Investigation of damping characteristics on<scp>PLA</scp>robotic gripper fingers with magnetorheological fluid core and unimorph piezoelectric<scp>MFC</scp>

Ramkumar, Gunasekaran; Jesu, Gnanaprakasam Arul; Marimuthu, Thirumarimurugan

doi:10.1002/pen.25991

Cited by 3 publications

(1 citation statement)

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“…[6][7][8] A range of stiffness and strength of honeycomb sandwich structures at low weight will be accomplished by choosing the proper shape, size, and materials for the core. [9][10][11][12][13] Many studies have been performed on vibration analysis to evaluate the dynamic properties of smart sandwich beams, [14][15][16] sandwich panels, [17][18][19][20] and hybrid composite laminates. [21][22][23] Boudjemai et al 24 worked on an equivalent model of a composite honeycomb sandwich plate and compared it with experiments by investigating their modal behaviors.…”

Section: Introductionmentioning

confidence: 99%

Vibrational behavior of a 3D printed biomimetic dual‐core composite sandwich beam: An experimental and numerical study

Thanikasalam,

Ramamoorthy

2023

Polymer Composites

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Composite sandwich structures have been used in various applications like aerospace, automotive, and maritime sectors. The process of identifying the core design and the selection of a prominent core is crucially important in sandwich structures. In this study, biomimetic core development and vibration responses of composite sandwich beams with a dual biomimetic honeycomb core are investigated. The composite face layers are fabricated by the hand lay‐up method, and the fused deposition modeling is used to 3D print the PLA honeycomb cores. Based on ASTM‐E1876 and the alternative dynamic approach, the face layer elastic properties and rigidity modulus of the cores are evaluated, respectively. The numerical simulation is used to predict the sandwich panels' natural frequencies and mode shapes and verified with experimental results. There was an excellent agreement between the calculated and experimental natural frequencies. Due to the presence of the core and enhanced rigidity modulus, the dual lamellar honeycomb core sandwich beam produces the highest natural frequencies among all‐composite sandwich beams, followed by the dual regular honeycomb, single lamellar honeycomb, and single regular honeycomb cores. The geometric parametric studies, including core thickness, length‐to‐breadth ratio, lamination schemes, support conditions, and transverse vibration responses were also analyzed for different sandwich patterns. As a result of this work, thick composite sandwich panels in aeronautical and marine structures can be replaced with dual biomimetic core structures. The study highlights the fact that the dual‐core sandwich beam provided greater modal frequency than the single‐core beam with the same weight proportions.Highlights Pistachio nut shell‐based biomimetic honeycomb core has been developed. Alternative dynamic approach is used to find sandwich‐core shear properties. Lamellar‐infused biomimetic model yields higher shear modulus and stiffness. Dual‐core beam having high flexural stiffness enhances the natural frequency. Various parametric studies were analyzed for different sandwich patterns.

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Section: Introductionmentioning

confidence: 99%

Vibrational behavior of a 3D printed biomimetic dual‐core composite sandwich beam: An experimental and numerical study

Thanikasalam,

Ramamoorthy

2023

Polymer Composites

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Investigation of Damping Characteristics on PLA and PVC Cantilever Structures with Magnetorheological Fluid Core

Ramkumar¹,

Gnanaprakasam²,

Thirumarimurugan³

2022

J. Vib. Eng. Technol.

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Comprehensive glass/banana fiber characterization with zirconium carbide filler-reinforced hybrid composites for lightweight structural applications

Muniyan,

Suganya Priyadharshini,

Thiagarajan

et al. 2024

Eng. Res. Express

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The enhancement of the properties of fiber-based polymer composites is generally possible by the hybridization of fibers. Using synthetic and natural fibers in the composites will enhance the applications, and the problem of voids is solved by using fillers. Mixing banana fiber with glass fibers creates a lightweight yet robust material for architectural elements such as panels and insulation. The current investigation encompassed the production of a glass/banana hybrid composite by integrating a Zirconium carbide (ZrC) filler via compression molding methodologies. The filler proportion varied at five levels: 0wt.%, 0.5wt.%, 1wt.%, 1.5wt.% and 2wt.%, within an epoxy resin matrix. The composite materials underwent mechanical, water absorption, and vibration analysis. Furthermore, the fractured surface was examined using a field emission scanning electron microscope (FESEM) better to understand the interactions between the fibers and the matrix. The initial findings indicated that the incorporation of Banana and glass fibers in composite materials has the potential to achieve an optimal balance between strength and versatility. The key findings include a considerable increase in tensile, flexural, and impact strengths with 1.5wt.% ZrC filler, with improvements of up to 34.5% in impact strength and 44.7% in compressive strength over the unfilled composite.

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Investigation of damping characteristics onPLArobotic gripper fingers with magnetorheological fluid core and unimorph piezoelectricMFC

Cited by 3 publications

References 48 publications

Vibrational behavior of a 3D printed biomimetic dual‐core composite sandwich beam: An experimental and numerical study

Vibrational behavior of a 3D printed biomimetic dual‐core composite sandwich beam: An experimental and numerical study

Investigation of Damping Characteristics on PLA and PVC Cantilever Structures with Magnetorheological Fluid Core

Comprehensive glass/banana fiber characterization with zirconium carbide filler-reinforced hybrid composites for lightweight structural applications

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