Failure Progress of 3D Reinforced GFRP Laminate during Static Bending, Evaluated by Means of Acoustic Emission and Vibrations Analysis

Kozioł, M.; Figlus, Tomasz

doi:10.3390/ma8125490

Cited by 9 publications

(5 citation statements)

References 59 publications

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“…Within this time, a thin layer of mixture was deposited on a glass substrate and placed in a Bench-top Type Temperature and Humidity Chamber SH-242 (Espec, Osaka, Japan) for 24 h, to be cured at a temperature of 283 K and relative humidity (RH) = 5%. These are good conditions (heat flow, temperature) for a resin curing process (not exceeding 350 K) [23,24]. This is important for the homogeneity and good quality of the produced composite [25,26].…”

Section: Methodsmentioning

confidence: 99%

An Ultrasonic Fabrication Method for Epoxy Resin/SbSI Nanowire Composites, and their Application in Nanosensors and Nanogenerators

Szperlich

Toroń

2019

Polymers

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In this manuscript, a new fabrication technology for epoxy resin/antimony sulpho-iodide (SbSI) nanowire composites is presented. SbSI nanowires, with lateral dimensions of 10 nm to 100 nm and lengths up to several micrometres, have been synthesised using ultrasound irradiation. The prepared SbSI nanowires have been bound with epoxy resin in a mass ratio of 1:4, and then ultrasound irradiation has been used again for homogenization of the mixture. The fabricated epoxy resin/SbSI nanowire composites, due to the piezoelectric properties of SbSI (electromechanical coefficient k33 = 0.9, and piezoelectric coefficient dV = 0.9 × 10−9 C/N) may be used as an active layer in nanosensors and nanogenerators. The preliminary investigations of epoxy resin/SbSI nanowire composites for sound excitation (frequency f = 175 Hz; L = 90 dB), vibrations (f = 24 Hz; A = 1 mm; F = 0.73 N), and shock wave (p = 6 bar), allowed for the determination of the composite’s open circuit voltage: 0.0153 VRMS, 0.166 VRMS, and 4.51 Vp-p, respectively. Maximum power output densities of 0.45 nW/cm3 and 860 nW/cm3 have been achieved for excitation by sound and vibration, respectively, for a 0.6 mm thick layer of composite.

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Section: Methodsmentioning

confidence: 99%

An Ultrasonic Fabrication Method for Epoxy Resin/SbSI Nanowire Composites, and their Application in Nanosensors and Nanogenerators

Szperlich

Toroń

2019

Polymers

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“…As specified in [5] and [6] the decrease in speed over time is defined by the braking deceleration. It is a parameter that describes the "greatness" of braking and is useful for comparing different car types under different conditions [7][8][9][10]. It cannot be said about the braking time or stopping distance, which vary significantly due to a initial speed changes from which the vehicle decelerates [11].…”

Section: Introductionmentioning

confidence: 99%

The influence of the cargo weight and its position on the braking characteristics of light commercial vehicles

2019

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AbstractThe influence of the cargo weight loaded on the vehicle and the total gross mass of the vehicle on the braking characteristics is often researched from the road safety reason. However, there is not enough knowledge about the influence of weight and load distribution on the loading area of small trucks or vans on their braking characteristics. This article presents the results of measurements of braking decelerations of the van of N1 category and the braking characteristics of a vehicle loaded with different cargo mass with different cargo locations on the loading area. The impact of the longitudinal cargo position on the loading area on the load of the individual axles and thus on the braking deceleration of the vehicle was investigated. The influence of the height of the center of gravity on the dynamic axle load during braking was also determined. Method of direct vehicle deceleration measurement was used by a decelerometer. There were calculated cargo weight and cargo position influences on the dynamic axle load during braking according to the vehicle deceleration.

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“…The main task of a lorry frame is its carrying ability. The lorry frame design considers among others the power drive-train type [1][2][3]13,16,19,34]. Therefore, the frame design has to ensure sufficient rigidity and be as light as possible [6,24,27,33].…”

Section: The Lorry Frame Designmentioning

confidence: 99%

Strength analysis of an off-road lorry frame

Dižo¹,

Blatnický²,

Dróździel³

et al. 2021

SJSUT.ST

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The lorry frame is the main carrying part of a lorry, composed of several components. These components are connected by joints into one structural unit and it forms the lorry chassis. The contribution of this article is focused on the strength analyses of a backbone frame, which is used on an off-road lorry chassis. Strength analyses are carried out utilising the finite element method. This article presents a created three-dimensional model of the frame and definition of boundary conditions (loads, the definition of degrees of freedom) needed for simulation computations. Results of the numerical calculations are the main parts of this article. Attention is mainly centred on the distribution of stresses of the frame under defined loads and its deformations.

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Failure Progress of 3D Reinforced GFRP Laminate during Static Bending, Evaluated by Means of Acoustic Emission and Vibrations Analysis

Cited by 9 publications

References 59 publications

An Ultrasonic Fabrication Method for Epoxy Resin/SbSI Nanowire Composites, and their Application in Nanosensors and Nanogenerators

An Ultrasonic Fabrication Method for Epoxy Resin/SbSI Nanowire Composites, and their Application in Nanosensors and Nanogenerators

The influence of the cargo weight and its position on the braking characteristics of light commercial vehicles

Strength analysis of an off-road lorry frame

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