Damping properties of thermoplastic-elastomer interleaved carbon fiber-reinforced epoxy composites

Kishi, Hajime; Kuwata, Manabu; Matsuda, Satoshi; Asami, Toshihiko; Murakami, Atsushi

doi:10.1016/j.compscitech.2004.05.006

Cited by 136 publications

(89 citation statements)

References 4 publications

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“…This does not mean, however, that errors due to the decoupling approximation are minimized. Finally quite similar research like that in our article is the one by Kishi et al [8] who studied the damping properties of carbon fiberreinforced epoxy composites by the mechanical impedance method. He used several types of thermoplastic-elastomer films, such as polyurethane elastomers and polyethylenebased ionomers as the interleaving materials.…”

Section: Introductionsupporting

confidence: 49%

“…Damping characteristics of the beam are derived from the response of the input signal using the Fourier transform. Also some nondestructive evaluation (NDE) techniques such as acoustic emission and vibration damping techniques could be also applied to characterize the fiber-reinforced composites [1,8,13,37]. The damping capacity of a material is the fundamental property for designing and manufacturing structural components in dynamic applications.…”

Section: Testing Of Vibration Responsementioning

confidence: 99%

“…Compared to metallic structures, composite laminates offer some unique engineering properties while presenting interesting but challenging problems for analysts and designers. Authors [7][8][9][10] compared the vibration characteristics of steel and composite materials and pointed to relatively small damping in metal materials. This leads to significant amplitudes of vibration.…”

Section: Introductionmentioning

confidence: 99%

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Possibilities of the Additional Damping of Unidirectional Fiber Composites by Implementation of Viscoelastic Neoprene and Rubber Layers

Kulhavý

Petrů

Martina

2017

Shock and Vibration

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The aim of the presented work is to assess modal, transmission, and damping characteristics of layered carbon plates. The base is to carry experimental analysis verified by FEM model, which evaluates the vibration transfer of tested composites and describes possibilities of additional damping by implementation of viscoelastic layers. Preimpregnated carbon fibers known as prepreg were used for creation of the samples composed of four (2 constant and 2 variable) layers. The task was to assess impact of changing the fiber orientation on the transfer function and individual modal characteristics. As another option, testing of some additional damping materials was included. Neoprene and thin rubber coat were added as an outside damping element when the neoprene ply was inserted also among the layers. Expected dependence of the plies orientation onto the shape of the transfer function and even swapping of some of MOD characters (bending, torsion, and their combinations) have been found. The use of the additional damping materials is also possible but the right combination of the individual plies layout and stacking sequence is the most significant part. The results had been statistically analyzed and showed that the created layered shell FE models could be used to describe the behavior.

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Section: Introductionsupporting

confidence: 49%

Section: Testing Of Vibration Responsementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Possibilities of the Additional Damping of Unidirectional Fiber Composites by Implementation of Viscoelastic Neoprene and Rubber Layers

Kulhavý

Petrů

Martina

2017

Shock and Vibration

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“…It should also be noted that the physical properties of the matrix can also be affected by the change in several environmental factors such as temperature or humidity [8] that can result in the further decrement of interlaminar properties. There are several technologies that have been developed to enhance the interlaminar shear strength of polymer composites, such as physical blending, the placement of special thin films [9][10][11] and the incorporation of carbon nanotubes (CNTs), alumina or silica particles between laminate layers [12][13][14]. However, these techniques often modify the geometry and increase the weight of laminates.…”

mentioning

confidence: 99%

The effect of needleless electrospun nanofibrous interleaves on mechanical properties of carbon fabrics/epoxy laminates

Molnár¹,

Ko²,

Mészáros³

2014

Express Polym. Lett.

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The relatively easy production of polymer nanofibers by electrospinning has been the subject of many application-oriented investigations over the past few years. Most of these studies address the possibility of using such nanofibers in filtering, biomedical, sensor and clothing applications [1][2][3][4]. Because of their high surface-area-to-volume ratio, the nanofibrous materials could also be efficient reinforcing materials in polymer matrix composites. In these systems, the nanofibers can even act as the primary reinforcement (the nanofibers are the only reinforcing materials) as well as co-reinforcement (in addition to microfibers) [5]. From a mechanical properties point of view, the main problem associated with common fiber-reinforced polymer composite laminates is their weak interlaminar properties. Due to a geometry that is not absolutely planar, much free space occurs between layers of the reinforcing structures, which are filled up by the matrix material during impregnation. Thus, between the layers, the properties are determined mainly by the matrix and voids. The loads induced by shear-or out-of-plane stresses must be borne by this relatively weak matrix, 62The effect of needleless electrospun nanofibrous interleaves on mechanical properties of carbon fabrics/epoxy laminates Abstract. The effect of polyacrylonitrile nanofibrous interlaminar layers on the impact properties of unidirectional and woven carbon fabric (CF)-reinforced epoxy (EP) matrix composites was investigated. The nanofibers were produced directly on the surface of carbon fabrics by a needleless electrospinning method, and composites were then prepared by vacuum-assisted impregnation. Interlaminar shear stress tests, three-point bending, Charpy-impact and instrumented falling weight tests were carried out. The fracture surfaces were analyzed by scanning electron microscopy. Due to the nano-sized reinforcements, the interlaminar shear strength of the woven and unidirectional fiber-reinforced composites was enhanced by 7 and 11%, respectively. In the case of the falling weight impact tests carried out on woven reinforced composites, the nanofibers increased the absorbed energy to maximum force by 64% compared to that measured for the neat composite. The Charpy impact tests indicated that the nanofiber interleaves also led to a significant increase in the initiation and total break energies. Based on the results, it can be concluded that the presence of nanofibers can effectively increase the impact properties of composites without compromising their in-plane properties because the thickness of the composites was not altered by the presence of interleaves. The improvement of the impact properties can be explained by the good load distribution behavior of the nanofibers.

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“…This enabled a wide-range of engineering applications ranging from aerospace to marine, civil engineering to transport, sporting goods to automotive industry, etc. [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Effects of fibre orientation and content on the mechanical, dynamic mechanical and thermal expansion properties of multi-layered glass/carbon fibre-reinforced polymer composites

Motoc

Bou

Balart

2014

Journal of Composite Materials

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Damping properties of thermoplastic-elastomer interleaved carbon fiber-reinforced epoxy composites

Cited by 136 publications

References 4 publications

Possibilities of the Additional Damping of Unidirectional Fiber Composites by Implementation of Viscoelastic Neoprene and Rubber Layers

Possibilities of the Additional Damping of Unidirectional Fiber Composites by Implementation of Viscoelastic Neoprene and Rubber Layers

The effect of needleless electrospun nanofibrous interleaves on mechanical properties of carbon fabrics/epoxy laminates

Effects of fibre orientation and content on the mechanical, dynamic mechanical and thermal expansion properties of multi-layered glass/carbon fibre-reinforced polymer composites

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