Application of FMEA in the Quality Estimation of Metal Matrix Composite Castings Produced by Squeeze Infiltration

Gawdzińska, K.; Chybowski, Leszek; Przetakiewicz, W.; Laskowski, Rafał

doi:10.1515/amm-2017-0320

Cited by 21 publications

(15 citation statements)

References 5 publications

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“…These were used to provide evidence for the use of safety cages to protect operators during an uncontrolled tyre blast [19]. The analysis results may be used to guide the selection of strong and relatively light replacement materials for safety cages [20][21][22][23][24].…”

Section: Methodsmentioning

confidence: 99%

A Numerical Analysis of the Working Machine Tyre Inflation Process to Ensure Operator Safety

2019

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Tyre replacement and inflation is a common occurrence in the transportation, construction and mining industries, but in commercial, off-highway, or earth-moving vehicles, the rupture of an inflated tyre can cause serious or even fatal injuries to an operator. This paper highlights the consequences of a burst tyre based on a real case. The presented analytical approach is based upon an assumed adiabatic process and continuum mechanics using Bernoulli’s flow equations. A numerical analysis of a tyre burst was performed using multibody and finite element methods to reconstruct the fatal accident. It was shown that tyre-blast injuries may lead to lethal head trauma and bodily injuries, since the potential energy stored in large, over-pressured tyres can exceed 1 MJ.

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Section: Methodsmentioning

confidence: 99%

A Numerical Analysis of the Working Machine Tyre Inflation Process to Ensure Operator Safety

2019

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“…The dynamic characteristics of steel were presented in a previous article [40]. The structural materials of cages, mostly metals, display a variety of behaviors under external forces [37,41,42]. Depending on current and past forces, these materials may experience either plastic or elastic deformation, and they may also be subject to creep, have a strengthening effect, and exhibit elastic or plastic viscosity [37,[43][44][45].…”

Section: Mathematical Model Of the Materials Propertiesmentioning

confidence: 99%

Simulation-Based Methodology for Determining the Dynamic Strength of Tire Inflation Restraining Devices

2020

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The article suggests and supports a simulation-based methodology for determining whether the dynamic strength of tire inflation restraining devices for tire inflation meet quality requirements and ensure operator safety during a potential tire explosion. Dynamic strength tests using an NM-600 safety shield and NK-0728 safety cage during a 29.5 R25X tire explosion at a pressure of 10 bar were presented as an example application of this methodology. The shield was subjected to destructive tests involving the use of a 2200 kg impactor, dropping it so that the minimum kinetic energy reached 20 kJ at the time of impact. Analyzed devices were constructed of S355 steel in accordance with EN 10025. The Cowper–Symonds model of material for strain rate phenomena was used in the calculations. Simulations of a 20 kJ ring impact against the cage were performed. The equivalent stress distribution was determined, and displacement contour lines for the maximum dynamic deformation value and plastic deformation were calculated. The plastic displacement obtained in numerical tests was equal to the permanent deformation recorded in the experimental test. Further, the simulations showed that the examined cage met the assumed strength criteria. The conducted tests confirmed the usefulness of the proposed methodology for assessing the dynamic strength of safety cages and shields for tire inflation. The full-scale, physical cage testing is difficult to implement because it requires placing a ring impacting the cage wall. This is a major boundary for closed cages, as considered in this publication. Thus, simulation-based methods are becoming a principal tool for safety assessment of tire inflation restraining devices.

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“…These conditions are associated with switching certain system components on or off, depending on the demand for functions of these components in a given operational state [1][2][3]. There are different ways to model time-variant reliability structures, for example, using graphs, tables, reliability block diagrams, fault trees, and so forth [4][5][6][7]. Moreover, there are a number of calculation methods used in reliability engineering, for example, Bayesian methods [8][9][10][11], Monte Carlo [12][13][14][15], Markov processes [16][17][18], fuzzy logic [19][20][21][22], and so forth.…”

Section: Introductionmentioning

confidence: 99%

Importance Analysis of Components of a Multi-Operational-State Power System Using Fault Tree Models

Chybowski

2020

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This article describes a case study using a fault tree analysis for a multi-operational-state system (system with several operational states) model with many different technical solutions for the power system of a fishing vessel. We describe the essence of system dependability metamodeling. A vector of external events was used to construct a detailed metamodel, depending on the operational status being modeled. In a fault tree, individual external events modify the structure of a system. The analysis includes the following operational states: sea voyages of a vessel, hauling in and paying out nets, trawling, staying in a port, and heaving to. For each operational state and assumed system configurations, the importance of system components was determined by calculating the Vesely–Fussell measures. The most important components for each operational state of a system were determined, and the critical system components, that is, those that are important in every operational state and system configuration, were identified.

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Application of FMEA in the Quality Estimation of Metal Matrix Composite Castings Produced by Squeeze Infiltration

Cited by 21 publications

References 5 publications

A Numerical Analysis of the Working Machine Tyre Inflation Process to Ensure Operator Safety

A Numerical Analysis of the Working Machine Tyre Inflation Process to Ensure Operator Safety

Simulation-Based Methodology for Determining the Dynamic Strength of Tire Inflation Restraining Devices

Importance Analysis of Components of a Multi-Operational-State Power System Using Fault Tree Models

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