Failure analysis of rubber composites under dynamic impact loading by logistic regression

Andrejiová, Miriam; Grinčová, Anna; Marasová, Daniela

doi:10.1016/j.engfailanal.2017.11.019

Cited by 21 publications

(11 citation statements)

References 12 publications

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“…Wroclaw University of Science and Technology, [4,5] and in Košice, [18,20]) conduct intensive studies into belt puncture resistance. The investigations include the in uence of the energy and shape of material lumps on the type of damage to the belt and its core [1]. These are also classi ed [2,33,38] with the purpose to increase belt puncture resistance by modifying the belt support [21,26], the belt design [4,19,39], the composition of the rubber mixture [1] or the introduction of breakers [ ].…”

Section: Methods For Steel Cord Defect Detection In Conveyor Belts By mentioning

confidence: 99%

“…The investigations include the in uence of the energy and shape of material lumps on the type of damage to the belt and its core [1]. These are also classi ed [2,33,38] with the purpose to increase belt puncture resistance by modifying the belt support [21,26], the belt design [4,19,39], the composition of the rubber mixture [1] or the introduction of breakers [ ]. The magnetic system [3] or other tools for evaluating the effects of punctures [17] allowed a non-invasive inspection of cores and belts subjected to punctures.…”

Section: Methods For Steel Cord Defect Detection In Conveyor Belts By mentioning

confidence: 99%

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Identification of damage development in the core of steel cord belts with the diagnostic system

Błażej

Jurdziak

Kirjanów-Błażej

et al. 2021

Preprint

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Belt conveyors are used for transporting bulk materials over distances. The core of the belt, by transferring the longitudinal stresses and ensuring proper frictional coupling of the belt, enables belt movement and transportation of materials on its surface. As the belt cover and edges are used, the belt becomes abraded, and the core is subject to fatigue. The result is the development of cracks in rubber covers across the belt, which leads to the development of damage not only along the cables (the natural direction of water migration and corrosion) but also in the direction transverse to the belt axis. Conducting a series of scans of the St-type belt operating in one of the underground copper ore mines in Poland allowed identifying the number of failures as well as their size and changes over time. These data were in turn used to determine the measures defining the condition of the belt such as the density of defects (the number of defects per 1 m of the belt), the density of the area of damage (the area of damage per 1 m of the belt) and the change in the average area of a single defect over time. By determining the regression of these measures in time and the rate of damage development in both directions (along the axis of the belt and across the belt), it was possible to forecast future states of the belt, as well as to evaluate the costs of different belt replacement strategies and the economic rationalization of the decision to replace them. This research has become possible owing to the development of the DiagBelt system for two-dimensional imaging of the damage to the core of steel-cord belts with resolution sufficiently high to allow tracking the development of single core defects.

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Section: Methods For Steel Cord Defect Detection In Conveyor Belts By mentioning

confidence: 99%

Section: Methods For Steel Cord Defect Detection In Conveyor Belts By mentioning

confidence: 99%

Identification of damage development in the core of steel cord belts with the diagnostic system

Błażej

Jurdziak

Kirjanów-Błażej

et al. 2021

Preprint

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“…The manufacture of textile fabric requires the use of an apparatus called a loom or weaving machine. This mechanical device weaves the fabric by interlacing a series of parallel yarns in the longitudinal (or warp) direction with a series of parallel yarns in the transverse (or weft/filling) direction [13]. Warp yarns are delivered to the loom in the form of a "sheet."…”

Section: Available Technologymentioning

confidence: 99%

“…Fabric strengths have size ranged from 63 N/mm up to and including 630 N/mm are generally available. The standardized strength sequence is: 63, 80, 100, 125, 160, 200, 250, 315, 400, 500 and 630 N/mm [13]. The textile fabric carcass has properties of textile yarns.…”

Section: Available Technologymentioning

confidence: 99%

Classification of Impact Damage on A Rubber-Textile Conveyor Belt: A Review

Alviari

Anggamawarti

Sanjiwani³

et al. 2020

MECHTA

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A conveyor belt is one type of goods transportation in technological processes, particularly in the mining industry. The belt is the important material and principal part of the conveyor belt. The overall quality of the conveyor belt as its service life and impact loads are very important factors. Therefore, the purpose of this paper is to classify the types of impact damage that may occur in rubber-textile conveyor belts. In many works, many types of conveyor belts are tested at various levels and the type of impacting material. The level of damage occurred is investigated by using probability theory. Particularly, the evaluation of experimental test data and predictive modeling is carried out using the Naïve Bayes classification.

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“…Luo et al [10] improved the classic hyperelastic models to predict complete loading-unloading response using energy dissipation approach, and proposed NFR (Natural Frequency Region) approach to simulate a dynamic impact event instead of using the usual viscoelastic methodology. Andrejiova et al [11] focused on the damage of conveyor belts rubber, and carried out the analysis of the rubber samples damage significance using the logistic regression method in their study.…”

Section: Introductionmentioning

confidence: 99%

Safety Assessment of Aircraft Fuel Tank Access Cover under the Impact Load by Tire Fragments

Yao

Yue

Geng

et al. 2019

Chin. J. Mech. Eng.

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According to relevant airworthiness standards, the aircraft fuel tank access cover must withstand the impact by tire fragments, and minimize the penetration and deformation, which is critical for flight safety. To assess the safety of an aircraft fuel tank access cover subjected to tire fragments, a study of dynamic response was presented in this paper using the Finite element (FE) software ANSYS/LS-DYNA. To obtain the reliable mechanical characteristics of tire tread rubber, a series of material tests have been conducted. Then the proposed rubber material model is validated by comparing the numerical simulations with the experimental results of aluminium alloy plate impact. The simulation results indicate that the rubber fragment and alloy plate will undergo the largest deformation when impact angle is equal to 90°. Finally, the proposed FE model and modelling approaches are extended to the numerical simulation of a full-scale aircraft fuel tank access cover impact. The numerical simulations are carried out with impact velocity of 71.1 m/s and impact angle of 40.5°. The simulation results indicate that the aluminium alloy by precision casting is more likely to rupture, and the middle region of the access cover is vulnerable to fragment impact. This research proposes a reliable rubber model applying to various strain rates. Considering the influence of impact regions, the dynamic response and various failure patterns of fuel tank access cover are acquired. The findings of this paper can be used to improve the future aircraft safety design. which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Failure analysis of rubber composites under dynamic impact loading by logistic regression

Cited by 21 publications

References 12 publications

Identification of damage development in the core of steel cord belts with the diagnostic system

Identification of damage development in the core of steel cord belts with the diagnostic system

Classification of Impact Damage on A Rubber-Textile Conveyor Belt: A Review

Safety Assessment of Aircraft Fuel Tank Access Cover under the Impact Load by Tire Fragments

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