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An Investigation Of Durability And Reliability Of Hdpe Pipe For Large Diameter Water Transmission Applications
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Book Synopsis An Investigation of Durability and Reliability of HDPE Pipe for Large Diameter Water Transmission Applications by : Divyashree
Download or read book An Investigation of Durability and Reliability of HDPE Pipe for Large Diameter Water Transmission Applications written by Divyashree and published by . This book was released on 2015 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt: The drinking water infrastructure in the North America requires a durable and reliable water transmission pipe material. Thus, it is important to study pipe performance, so that water utilities can benefit from cost-effective and efficient pipe installations and longer design life. All pipe materials deteriorate overtime and every pipe has unique properties with advantages and limitations. During a pipe's life cycle, failures occur due to numerous factors such as age, loading conditions, environmental conditions, installation quality, manufacturing procedures, operation and maintenance strategies and so on. This research focuses on reliability and durability of large diameter (16 in. and larger) high density polyethylene (HDPE) pipe and specifically its fatigue performance under cyclic loading, since limited information is available on resistance of this pipe under transient pressures. To conduct this research, in addition to a comprehensive literature search, a national survey of water utilities in the North America was performed. Additionally a testing concept was developed to determine the performance of a HDPE pipe sample with recurring surges for two million cycles. This specimen was subjected to a pressure of 1.5 times Pressure Class (PC) for a 16-in., 15-ft long, DR 17, 4710 HDPE pipe with a fused joint in the middle. The results of this investigation showed that at this time, few water utilities use large diameter HDPE pipe. Those that use large diameter HDPE, majority are satisfied with the pipe performance; however, they had some concerns regarding joints and fittings as described in this thesis. Also, some utilities did not differentiate between 4710 HDPE pipe tested in this research, and older products such as 3408 and 3608. The results of testing showed that the pipe sample described above was able to withstand the 2 M cyclic loadings between 125 psi and 188 psi (1.5 times its pressure class).
Book Synopsis Performace Comparison of High Desity Polyethylene Pipe (HDPE) in Municipal Water Applications by : Chandan Venkatesh
Download or read book Performace Comparison of High Desity Polyethylene Pipe (HDPE) in Municipal Water Applications written by Chandan Venkatesh and published by . This book was released on 2014 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: The current and forecasted major challenge faced by water utilities is delivering potable water efficiently with minimum loss to end users. Water pipe failure has negative impact not only local communities but also on the nation's economy. The American Water Works Association (AWWA) has estimated that it will cost over $250 billion to replace and renew the nation's water pipes over the next 20 years. According to the 2009 American Society of Civil Engineers (ASCE) Report Card, seven billion gallons of water are lost in this country every day! Every pipe has unique properties with advantages and limitations. During a pipe's life cycle, failures occur due to numerous factors such as age, loading conditions, environmental conditions, installation quality, manufacturing procedures, operation and maintenance strategies and so on. The very limited information on High Density Polyethylene (HDPE) pipes created the need for this research. This thesis is a preliminary step towards understanding the HDPE pipe performance for lower and larger pipe size diameters. To achieve the objectives of this research, a nationwide survey was carried out. For the respondent utilities, the average annual failure rate for the smaller diameter pipe is 0.5 per 100 miles. Most frequent causes of failures occurring in small diameter pipes were due to joint failure. Due to lack of enough large diameter HDPE pipe respondents, the results were not conclusive.
Book Synopsis Fatigue Impacts on HDPE Pipe Material Properties by : Marjan Shahrokh Esfahani
Download or read book Fatigue Impacts on HDPE Pipe Material Properties written by Marjan Shahrokh Esfahani and published by . This book was released on 2017 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt: During a pipe's life cycle, failures occur due to numerous factors such as age, loading conditions, environmental conditions, installation quality, manufacturing procedures, operation and maintenance strategies and so on. Frequent pressure surges or fluctuations in a piping system may cause a fatigue failure as fatigue is one of the most important issues in water pipes due to water hammer impacts. Application of buried High Density PolyEthylene (HDPE) water pipelines has significantly increased in recent years, and PE4710 is a new member of HDPE family. So, there is not yet enough information about PE4710 long-term performance. Due to lack of enough information on resistance of large diameter HDPE pipes under transient pressures, this research focuses on post-fatigue mechanical properties of a large diameter DR17 (16in.) High Density PolyEthylene (HDPE) 4710 pipe under cyclic loading. This work consists of two parts: First, experimental work which included the fatigue tests on an HDPE pipe sample for 2,000,000 cycles. Tensile tests on the dogbone specimens cut from the fatigue tested HDPE pipe and a new pipe sample from the same manufacturer were performed to compare material properties. Scanning Electron Microscopy (SEM) tests were done to visually show the impacts of fatigue on the molecular structure of the HDPE pipe. Second, Finite Element Modeling (FEM) were used to investigate the effects of different stress amplitudes on the HDPE pipe. The findings of this experimental study showed that after two million cycles of internal water pressure of 125 psi to 188 psi, rupture strain and tensile strength of PE4710 increased about 15% and 2% respectively, while yield strain reduced by approximately 20%. The circumferential location of dogbone specimens from the pipe sample did not have any effects on the results, but longitudinal location of specimens had impacts on fatigue mechanical properties of samples. Sections near butt-fused joint showed more reduction in yield strain and less increase in tensile strength than end sections near the end supports. The SEM test results showed initiation of micro-cracks in longitudinal direction of the pipe. Using finite element analysis, a new equation using Stress Amplitude vs. No. of Cycles (S-N) curve was developed for PE4710. It was concluded that current equations to predict fatigue life of PE4710 pipes may overestimate its fatigue life, by approximately 15%.
Download or read book Handbook of Polyethylene Pipe written by and published by Plastics Pipe Institute. This book was released on 2012-02 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published by the Plastics Pipe Institute (PPI), the Handbook describes how polyethylene piping systems continue to provide utilities with a cost-effective solution to rehabilitate the underground infrastructure. The book will assist in designing and installing PE piping systems that can protect utilities and other end users from corrosion, earthquake damage and water loss due to leaky and corroded pipes and joints.
Author :American Water Works Association Publisher :American Water Works Association ISBN 13 :1583215492 Total Pages :286 pages Book Rating :4.5/5 (832 download)
Book Synopsis Concrete Pressure Pipe, 3rd Ed. by : American Water Works Association
Download or read book Concrete Pressure Pipe, 3rd Ed. written by American Water Works Association and published by American Water Works Association. This book was released on 2008 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive manual of water supply practices explains the design, selection, specification, installation, transportation, and pressure testing of concrete pressure pipes in potable water service.
Book Synopsis Plastic Pipe Systems: Failure Investigation and Diagnosis by : Mehdi Farshad
Download or read book Plastic Pipe Systems: Failure Investigation and Diagnosis written by Mehdi Farshad and published by Elsevier. This book was released on 2011-04-19 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Industrial and domestic piping is increasingly made from various plastics and composites, and these materials withstand heavy use over long periods. They are, however, affected by environmental and other factors over time and can degrade, causing major problems within piping systems. Farshad's book deals with why plastic pipes and systems fail, and with how to investigate and diagnose such failures. Pipes may buckle, fracture, change in dimensions and colour, blister and delaminate, corrode through stress, be abraded and obstructed: all these cause problems and lead to loss of efficient operation of a system. The author's experience is backed up by a large data-base of results Wide target audience Only book covering the entire subject Unique approach based on long experience
Author :American Water Works Association Publisher :American Water Works Association ISBN 13 :1583212183 Total Pages :250 pages Book Rating :4.5/5 (832 download)
Book Synopsis Ductile-iron Pipe and Fittings by : American Water Works Association
Download or read book Ductile-iron Pipe and Fittings written by American Water Works Association and published by American Water Works Association. This book was released on 2003 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides practical information about the design and installation of ductile iron pressure piping systems for water utilities. The 12 chapters outlines the procedure for calculating pipe wall thickness and class, and describes the types of joints, fittings, valves, linings, and corrosion protection a
Book Synopsis Design and Installation of Marine Pipelines by : Mikael Braestrup
Download or read book Design and Installation of Marine Pipelines written by Mikael Braestrup and published by John Wiley & Sons. This book was released on 2009-02-12 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive handbook on submarine pipeline systems covers a broad spectrum of topics from planning and site investigations, procurement and design, to installation and commissioning. It considers guidelines for the choice of design parameters, calculation methods and construction procedures. It is based on limit state design with partial safety coefficients.
Book Synopsis Health Aspects of Plumbing by : World Health Organization
Download or read book Health Aspects of Plumbing written by World Health Organization and published by World Health Organization. This book was released on 2006-03-03 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication describes the processes involved in the design installation and maintenance of modern plumbing systems. It recommends a number of plumbing system design and installation specifications that have demonstrated their validity from years of experience. It also examines the microbiological chemical physical and financial risks associated with plumbing and outlines the major risk management strategies that are used in the plumbing industry and emphasizes the importance of measures to conserve supplies of clean water. This work is dedicated to assisting developing countries in achieving the best possible plumbing levels to ensure the highest health benefits from use of sound plumbing practices. It is aimed at administrators and plumbers working in areas that are served by a mains drinking- water supply or sewerage system or are about to install a mains drinking- water supply or sewerage system. It should be of particular value to those working in countries or areas that are in the early stages of introducing modern plumbing systems. While it draws attention to the problems of drinking- water supply and waste removal in developing countries and outlines some of the strategies currently used it does not systematically cover issues specific to developing countries.
Book Synopsis M55 PE Pipe - Design and Installation, Second Edition by : Awwa
Download or read book M55 PE Pipe - Design and Installation, Second Edition written by Awwa and published by . This book was released on 2020-09-25 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manual describes the design, specification, installation, and maintenance of polyethylene (PE) water pipe.
Download or read book Extrusion written by Harold F. Giles Jr and published by William Andrew. This book was released on 2013-09-21 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of Extrusion is designed to aid operators, engineers, and managers in extrusion processing in quickly answering practical day-to-day questions. The first part of the book provides the fundamental principles, for operators and engineers, of polymeric materials extrusion processing in single and twin screw extruders. The next section covers advanced topics including troubleshooting, auxiliary equipment, and coextrusion for operators, engineers, and managers. The final part provides applications case studies in key areas for engineers such as compounding, blown film, extrusion blow molding, coating, foam, and reprocessing. This practical guide to extrusion brings together both equipment and materials processing aspects. It covers basic and advanced topics, for reference and training, in thermoplastics processing in the extruder. Detailed reference data are provided on such important operating conditions as temperatures, start-up procedures, shear rates, pressure drops, and safety. A practical guide to the selection, design and optimization of extrusion processes and equipment Designed to improve production efficiency and product quality Focuses on practical fault analysis and troubleshooting techniques
Book Synopsis Fracture Behaviour of Polymers by : A.J. Kinloch
Download or read book Fracture Behaviour of Polymers written by A.J. Kinloch and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 511 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over recent years there has been a tremendous upsurge in interest in the fracture behaviour of polymers. One reason for this is the increas ing use of polymers in structural engineering applications, since in such circumstances it is essential to have as complete an understanding as possible of the polymer's fracture behaviour. This book is designed to meet the requirements of those who need to be informed of the latest developments in the field of polymer fracture. It is written particularly for research workers but it should also prove invaluable for advanced students taking final-year undergraduate or postgraduate courses. The main emphasis is upon the use of fracture mechanics in the study of polymer fracture but this approach is then developed to cover the micromechanisms of the fracture process. Particular prominence is given to the relationship between structure, mechanical properties and the mechanics and mechanisms of fracture. The first chapter is a brief introduction which has several aims. One is to introduce polymers to the reader who does not have a strong background in the subject and another is to provide background material that will be used at later stages. The book is then split into two main parts: the first deals with the mechanics and mechanisms whilst the second is concerned with materials. In Part I phenomena such as molecular fracture, fracture mechanics, shear yielding and crazing are covered from a general viewpoint.
Book Synopsis Handbook of Plastics, Elastomers, and Composites by : Charles A. Harper
Download or read book Handbook of Plastics, Elastomers, and Composites written by Charles A. Harper and published by McGraw Hill Professional. This book was released on 2002 with total page 904 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here is a thoroughly revised edition of the most comprehensive guide to plastics, elastomers and composites available today. A standard reference, it provides current data, costs & properties for all designers and manufacturers of plastic products.
Book Synopsis ASCE Combined Index by : American Society of Civil Engineers
Download or read book ASCE Combined Index written by American Society of Civil Engineers and published by . This book was released on 1990 with total page 860 pages. Available in PDF, EPUB and Kindle. Book excerpt: Indexes materials appearing in the Society's Journals, Transactions, Manuals and reports, Special publications, and Civil engineering.
Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2566 pages. Available in PDF, EPUB and Kindle. Book excerpt:
