joints subjected to low‐velocity‐impact and post‐impact tensile loading

Contact Info

Product

Resources

About