All articles
7057 articles
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
Investigation On Behavior Of Cold Formed Steel In Beam Column Connections
Abstract: Cold form steel structures are used for numerous purposes in construction industry. An attempt has been made in this study to check the behavior of beam column connections by using self-tapered screw in cold form steel section theoretical, experimentally and analytically. Finally, the experimental results are compared with analytical results. This study aims at the following objective by test performed on cold formed steel section to check the behavior connections. …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 2, Issue 1, 2016 · pp. 66–70 Read article
-
Finite Element Modelling and Structural 3d Static of the Mechanical Behavior of Dry Contacts Slipping Between the Disc and the Brake Pads
Abstract: The aim of this contribution is to present a study based on the determination of the structural deformations due to the contact of slipping between the disc and the pads. The results of contact described in this work relate to displacements, Von Mises stress and contact pressures of the pad at various moments of simulation. One precedes then the influence of some parameters on the computation results such as rotation …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 2, Issue 1, 2016 · pp. 23–43 Read article
-
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
-
Flutter study of a solar powered high-altitude long endurance UAV
Abstract: This paper presents an aero-elastic flutter analysis on a high altitude long endurance unmanned air vehicle. Numerical finite element analysis (FEA) based simulations for flutter have been carried using the commercial FEA package ANSYS. Analytical flutter analysis is performed to verify the FEA results. The analytic flutter analysis gives the divergence speed to be 32.7 m/sec. The numerical flutter analysis of the rudder shows the bending and torsional modes for …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 2, Issue 2, 2016 · pp. 01–09 Read article
-
Vibration Analysis of Sandwich Beams Using 3-Noded Beam Element
Abstract: One-dimensional 3-noded finite element model is developed in this paper for the vibrational analysis of composite sandwich beam for various boundary conditions, using the efficient layer wise zigzag theory. To come across the convergence necessities for the weak integral formulation, fifth power Hermite interpolation is utilized for the transverse displacement and quadratic interpolation is utilized for the axial displacement and shear rotation. Element every node has four degrees of freedom. …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 2, Issue 2, 2016 · pp. 10–18 Read article
-
Compressive Behaviour of Pristine and Impacted Composite Laminates: Numerical Simulations and Experimental Studies
Abstract: To predict the compressive strength, various failure criteria studied in this article include are Tsai-Wu, Hill, Hoffman, Maximum Stress and Quadratic. The quadratic failure criterion has been implemented using PATRAN Command Language (PCL). Is observed that quadratic failure criterion provides least failure indices, employed for conservative design. The compressive strength of the pristine and impacted laminate computed using analytical experiment, and finite element analysis (Numerical) commercial packages. Experimental program employing …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 2, Issue 2, 2016 · pp. 19–32 Read article
-
Fatigue Stress Analysis of Composite Material Leaf Spring
Abstract: The finite element (FE) modeling and analysis of a multi-leaf spring has been carried out. It includes two full-length leaves in which one is with eyed ends and seven graduated length leaves. Different types of material have been chosen like steel, aluminum, carbon epoxy and glass epoxy. The model of the leaf spring has been generated in Pro/e5.0 and imported in ANSYS-12 for FE analysis, which are the most popular …
Published in International Journal of Manufacturing and Materials Processing · Vol. 4, Issue 2, 2018 · pp. 30–33 Read article
-
Experimental Study and Analysis of Coefficient of Friction for Mild Steel Under Various Lubrication Conditions
Abstract: The coefficient of friction plays decisive role in the metal-forming processes. This study focuses on determination of the coefficient of friction between work piece and lubricants using ring compression test by experiments physical modeling and finite element (FE) simulation. A series of ring compression tests were carried out to obtain friction coefficients of mild steel under lubricants including boric acid, Vaseline, grease and dry conditions. According to Male and Cockcroft …
Published in International Journal of Manufacturing and Materials Processing · Vol. 4, Issue 2, 2018 · pp. 34–42 Read article
-
CFD Analysis of Hydrodynamic Journal Bearing
Abstract: Journal bearings have the longest history on scientific study of any class of fluid-film bearings. These journal bearings are widely used in most of the rotating machineries due to its high load-carrying capacity and formation of fluid-film thickness during the operation. This research paper represents performance evaluation of hydrodynamic journal bearing using Computational Fluid Dynamics (CFD) approach. For this study, two different geometrical bearings are considered (circular and non-circular) operating …
Published in International Journal of Manufacturing and Materials Processing · Vol. 4, Issue 2, 2018 · pp. 23–29 Read article
-
Galerkin Method of Weighted Residual to Study on Enhanced Heat Transfer in Cylindrical Micro-Fins Heat Sink Using Artificial Surface Roughness
Abstract: In this paper, a theoretical investigation is carried out on the use of artificial surface roughness for enhanced heat transfer and thermal management of cylindrical micro-fins with artificial surface roughness. The developed thermal models which are solved using Galerkin method of weighted residual, considered variable thermal properties according to linear, exponential and power laws. The approximate analytical solutions are used to carry out parametric studies and to establish the thermal …
Published in International Journal of Manufacturing and Materials Processing · Vol. 4, Issue 2, 2018 · pp. 12–22 Read article