Pressure vessel design manual is a solutionsfocused guide to the many problems and technical challenges facing designers of pressure vessels. Cobstran is designed to carry out the many linear analyses required to efficiently design and analyze structural components made of multilayered. This involves a mixture of helical and hoop winding patterns, giving a high build rate and high production output. Therefore a dome contour which allows an isotensoid behavior is the.
Composite materials for pressure vessels and pipes jack e. Korthfiber will be offering the full range of cadfil products as well as their own multiaxis filament winding machines. The deformation and stresses of a thickwalled cylinder with multiangle winding filament under uniform internal pressure are proposed. Pdf filament winding process has emerged as one of the potential composite fabrication processes with lower costs. Pressure vessels production techniques have no secret for the world leader in high pressure vessels for desalination processes. Abstract a software suite tailored to the analysis and optimization of filament wound composite pressure vessels has been developed. Burst pressure, maximum shell displacement and the optimum winding angle of the composite vessel under pure internal pressure were determined. To begin, here is a picture showing the basic components of a filament winder in operation. Composite analysis a cobstran filament winding processing diagram is depicted in figure 1. Ck composites manufactures a wide variety of tubes for oem, military, and commercial applications. It calculat es the winding pattern for any mandrel geometry.
Filamentwound composite pressure vessels, which utilize a fabrication technique of filament winding to form high strength and lightweight reinforced plastic parts, are a major type of high pressure vessel and are widely used in the commercial and aerospace industries such as fuel tanks, portable oxygen storage, rocket motor cases and so on. Intended as both an essential learning tool for the developing engineer and a handy reference for the seasoned professional, it brings together otherwise scattered information into one easytouse. Fw methods have a parallel winding method, a level winding method and a spiral winding method, those outlines are shown in fig. Filament winding is the most efficient method of manufacturing composite shapes. Major cost factor of pressure vessels is the fiber material, because of the use of high performance carbon fibers and the required wall thicknesses due to. Winding angle optimization of filamentwound cylindrical.
By crossweaving continuous rovings of carbon fiber, fiberglass or aramid fiber, and embedding them in a resin matrix, the filament winding process results in an optimized product that is perfect for pressure vessels, aerospace components, golf clubs, military armaments, and hundreds. Wolfulrich herres to bring fuel cell vehicles on the road adam opel ag. The society is not responsible for statements or opinions in papers or discussions at the meeting. Pressure vessels, anisotropy, winding patterns, stress analysis. If a given tank design has different end dome geometries, it can be analyzed by creating two separate models, one for each end of the vessel. Helms department of mechanical engineering, louisiana state university, baton rouge, louisiana 70803, usa keywords. The main purpose of the this paper is to study the influence of the filament winding process variables, considering both the winding angle variation and the laminate thickness change, on the mechanical behavior of a composite pressure vessel. Challenges multifold due to lack of standards and non availability of proven. Design of experimental work is executed for establishing, formulation of experimental mathematical model. Over 40 years of experience in composite filament winding confirm protec arisawas expertise in the organization and production of sophisticated technical solutions for many industrial sectors.
Its development, manufacture, applications and design. Optimal design of filamentwound composite pressure vessels. They have a variety of applications in industry, including in oil refineries, nuclear reactors, vehicle airbrake reservoirs, and more. The wide range of pressure vessel applications turned it into one of the most important equipment of. Design and analysis of filament wound toroidal pressure vessel. During winding, fiber tension generates pressure between layers of uncured composite. Composite pressure vessel variability in geometry and filament winding model. Filament wound composite pressure vessels, which utilize a fabrication technique of filament winding to form high strength and lightweight reinforced plastic parts, are a major type of high pressure vessel and are widely used in the commercial and aerospace industries such as fuel tanks, portable oxygen storage, rocket motor cases and so on. Description of the book pressure vessel design manual. Filament wound pressure vessel is having the advantage of high strength to weight ratio compared to metallic pressure vessel.
Experimentation data is chosen, using methodology of engineering experimentation for cnc filament winding machine. The present work, the low cost filament winding machine is designed and developed for the fabrication of frp pipes and cylindrical specimens. Vertical frp tank winding machine, as a hightech electromechanical machine, is also designed for manufacturing winding molded tanks and vessels similar to horizontal frp tank winding machines. There are only two asme standards are available for glass fibre reinforced composite pressure vessels water storage tanks. Formulation of generalized approximate mathematical model. Composite pressure vessels cpvs are used in a variety of applications ranging from carbon. Filament wound composite pressure vessels, which utilize a fabrication technique of filament winding, fig. Formulation of generalized approximate mathematical model for.
May 30, 2012 composite pressure vessel variability in geometry and filament winding model. Each automated filament winding production line begins with close discussion between mikrosam and its customer. However, this one fabricates vertical largescale products from 4m to 25m in diameter on customers. Geometric variations in the dome region cause the fiber to change angels and thickness and hence offer difficulty to acquire a constant stress profile isotensoid. Influence of the filament winding process variables on the. Automated filament winding enables competitive composite. Composite pressure vessels require special design attention to the dome region because of the varying wind angles generated using the filament winding process. Design and failure analysis of geodesic dome of a composite. If a given tank design has different end dome geometries, it can be analyzed by creating two sep. The high design freedom and the intrinsic orthotropy of longfiberreinforced.
This allows for greater flexibility in selecting, winding length, diameter, number of controlled axes and number of spindles. Filament winding, pressure vessel wrapping youtube. Ck composites filamentwound, filament winding products utilize fiberglass roving reinforcements in a specialized epoxy resin matrix. A winding operation is the basic fabrication technique for forming loadbearing structural elements made of polymer matrixbased fibrous composites, which have the shapes of bodies of revolution. Pdf filament winding technique, experiment and simulation.
Calculating the optimum angle of filamentwound pipes in. Pdf design of optimum filament wound pressure vessel with. Filament winding composite material production and. Abstract filament wound composite pressure vessel is basically a high pressure.
This research also includes the design, fabrication and mass production of pressure vessel with filament winding along with theory of experimentation. Product and identification labels are attached to the four completed cylinders which are removed and placed in crates prior to being wrapped with a protective glass fibre. Finite element analysis of filamentwound composite pressure. The process for producing a composite pressure vessel is termed filament winding.
A laminate manufactured by filament winding can be considered as an angle ply. Finite element method fem was utilized to investigate the effects of winding angle on filament wound pressure vessel. Pattern design for nongeodesic winding toroidal pressure vessels the winding pattern should meet the steadyconditions as follows 10. Request pdf design of filament wound isotensoid pressure vessels with unequal polar openings previous studies on filament wound isotensoids are mostly based on geodesic winding. Composite pressure vessel consists of filament wound laminated structure, along with polar. Swarna kumari2 1pg student, department of mechanical engineering, jntu college of engineering, kakinada, a. Pressure vessels have been manufactured by filament winding for a long time. Korthfiber evaluated other filament winding software but found cadfil to be the most user friendly and accurate, to quote their proprietor what impressed us with cadfil was that every trial we did was right first time. Vertical winding machine for large scale frp tanks. The concepts of engine lathe supported by a wet winding method were being used in the development of filament winding machine. Finite element method fem was utilized to investigate the effects of winding angle on filamentwound pressure vessel. The application allows the user to create, run, and post process a finite element model and allows for detailed specification of structural geometry and winding layout parameters. It brings together otherwise scattered information and explanations into one easytouse resource to minimize research and take readers from problem to. Finite element analysis of filamentwound composite pressure vessel under internal pressure.
Some filament winding basics in this course, we will cover the capabilities of composite designer for generating a wide variety of parts programs. Toroidal pressure vessel and filament wound pressure vessel used to store cng. Pdf influence of the filament winding tension on physical. Composite pressure vessel variability in geometry and. Filament winding has become a popular construction. The techniques for filamentwound com posite pressure vessel can be classified into two main types. Unique fiber architecture and mandrelless filament winding process make impossible rotational paraboloid sculpture possible in.
All durashell vessels are externally reinforced with frp filament winding laid accurately using modern fully automatic filament winding machine. Filament winding creates hollow structures of incredible strength. Composite pressure vessel fabricated by filament winding technique. Topics include capabilities and limitations of filament winding, practical issues such as fiber and resin handling, winding theory, software and numerical control, history of the process, and more. Background in the filament winding composite manufacturing process. Together, they determine the target tank sizes, the definitions of the fibers and resins that will be used, the level of automation desired and the standards to which the tanks will be certified. Fiberreinforced plastics frp pressure vessels have been made successfully by filament winding. Netting analysis for filamentwound pressure vessels mit. At the time of writing this manual 2 sizes of roller are available along with various wheel types. Pressure vessels are closed containers designed to hold gases or liquids at a pressure substantially different from the ambient pressure. Finite element analysis of filamentwound composite. Filament winding is well suited to automation, and there are many applications, such as pipe and small pressure vessel that are wound and cured without any human intervention. The stresses of each orthotropic unit of fiber layers, as well as longitudinal stress along the fiber direction.
Design and analysis of filament wound composite pressure. Burst pressure, maximum shell displacement and the optimum winding angle of the composite vessel under pure internal. The longitudinal stress is a result of the internal pressure acting on the ends of the cylinder and stretching the length of the cylinder as shown in. Filament wound composite pressure cylindersfilament wound composite pressure cylinders j. Pressure vessel design manual is a solutionsfocused guide to the many problems and technical challenges involved in the design of pressure vessels to match stringent standards and codes. Filament winding breathes life into gas bottles pdf free. The techniques for filament wound composite pressure vessel can be classified into two maintypes. A common design is a cylinder with end caps caheads.
Formulation of generalized approximate mathematical model for cylindrical pressure vessel. Articles from journal of pressure vessel technology are provided here courtesy of american society of mechanical engineers. The modwind range of filament winding machine is a modular concept design reducing material and engineering design costs. The controlled variables for winding are fibre type, resin content, wind angle, tow or bandwidth and thickness of the fiber bundle. Quantification of processing effects on filament wound. Design and failure analysis of geodesic dome of a composite pressure vessel srirama satish kumar 1, a. Calculating the optimum angle of filamentwound pipes in natural gas transmission pipelines using approximation methods. Optimum design of dome contour for filamentwound composite. Pressure vessels david roylance department of materials science and engineering massachusetts institute of technology cambridge, ma 029 august 23, 2001. Spherical pressure vessel, like the one shown in fig ure 1, is preferred for storage of high pressure fluids. Filament winding, pressure vessel wrapping on vimeo. Their design methods were mainly based on the nettingdictated paths, geodesics or nongeodesics.
One of the main driving forces in current pressure vessel research and development is cost reduction. Mertiny and ellyin 7 investigated the influence of the filament winding tension on physical and mechanical properties of glass fiber reinforced polymeric composite pipes. Filamentwound fw composite pressure vessels utilizing high strengthtedensity. The tsaiwu failure criterion was considered as the criterion for the vessel design. Winding patterns in filament winding, one can vary winding tension, winding angle andor resin content in each layer of reinforcement until desired thickness and strength of.
Winding patterns in filament winding, one can vary winding tension, winding angle andor resin content in each layer of reinforcement until desired thickness and strength of the composite are achieved. Nasa white sands test facility, las cruces, new mexico, 88004. The corresponding pressure buildup due to pretension in the winding filaments is illustrated in appendix b. Iowa state university of science and technology, ames, iowa, 50011.
The application applies a symmetry boundary condition at the midlength point of the cylinder, so that a halfsymmetric model of the complete pressure vessel is created. Fw composite pipes made of fiberreinforced plastics have many potential advantages over pipes made from conventional materials, such as high specific stiffness and strength, good corrosion resistance and thermal insulation. Filament winding breathes life into gas bottles ated data. Stress analysis of thinwalled pressure vessels stress analysis, thinwalled pressure vessel. Integral determination of winding pattern s since the determination of feasible winding patterns does strongly rely on the number and dimensions of the applied rovings, it is convenient to shortly outline how these parameters affect the strength of a particular pressure vessel design, which is. Figure 4 from weight optimization of filamentwound pressure.
At present, tend to use of fw composite pipes is increasing in different industries and structures. Jun 26, 2015 filament winding project the project is fully designed, coded and manufactured by 8 students from the hague university of applied science. Weight optimization of filamentwound pressure vessels. Composite materials, pipe, pressure vessel, design, analysis contents 1. Pdf on may 28, 2015, walid mahdy and others published design of optimum filament wound pressure vessel with integrated end domes. However, this one fabricates vertical largescale products from 4m to 25m in diameter on customers site. Mechanical property of a pressure vessel made from cfrp fabricated by a fw method filamentwindingmolding methods, i. In a thin wall pressure vessel, two stresses exist. Quality control measures and strategies for filament wound. The maximum strength ratio and more uniform strength for all layers can be achieved by variation of winding angle of filament wound fw vessel. The soda can is analyzed as a thin wall pressure vessel.
Cadwind simulates the process using a computer generated model of the winding. Comparative study for the design of optimal composite. Filament wound composite pressure vessel analysis with. Pressure vessels have been classified in four categories, based on their construction. Composite material, filament winding, pvc, strength 1. The maximum strength ratio and more uniform strength for all layers can be achieved by variation of winding angle of filamentwound fw vessel.
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