All articles
116 articles
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A Detailed Step-By-Step Procedure on Finding the Square Root of a 4 × 4 Positive Definite Symmetric Matrix for Engineering Applications
Abstract: The main focus of this study is to present a detailed step by step procedure to determine the square root of a symmetric positive definite non-singular matrix. The procedure involved four steps which are Gram–Schmidt orthogonalization, Schur form, U matrix, and square root of matrix, which are discussed in this study. Few examples are solved to learn and practice. Necessary checks were performed, and the results show that the square …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 4, Issue 1, 2018 · pp. 36–40 Read article
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Numerical Study on the Effect of Ball Baffles in Reducing Sloshing Loads in Ship Tanks
Abstract: Sloshing is the free surface motion of a liquid in a partially filled container under periodic motion. Liquid sloshing will result in dynamic pressure on the walls of the container causing large deformations to the tank as well as the supporting structures and carrier. This dynamic pressure on the tank walls due to slosh waves are conventionally mitigated in the tanks of very large crude oil carrier (VLCC) ships by …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 4, Issue 1, 2018 · pp. 15–27 Read article
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Design Optimization of Water Injection Module of Topside Facility of an FPSO
Abstract: Analysis, design and construction of offshores structures are the most challenging tasks in the field of ocean engineering. This work presents a method of designing topside facility of an FPSO by considering all possible environmental loading along with the loading during transportation, lifting and placing. Of all the loads wave loading is the most prominent which has been estimated using a 3D computational fluid dynamics code based on finite volume …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 4, Issue 1, 2018 · pp. 1–14 Read article
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A Study on Method and Modelling of Structural Analysis and Finite Elements: A Review
Abstract: The finite element method (FEM) or finite element analysis (FEA), is a numerical method usually employed for solving engineering (structural mechanics) and mathematical physics problems. Generally, the analytical solution of these problems require the solution to boundary value problems for partial differential equations. Specimens are usually tested and analysed using finite element method (FEM) for investigating the behaviour of square concrete columns confined by fibre reinforced polymer (FRP) and sheets.
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 3, Issue 2, 2017 · pp. 29–33 Read article
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Study of Analysis, Design and Performance of Fin
Abstract: This paper discusses the use of extended surface heat transfer in heat exchangers. The size and cost of an exchanger is dependent upon the heat duty, the allowable pressure drop, and the geometry of the heat transfer area. The dominance of this resistance is often broken by the use of extended surfaces (fins), which will result in a lower area and hence smaller exchanger. This paper will consider which, if …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 3, Issue 2, 2017 · pp. 23–28 Read article
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To Study of the Parameters of Earthquake Seismic Vulnerability and Seismic Hazards
Abstract: This paper defines seismic risk, vulnerability assessment of building is from all three variables, the one that assumes great importance not only because of its obvious physical consequences in the occurrence of a seismic event, but because it is the potential aspect, for which the engineering research can intervene, improve and even control seismic behavior of existing buildings, reducing the level of vulnerability and consequently the level of physical damage, …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 3, Issue 2, 2017 · pp. 18–22 Read article
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Study of the Surface Roughness (SR) Using Main Effect Plots Using Glycerin and EDM Oil
Abstract: SR plays an important role in determining how an object will interact with its environment in real life scenario. In this paper, aqueous solution of glycerin with 80% glycerin and 20% de-ionized water and kerosene oil have been used as dielectric for this study. Only those parameters which have highest percentage of contribution to SR are generally taken into account. This paper studies SR versus current, duty factor, ton for …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 3, Issue 2, 2017 · pp. 15–17 Read article
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Analysis of Fixed Offshore Platform Deck using Acceleration - Deflection Resonance Method
Abstract: Steel plate is commonly used as the flooring plate for fixed offshore platform Deck and there are several existing methods for analyzing the steel plate. In this research acceleration-displacement resonance method is developed for analyzing plate. The plate is first analyzed considering arbitrary uniformly distributed and point load with an all-round simply support. The method involves transformation of bi-harmonic equation into acceleration- deflection ratio ( R_xx). From the study, the …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 4, Issue 1, 2018 · pp. 28–35 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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Experimental verification of strength of glass fiber reinforced polymer matrix composites
Abstract: An experimental investigation has been carried out to develop a new PMC (Polymer Matrix Composite) using commercially available Epoxy and Polyurethane resin systems. These resin systems would be reinforced with glass fibers, filler materials and aluminium foils. The laminates have been prepared by using the hand lay-up technique for eight layers and the mechanical tests such as tensile and compression test have been conducted for the PMC. This work has …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 3, Issue 1, 2017 · pp. 43–51 Read article
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Finite Element Analysis(FEA) of a sandwich panel with hexagonal honeycomb core under tensile load
Abstract: Composite sandwich panels have been increasingly used in aerospace industry for various applications such as floor panels, comportment partitions, bulkheads, and even the skin and wings. It is important to design light weight structure for aircraft operations. The sandwich panel serves this requirement. The sandwich composites are multilayered materials made by bonding stiff, high strength skin facings to low density core material. In the present research work composites sandwich panel …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 3, Issue 1, 2017 · pp. 30–42 Read article
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Wheelchair Design Analysis by Using Ethnographic Research
Abstract: This work focuses on benefits of introducing ethnographic research into specifically design engineering field. Ethnographic research is an emerging branch of research which uses scientific techniques like anthropology and sociology. Ethnographic research is done through participant observations and field work [5]. In ethnographic study, minds of people or groups of people are studied. Such method of research can be very useful in analyzing the reliability of a design of engineering …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 3, Issue 1, 2017 · pp. 21–29 Read article
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Numerical Study of Vibration Stress and Deformation of Rotating Fan Blade of a Gas Turbine
Abstract: The vibration stress caused by resonance is the main cause of failure in aircraft engine blades. The study is aimed at investigating the vibration stress of a single-stage fan blade influenced by the interaction of aerodynamic and structural behavior at multiple critical speeds. A three-dimensional finite element model of the blade was developed for the simulation of vibration stress and its subsequent effects. The blade was verified by modal test. …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 3, Issue 1, 2017 · pp. 7–20 Read article
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Slop-Moment Matrix Method and General Deflection Equation
Abstract: In this paper, Slop-Moment matrix method and general deflection equation will be presented, Slop-Moment matrix method is a method for structural analysis by which the support moments can be found for structural elements (1-d) like beams, one-way slabs, bridge girder,…etc. it enables the engineers to conduct structural analysis with very wide options, There are no limitations on number of spans, number and type of loads, end support conditions, section property …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 3, Issue 1, 2017 · pp. 1–6 Read article
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Modification of Compressed Air Technology in Vehicles: A Review
Abstract: Today’s world is concerned of saving the environment, pollution is the major point of harmful environment and it is the global issue. Major amount of air pollution is caused by the vehicles, factories, etc. Hence, today’s engineers focus on building an eco-friendly engine which can reduce the pollution caused by vehicles.
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 2, Issue 2, 2016 · pp. 67–73 Read article
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Research Insight: Earthquake Resistant Structures in Construction Sector
Abstract: It is normally unpredictable to reckon uncertain seismic activity, but hopefully advanced Earthquake warning systems have been developed that can provide regional notification of an earthquake in progress, that provide timely alerts to the mass but before the ground surface has begun to move, potentially allowing people within the system's range to seek shelter before the earthquake's impact is felt. More to the plate is the attempt to create earthquake …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 2, Issue 1, 2016 · pp. 75–78 Read article
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A Brief Description on the Use of Honeycomb Structures in Aerospace Applications
Abstract: Following by the motto of manufacturing light-weighted vehicles with low strength to weight ratio, lower stiffness and density, engineering sectors namely, aviation, automobile designing, light weight construction are largely influenced by structural conjuration of a honeycomb. Inspired by the notion, many organizations are working out on improvised form of honeycomb structural panels. Since the adhesive property of hexagonal honeycomb structures is of major concern in aircraft component. The use of …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 2, Issue 1, 2016 · pp. 71–74 Read article
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Evaluation of Various Numerical Methods in Large Scale FE Simulation Codes for 3D Crack Propagation
Abstract: In this paper, four different numerical methods implemented in the large scale simulation code LS-DYNA are evaluated to determine their abilities and limitations in fracture problems especially 3-d crack propagation problems. Similar formulations are implemented in the code ABAQUS as well. These methods are: Finite Element Method (FEM), Discrete Element Method (DEM), Element Free Galerkin (EFG) method and Extended Finite Element Method (XFEM). Their methodologies are briefly described and several …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 2, Issue 2, 2016 · pp. 44–66 Read article
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Ship Collision analysis of tanker using finite element method at high and low impact velocities
Abstract: The aim of this paper presents a study of ships collision to improve crashworthiness of double side tanker ships and minimize accidental oil spills in the event of collision. Structural design of ships against collision requires prediction of the extent of damage to ship structures subjected to impact. Ship design against conventional loads such as shearing, bending and local buckling and the accidental loads requires applying different stiffening systems for …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 2, Issue 2, 2016 · pp. 33–43 Read article
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Rolling Element Bearing Diagnosis Using Machinery Fault Simulator
Abstract: The paper presents the diagnosis strategy for the rolling element bearing system used in machinery fault simulator (MFS). The concept is generic and it is applicable for most of the system involving bearing sub-system. The MFS details and its various maintenance strategies described. The monitoring of the rolling element bearing (REB), done with the accelerometer sensors. Acquisition of data from the sensor analog voltage to the CPU in digital format …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 2, Issue 1, 2016 · pp. 01–22 Read article