Core material effect on wave number and vibrational damping characteristics in carbon fiber sandwich composites

Sargianis, James J.; Suhr, Jonghwan

doi:10.1016/j.compscitech.2012.06.024

Cited by 48 publications

(18 citation statements)

References 20 publications

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“…The investigators reported an improvement in the acoustic damping properties of the composite, an attribute that plays an important role in some application, such as vehicles' shell. Other investigators have also discussed about the existing link between the structural and acoustic damping ratios [22,23].…”

Section: Introductionmentioning

confidence: 99%

Use of a Simple Non-Destructive Technique for Evaluation of the Elastic and Vibration Properties of Fiber-Reinforced and 3D Fiber-Metal Laminate Composites

Cicco

Taheri‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬

2018

Fibers

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The aim of this paper is to assess the accuracy and reliability of a simple non-destructive sonic technique for evaluating the effective elastic and vibration properties (damping coefficient) of various isotropic and orthotropic materials-in particular, of a recently developed class of 3D fiber-metal laminates (FML). Aluminum, E-glass/epoxy composite, 3D-FML, and glass-reinforced aluminum FML (GLARE) materials were considered. It is exhibited that the 3D-FML offers the greatest damping characteristics in comparison to all the considered materials. Moreover, the sonic technique, facilitated through the use of a GrindoSonic equipment, proves to produce accurate and reliable results with minimal effort. Finite element analysis is also employed to further establish the accuracy of the properties evaluated by the experimental data. The utility of the established homogenized experimental properties within the finite element framework is also discussed.

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Section: Introductionmentioning

confidence: 99%

Use of a Simple Non-Destructive Technique for Evaluation of the Elastic and Vibration Properties of Fiber-Reinforced and 3D Fiber-Metal Laminate Composites

Cicco

Taheri‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬

2018

Fibers

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“…The larger difference of elastic modulus between shell material (mainly filled PP) and core material (mainly SBS) was designed, the more significant improvement in sound wave response can be achieved without sacrificing the stiffness, which is critical to design damping structures. 39 In the case of TPE/HGM composites, despite that the HGM density is lower than that of polymer, the elastic modulus is improved owning to the lag of the motion of macromolecular chains and the increase in the dynamic complex viscosity of the composites. 40,41 Although the morphology of TPE-based composites is widely different to the multilayer composites, the trends of STL versus frequency of TPE-based composites are closely analogous to that of multilayer composites.…”

Section: Resultsmentioning

confidence: 99%

Enhanced sound insulation and mechanical properties based on inorganic fillers/thermoplastic elastomer composites

Fang

Fei

et al. 2018

Journal of Thermoplastic Composite Materials

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In this work, a series of the thermoplastic elastomer (TPE) composites filled with micro CaCO3 and hollow glass microspheres (HGM) via alloying process were investigated. The plastic phase of TPE composite referred to polypropylene (PP) and the rubber phase was chosen by styrene butadiene styrene (SBS). SEM observation conformed that the inorganic particles were mainly dispersed in continuous PP phase and SBS phase remained in an isolated structure. The sound insulation property was measured by a four-microphone impedance tube. Compared to pure polymer sample, both CaCO3 and HGM-filled TPE composites exhibited greatly enhanced soundproof efficiency, which increased the sound transmission loss value from original 29 dB to 45 dB. The soundproof mechanism was investigated in detail. The damping of acoustic energy was contributed by the extended difference between the stiffness and acoustic impedance between plastic phase and rubber phase. The dispersion and property of inorganic fillers were considered as key factors to increase the dissipation of sound wave. Meanwhile, the mechanical properties of TPE composites were enhanced due to the addition of inorganic fillers.

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“…Sargianis and Suhr [82] focused to investigate the structural-vibrational performance of carbon-Fibre face sheet sandwich composite beams with varying core materials and properties. The structural-vibrational performance including acoustic and vibrational damping properties was experimentally characterized by analyzing the wave number response, and structural damping loss factor (g) from the frequency response functions, respectively The analysis also showed the importance of using a honeycomb core's effective properties for equal comparison to foam-cored sandwich structures.…”

Section: Sandwichmentioning

confidence: 99%

Hybrid Sandwich Panels: A Review

Sandeep

Srinivasa

2020

International Journal of Applied Mechanics and Engineering

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A high specific stiffness, high specific strength, and tailoring the properties for specific application have attracted the attention of the researchers to work in the field of laminated composites and Sandwich structures. Rapid use of these laminated composites and Sandwich structures necessitated the development of new theories that suitable for the bending, buckling and vibration analysis. Many articles were published on free vibration of beams, plates, shells laminated composites and sandwich structures. In this article, a review on free vibration analysis of shear deformable isotropic beams, plates, shells, laminated composites and sandwich structures based on various theories and the exact solution is presented. In addition to this, the literature on finite element modeling of beams, plates, shells laminated composites and sandwich structures based on classical and refined theories is also reviewed. The present article is an attempt to review the available literature, made in the past few decades on free flexural vibration response of Fiber Metal laminated Composites and Sandwich panels using different analytical models, numerical techniques, and experimental methods.

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Core material effect on wave number and vibrational damping characteristics in carbon fiber sandwich composites

Cited by 48 publications

References 20 publications

Use of a Simple Non-Destructive Technique for Evaluation of the Elastic and Vibration Properties of Fiber-Reinforced and 3D Fiber-Metal Laminate Composites

Use of a Simple Non-Destructive Technique for Evaluation of the Elastic and Vibration Properties of Fiber-Reinforced and 3D Fiber-Metal Laminate Composites

Enhanced sound insulation and mechanical properties based on inorganic fillers/thermoplastic elastomer composites

Hybrid Sandwich Panels: A Review

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