Composite-to-metal joining using interference fit micropins

Inverarity, S.; Das, Raj; Mouritz, A.P.

doi:10.1016/j.compositesa.2022.106895

Cited by 13 publications

(1 citation statement)

References 41 publications

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“…A novel joint of carbon-epoxy laminate and aluminium alloy was reinforced with an array of steel micro pins of 0.51 mm diameter inserted into pre-drilled holes to achieve an interference fit of 1%. Both the ultimate strength and ductility were increased under lap shear and peel load conditions [34]. In another study of carbon-fibre composite and aluminium joints, fatigue tests were performed in addition to static load tests; both tests demonstrated the beneficial effect of penetrative thin pins [35].…”

Section: Introductionmentioning

confidence: 99%

A Finite Element Model for Predicting the Static Strength of a Composite Hybrid Joint with Reinforcement Pins

et al. 2023

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This paper presents a finite element model for predicting the performance and failure behaviour of a hybrid joint assembling fibrous composites to a metal part with reinforcement micro pins for enhancing the damage tolerance performance. A unit-strip model using the cohesive elements at the bond interface is employed to simulate the onset and propagation of debonding cracks. Two different traction–separation laws for the interface cohesive elements are employed, representing the fracture toughness properties of the plain adhesive bond and a pin-reinforced interface, respectively. This approach can account for the large-scale crack-bridging effect of the pins. It avoids using concentrated pin forces in the numerical model, thus removing mesh-size dependency, and permitting more accurate and robust computational analysis. Lap joints reinforced with various pin arrays were tested under quasi-static load. Predicted load versus applied displacement relations are in good agreement with the test results, especially for the debonding onset and early stage of crack propagation.

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Section: Introductionmentioning

confidence: 99%

A Finite Element Model for Predicting the Static Strength of a Composite Hybrid Joint with Reinforcement Pins

et al. 2023

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Generalized Method for Rational Selection of Parameters for Interference Fits Using Computer-Aided Joint Design Systems

Nechiporenko

Salo

Litovchenko

et al. 2023

Lecture Notes in Mechanical Engineering

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On the infiltration of cellular solids by sheet molding compound: process simulation and experimental validation

Bernardi,

Sensini,

Raimondi

et al. 2024

Int J Adv Manuf Technol

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This study examines a numerical method to simulate the production of novel multi-material metal-composite components, where an additive-manufactured cellular solid is infiltrated by a sheet molding compound (SMC) in a single-step compression molding operation. A single-fiber numerical approach is adopted to predict microstructural changes, such as fiber orientation, fiber-matrix separation, and fiber volume content variations during molding. The accuracy of the numerical predictions is confirmed by physical samples using micro-computed tomography and optical microscopy investigations at both the qualitative and quantitative scales. From optical microscopy observations, there emerged a positive correlation between experimental outcomes and simulation results, accurately capturing fiber swirling, wrinkling, and draping that occurred during molding. At a quantitative scale, a 0.6% mismatch was observed when void volume and unfilled areas were compared, as measured by micro-computed tomography and numerical simulation.

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Composite-to-metal joining using interference fit micropins

Cited by 13 publications

References 41 publications

A Finite Element Model for Predicting the Static Strength of a Composite Hybrid Joint with Reinforcement Pins

A Finite Element Model for Predicting the Static Strength of a Composite Hybrid Joint with Reinforcement Pins

Generalized Method for Rational Selection of Parameters for Interference Fits Using Computer-Aided Joint Design Systems

On the infiltration of cellular solids by sheet molding compound: process simulation and experimental validation

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