Since the appearance of finiteelement method, the attention of several researchers has been drawn to the inclusion of drilling freedom in plane elasticity finiteelementanalysis. Drilling freedom is defined by rotation about the normal to the plane of element. Tocher and Hartz  examined this problem in 1967 but their element was computationally very inefficient. Further attempts by William , Youshida , Robinson , MacLeod  and some other researchers to solve the problem of inclusion of drilling freedom were all unsuccessful until 1984. At that time, Allman  could successfully include the drilling freedoms in the finiteelement method. His work was completed by Bergan and Fellipa [9, 10] in 1985 and Allman  in 1988. Cook  introduced a four-noded quadrilateral membrane element with two translational and one rotational degree of freedom at each node. Cook element improved by Macneal and Harder  turned into an element called QUADR which was then implemented in MSC/NASTRAN code and was found out to be a robust and accurate element.
Abstract- In the present work finiteelementanalysis of a glazed surface of a structure is performed. Considering particular location, topography and terrain and considering glass panel of a particular type, size and thickness, analysis is performed for wind pressure and suction acting on the surface. Different cases are considered – (i) varying truss widths, (ii) varying cable position and (iii) varying number of cables.
Blade is the key component to harness wind energy. In this paper, finiteelementanalysis is conducted on a wind turbine blade with NACA 2412 aerofoil design. The paper studies the analysis of an existing wind turbine blade. The blade optimization is carried out by considering parameter like shapes of aerofoil profile, stresses and deformation on blade. When designing a wind turbine, the aim is to attain the highest possible power output under particular atmospheric conditions and this depends on the shape of the blade as well as on its material. The dynamic and mechanical properties of a wind turbine can be modified by changing the composite material of the blade. Hence emphasis is given on the material of the blade. The results of analysis of different material are compared to evaluate the best possible one suited for practical application.
It gives me great honor and satisfaction in presenting this comprehensive experimental study of “FiniteElementAnalysis of Roller Burnishing Process”. I will always be thankful to my project guide Prof. V. K. Kurkute for his advice and guidance in this work and his tireless support in ensuring its completion. I would also like to express my thanks to Mechanical Engineering Department and the faculty members of P.G. (Mechanical Engineering) for their precious support.
We successfully analyzed the roll cage structure for its strength against the collision from front, rear, side. Factor of safety is under the safe limit as well as explained concepts of static analysis and selection of mesh size in finiteelementanalysis. It is observed that the stresses obtained are within the safe range for the material AISI 4130 (Chromoly). The stresses and deformation obtained by the simulation for material 4130 (Chromoly) gives optimum result at mesh size 3 mm. The design, development and fabrication of the FRAME is carried out successfully.
Anthony L. Sabatini etal., re-evaluated several hip stems of various cross sections using finiteelementanalysis. The authors compared the von Mises stress of the stems at the designated locations as well as the displacements were recorded. They have taken three materials for the analysis they were; Cr–Co–Mo, Stainless Steel SS316L, and titanium alloy. The authors found that Ti–6Al–4V exhibits lower stress than the other two materials and also, they have noticed that the circular and elliptical cross-sections of the hip implant’s stem design produces even distribution of stress throughout the length of the stem than the other cross-sections namely; trapezoid and oval. The authors used COSMOS WORKS software for modelling and analysis of the stem shapes.
ABSTRACT: The roll cage is used as a structural base for all terrain vehicles and it also protects the occupant in case of impact and roll-over accidents so determining the strength and impact withstanding capacity of the roll Cage plays important role for the design and it is also a supporting structure for the engine. Most of the forces are taken up by the roll cage.This paper aims at FiniteElementanalysis of roll cage. Stress analysis carried out using Ansys workbench and it includes torsional analysis .modal analysis for the maximum operating speed of the vehicle.
In this work, we present a priori error estimates of finiteelement approximations of the solution for the equilibrium equation of an axially loaded Ramberg-Osgood bar. The existence and uniqueness of the solution to the associated nonlinear two point boundary value problem is established and used as a foundation for the finiteelementanalysis. Keywords: Nonlinear Two Point Boundary Value Problem; Ramberg-Osgood Axial Bar; Existence and Uniqueness of
This paper deals with the linear and non-linear finiteelementanalysis of reinforced concrete slab for various types of panels of slab given in IS 456:2000. Slab has been modeled for various thicknesses as 75mm, 100mm and 125mm. Eight nodded solid element and 3-D spar element is used for modeling of concrete block and reinforcement respectively. The comparison is carried out between linear and non-linear analysis of concrete slab with respect to the B.M. coefficients and deflection for various panels of slab. A three dimensional finiteelement modeling of the reinforced concrete slab yield satisfactory result for the nonlinear analysis. Nonlinear finiteelementanalysis proves that it is very powerful tool for the nonlinear problem solution. For modeling and analysis of slab NISA software is used to get more accurate and practical results.
Finally, for this PSM project mainly focused on design optimization of bicycle frame and to proposed the best design and analysis. Bicycle frame is important part in a bicycle. It is because bicycle frame become a main body or main frame at bicycle. As a important part at bicycle, bicycle frame must be high strength, tough and durability. It is because, the body frames usually applied with large force where the force comes from weight of rider. The bicycle frame usually applied with load around 40kg to 90kg of people. So for this PSM project focus on design and improve the current bicycle frame design and do the analysis to the bicycle frame design by using FiniteElementAnalysis. Then optimize the design of bicycle frame design by redesign bicycle frame until the get the best result of analysis. This project tries to propose the best design and analysis of bicycle frame. The optimization to increase quality, reduce product cost and full fill the customer satisfaction. For this project CAD tools as tools to design deep fry basket and FEA tools for the analysis. For this project software to be used are SOLIDWORKS as CAD software and NASTRAN PATRAN software as analysis software.
Once the loading and overall dimensions of the bridge are accounted for a rough design is obtained from traditional design methods. This is done for a number of reasons. A starting point is needed with the finiteelement model in terms of girder sizes and slab thicknesses. The author had no previous experience in designing bridges. Therefore the approximate depth of the concrete slab and the girder sizes are not known. The design can also be used for a rough comparison with the results from the finiteelementanalysis. If the finiteelementanalysis produces results that are greatly different from those calculated in this section then there is a good chance a mistake has been made.
Finiteelementanalysis (FEA) has become ordinary in recent days, and is now the source of income in the industry. Numerical solutions to even very complicated stress problems can now be obtained using FEA. The method is so important that even introductory treatments of Mechanics of Materials. Finiteelement codes are less complicated than many of the word processing and spreadsheet packages found on modern microcomputers. Nevertheless, they are complex enough that most users do not find it effective to program their own code. A number of prewritten commercial codes are available, representing a broad price range and compatible with machines from microcomputers to supercomputers1. However, users with specialized needs should not necessarily shy away from code development, and may find the code sources available in such texts as that by Zienkiewicz 1 to be a useful starting point.
The research outcome will help designer to estimate strength of welded structural component under dynamic load. Welding is the common engineering join method which used for various structures. The major construction projects in all around the worlds are using cranes, earth moving equipment, those also always under dynamic load, the marine ships another heavy welded structure which are also subjected to dynamic loads at all the time. The body of transportation equipment are highly impacted by dynamic load which is focused in this analysis. Fatigue test and analysis of a T joint with fillet welding in a typical connection is presented in this study. Relevant finiteelementanalysis of the joint is also established. The project will help to characterise the behaviour of fillet welded joints.
ABSTRACT: This paper focuses on the computational natural frequency analysis (Modal analysis) of 12 layered multiscale composite beam elements. Composites due to their inherent capabilities that were regarded as one of the most advanced materials that drive today’s technology. These practical attributes are very appropriate in the make of parts for the automobiles, aviation and other entertainment enterprises. Among that nanoparticles also play very important functions. A composite material has two phases; matrix phase and reinforcement phase. In this study properties of each phases are being enhanced with nanoparticles and enhancement in the desirable characteristics are focused. Polymer nano composite offers an extensive variety of promising application as a result of their much upgraded properties emerging from the fortification of nanoparticles. The synergistic effect of the constituents of multiphase composites provides new applications in various fields. The finiteelementanalysis is a process in which the particular component is converted into small elements called discretization process, the elements are connected to one another by nodes and the complete set of elements is known as mesh. Thus FEM encrypts the various forces and deformations in each noded element.
Finiteelement method is a numerical analysis theory that is widely used for various situations in engineering as this method is amenable to systematic computer programming and offers scope for application to a wide range of analysis problem. Finiteelementanalysis has now become an integral part of Computer Aided Engineering and is being extensively used in the analysis and design of many complex real-life systems. Classical analytical methods consider a differential element and develop the governing equation, usually in the form of partial differential equations. When applied to real life problem, it is often difficult to obtain an exact solution to these equations in view of complex geometry art boundary conditions. The finiteelement method can be viewed as a tool to transform partial differential equations into algebraic equations, which are then easily solved. Finiteelement method analysis allows detailed computations of the overall response in critical structural members subjected to deterministic or random loads. In vibration problem, the response is time varying and inertia/dissipation properties of the structure affect the response, the complete dynamic response analysis is usually much more complex. Finiteelement procedure is the best technique in this regard for the development of a simple and efficient numerical model for the solution of vibration problems directly in time and frequency domain.
In this paper, a three dimensional (3D) finiteelement model is developed to stimulate the behaviour of double web castellated beam having an I-shaped cross section. Various finiteelement models for determining the Y-directional deformations and von-mises stresses of I-beam with various cross-section and lengths are developed and useful results have been obtained. Fixed supported I-beam models have been analyzed and the corresponding deflections and stresses are obtained for a variety of cross-sectional geometries, and lengths where d is depth of web opening, D is depth of beam. Modelling is conducted using the general- purpose finiteelement software package ANSYS 16.0. In this paper, firstly solved some numerically problems for single web castellated beam and double web castellated beam with UDL 12 KN/m for different span of 1.5m, 3m, 5m and 7m. From that results analysis have been done in Ansys 16.0. ANSYS provides solutions for many type of analysis ANSYS is a widely used commercial general-purpose finiteelementanalysis program.
Cylindrical pressure vessels are widely used for commercial, under water vehicles and in aerospace applications. At present the outer shells of the pressure vessels are made up of conventional metals like steels and aluminium alloys. The payload performance/ speed/ operating range depends upon the weight. The lower the weight the better the performance, one way of reducing the weight is by reducing the weight of the shell structure. The use of composite materials improves the performance of the vessel and offers a significant amount of material savings. Moreover, the stacking sequence is very crucial to the strength of the composite material. This Project involves various objective functions such as stiffness, buckling load and Weight at each level of optimization. Usually composite pressure vessels are designed for minimum mass under strength constraints. A graphical analysis is presented to find optimum fiber orientation for given layer thicknesses. In the present work, an analytical model is developed for the Prediction of the minimum buckling load with / without stiffener composite shell of continuous angle ply laminas (±45°,±55°,±65°,±75°,±85°) for investigation. Comparisons are made for two different approaches i.e. the finiteelement model and the theoretical model. A 3-D finiteelementanalysis is built using
Abstract: The rail wheel interaction is one of the important mechanics for the study in Railway Engineering, requiring both vast application expertise and dependable analysis approaches. The contact area and pressure distribution in a wheel/rail contact is essential information required in any fatigue or wear calculation and to determine design life, regrinding and maintenance scheme. The objective of this project is to understand, formulate and simulate wheel-rail interaction analysis at static conditions with a view to optimize the wheel and to optimize the mass of the railway wheel subjected to both vehicle load and contact pressures. In railway, engineers applied one of the numerical computation techniques known as FiniteElementAnalysis (FEA) into Rail–Wheel contact problems to validate their results by comparing them to their real life data obtained over the years. So we have used software ANSYS in this research for Finiteanalysis of rail wheel interaction
Abstract - Chassis is one of the important part that used in automobile industry. it is a rigid structure that forms a skeleton to hold all the major parts together. Chassis frames are made of “steel section” so that they are strong enough to withstand the load and shock. Chassis must be light in weight to reduce dead weight on the vehicles. Major challenge in today’s automobile vehicle industry is to overcome the increasing demands for higher performance, lower weight in order to satisfy fuel economy requirements, and longer life of components, all this at a reasonable cost and in a short period of time. The study is to produce results to rectify problems associated with structures of a commercial vehicle such as strength, stiffness and fatigue properties along with stress, bending moment and vibrations. This can be achieved by static and dynamic analysis, combining existing theoretical knowledge and advanced analytical methods. Design of a Chassis is carried by using CATIA .And finiteelementanalysis will be carried out by using ANSYS.