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219 articles for “failure”
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Evaluating the Reciprocating Compressor Components Failure and Downtime
Abstract: The investigation on the evaluation of reciprocating compressor component failures using the reliability approach was examined for a period of five (5) years. The components monitored were valves, seal, pistons, bearing, O-rings, and cylinders and the numbers of failure per year were obtained as 10, 8, 2, ,7, 9 and 4 for the first year, 6 6, 2, 5, 7 and 2 for the second year, 7, 6, 2, 3, …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 10, Issue 2, 2024 Read article
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Computation of Compressor Components Failure and Maintenance Characteristics
Abstract: The computation of the compressor components failure and maintenance characteristics as related to the major parts are described in this research. The research projected the root cause of the compressor components failure as well as projected the necessary measure to reduce such occurrence in the gas compressor operation. The parameters of the Mean time between failure, failure rate, downtime maintenance, reliability, unreliability, and availability were commutated respect to the number …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 10, Issue 2, 2024 Read article
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Investigating Pipeline Integrity Failure as a Result of Corrosion
Abstract: The study reviewed different failure factors and data of onshore crude oil pipelines covering corrosion, external interference, structural defects, and operators’ errors. The focus of this research is to identify factors affecting failure of crude oil pipelines in Nigeria due to corrosion with analysis of failure data from 2008–2017. Corrosion (internal and external) over total length of available pipelines for each year was analysed to determine the current mean time …
Published in International Journal of Composite Materials and Matrices · Vol. 7, Issue 2, 2021 · pp. 1–8 Read article
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A Study to Assess the Effectiveness of Nurse Assisted Milieu Activities on Activity Tolerance among Patients with Congestive Cardiac Failure at Sri Ramachandra Medical Centre
Abstract: The present study was to assess the effectiveness of nurse assisted milieu activities on activity tolerance among the patients with congestive cardiac failure at Sri Ramachandra Medical Centre with the following objectives as under: 1. Assess the activity tolerance of patients with congestive cardiac failure. 2. Assess the effectiveness of nurse assisted milieu activities on activity tolerance among patients with congestive cardiac failure. 3. Associate the background variables of patients …
Published in International Journal of Cardiovascular Nursing · Vol. 4, Issue 2, 2018 · pp. 14–23 Read article
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Home Care Management of Arterio-venous Fistula Among Chronic Renal Failure Patients Undergoing for Hemodialysis- A Quasi-experimental Research Study
Abstract: Introduction: Chronic Renal Failure refers to a gradual and irreversible decline in renal function, leading to the body's inability to sustain metabolic, fluid, and electrolyte balance. This condition results in uremia, necessitating the reliance on hemodialysis to maintain internal equilibrium and prevent uremia. In the initial phases of renal impairment, symptoms may be alleviated through hemodialysis, monitoring fluid intake, dietary regulation, and medication use. However, as renal function deteriorates, these …
Published in International Journal of Medical Surgical Nursing · Vol. 6, Issue 2, 2023 · pp. 6–12 Read article
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Nonlinear Finite Element Approaches for Structural Failure Prediction: A Comparative Assessment with Case Studies
Abstract: Abstract Nonlinear finite element methods (NLFEM) have become indispensable for predicting structural failure in complex engineering systems, particularly where linear models fail to capture critical behaviors, such as large deformations, crack propagation, and post-buckling responses. This study investigates and compares several state-of-the-art NLFEM techniques – namely cohesive zone modeling (CZM), extended finite element method (XFEM), and phase-field fracture modelling – in the context of structural failure prediction. Three representative case …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 11, Issue 1, 2025 · pp. 1–5 Read article
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Comparison of Liquefied Natural Gas Plant Unit Failure
Abstract: The comparison of some liquefied natural gas plant unit failure was investigated and the unit considered in terms of identification of the component failures. The units are Reboiler, Stripper, Cooling, Compressor, Acid Dehydration, Heat Transfer, Expander and Liquefaction units. The components of interest were monitored in terms of their performance as well as the failure rate of heat transfer unit > cooling unit > acid dehydration unit > stripper unit …
Published in International Journal of Chemical Separation Technology · Vol. 7, Issue 2, 2021 · pp. 11–22 Read article
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Effect of Pressure on Insulation Failure and Pipe Leakage in Natural Gas Transmission Pipeline Using Simulation Software
Abstract: Effect on insulation failure and pipeline leakage in natural gas transmission line using simulation software known as EXTENDSIM9 SUIT was applied to monitor, predict and simulate the variation in pressure in a pipeline system. The computational fluid dynamics parameters for the flow of compressible gas in a pipeline includes density and pressure which changes along the transmission line due to frictional resistance, and may lead to fogging/ hydrate formation or …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 5, Issue 1, 2019 · pp. 24–37 Read article
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Mechanical and Thermal Factors Contributing to Turbine Engine Failures
Abstract: Turbine engines are essential parts of aircraft and power plants because they operate in harsh mechanical and temperature environments, which increases the likelihood of their failure. This paper summarizes what is now known about the complex interactions between thermal loads and mechanical stresses in turbine engine breakdowns. Thermal aspects, such as thermal cycling, heat transfer methods, and cooling systems, are examined for their contributions to deterioration and structural integrity, while …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 10, Issue 1, 2024 · pp. 7–12 Read article
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Top Ten Challenges—Heart Failure
Abstract: The definition of chronic heart failure (CHF) remains contentious, but has been described as left ventricular dysfunction with symptoms. Heart failure is not a diagnosis, but a complex of symptoms with evidence of ventricular disease and a specific etiology should be established. CHF requires life-long treatment and need a multidisciplinary approach. A structured system of care improves outcomes and quality of life. The management of CHF itself has improved in …
Published in International Journal of Cardiovascular Nursing · Vol. 6, Issue 1, 2020 · pp. 22–28 Read article
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Effectiveness of Comprehensive Intervention on Sepsis-Related Organ Failure Assessment (SOFA) Upon the Knowledge and Practice Among Nurses
Abstract: Background: Sepsis is the body's overpowering and potentially fatal response to infection, which can result in tissue damage, organ failure, and death. To put it another way, it is the body's overactive and toxic response to infection. The immune system typically works to fight pathogens to prevent infection (bacteria, viruses, fungi, or parasites). As an infection arises, the immune system will attempt to combat it with the aid of medication …
Published in International Journal of Nursing Critical Care · Vol. 9, Issue 1, 2023 · pp. 34–43 Read article
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Fracture and Failure of Recycled Aggregate Concrete (RAC) – A Review
Abstract: In the world, many countries put into effect the renewal plans and/or the laws and/or the regulations for recent engineering structures which have reached their lifetime, are risk prone and have been built lacking quality engineering, or without considering urban planning. Hence, many structures are demolished and this situation increases the amount of construction and demolition waste (C & DW). Also, resource consumptions are rapidly increased due to excessive constructional …
Published in International Journal of Concrete Technology · Vol. 1, Issue 1, 2015 · pp. 31–48 Read article
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A Case Study of the Krishna Bhir Slope Failure Disaster: Past and Present Scenario at a Glance
Abstract: The massive landslide disaster of Krishna bhir has been infamous for its dreadful consequences. This huge landslide in the region led to serious socio-economic and environmental disorders in the vicinity of the region, whose negative impacts were reflected soon in the capital city. In addition to the feeble geology, the blasting and drilling activities, rampant deforestation, heavy monsoon rain and the poor drainage are the engenders for weakening the natural …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 2, Issue 1, 2016 · pp. 21–30 Read article
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Evaluation with Wave Propagation Launch Vehicles besides Non-Intrusive Transmission Lines Failure Detection.
Abstract: The whole paper presents a principle of non-intrusive real-time network failure tracking utilizing wireless sensor networks. The core components of the detector are known as energy harvesters, waveforms and algorithms, circuits and components, and surface wave launchers. In this we have discussed a compact energy harvesting system that is capable of non-intrusively extracting power from a power cable. In terms of waveforms and algorithms, we suggest the usage of TDR …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 6, Issue 2, 2020 · pp. 12–21 Read article
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Failure Prediction of Composite Lamina
Abstract: Composite materials are preferable in many applications of engineering than their metallic equivalent. These materials provide desirable characteristics and required properties for specific design and testing. In orthotropic fiber composites, the fiber orientation dictates the material properties, because the properties can be built into the laminate during fabrication. In this study, a composite laminate is tested with a specific configuration whether it would fail or survive under specific load. If …
Published in International Journal of Composite Materials and Matrices · Vol. 5, Issue 2, 2019 · pp. 27–36 Read article
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Experimental Investigation on Mechanical Failure of Bio-Implant Material for Orthopedic Applications
Abstract: Loss of limbs or destruction of bones in accidents and battle requires partial or complete replacement of the damaged body parts and bones in particular for complete recovery. The materials which can be used as artificial bio-implants for the replacement must be bio-Integrable as well as biocompatible with the host human body and possess very high mechanical properties to withstand high wear and stresses involved in various joints. Existing research …
Published in International Journal of Mechanics and Design · Vol. 6, Issue 1, 2020 · pp. 21–28 Read article
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3D Stress State Dependent Failure Model for Fracture Simulations
Abstract: The state of stress is defined by triaxiality (hydrostatic pressure) and the lode angle parameter (deviatoric stress third invariant). The stress state not only varies with different kinds of loading but also with the location of the stress concentration, geometry of specimen and deformation. The LS-DYNA implementation of a strain-based, stress state dependent failure criterion for a ductile material is investigated through simulations of standard experiments in this paper. A …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 2, Issue 1, 2016 · pp. 44–65 Read article
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Analytical Computation and Finite Element Analysis of Failure Criterion of a Composite Hollow Driveshaft Under Torsion
Abstract: ABSTRACT Drive shafts for power transmission are used in many applications, including machine tool, cooling towers, pumping sets, aerospace, and automobiles. In the metallic shaft design, the size of the shaft’s cross-section can be determined by the value of torque and the allowable shear stress of the material. There has been extensive work on the design of hollow composite drive shaft as per the literature survey. Many have focused on …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 3, Issue 2, 2017 · pp. 1–14 Read article
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A New Model for Prediction of Wellbore Stability Using the Three Dimensional Hoek–Brown Failure Criterion
Abstract: Wellbore stability is one of the crucial issues in oil and gas industries. The issues related to instability of wells, impose significant unwanted costs on drilling operation.The objective of this paper is to present the 3D-wellbore stability prediction models for vertical wellbores. The three dimensional Hoek–Brown strength criterion developed by Zhang and Zhu conjunction with linear poroelastic constitutive model is utilized to develop the models. This models leads to easily …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 3, Issue 2, 2017 · pp. 10–15 Read article
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Failure Analysis of Engine Crankshaft by Finite Element Method Analysis Approach- A Review
Abstract: The crankshaft, a mechanical part with intricate geometry that converts reciprocating motion into rotational motion, is essential to the operation of the engine. The connecting rod serves as the link between the crankshaft and the piston. The primary bearings, which are situated in the crankcase, support the crankshaft journals. The most crucial phase for an efficient engine design and an increase in engine performance in an internal combustion engine is …
Published in International Journal of Manufacturing and Materials Processing · Vol. 9, Issue 1, 2023 · pp. 12–21 Read article