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Relevant bibliographies by topics / HDPE Pipe

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Academic literature on the topic 'HDPE Pipe'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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Journal articles on the topic "HDPE Pipe"

1

Li, Zheng, Hong Wu Zhu, Xiang Ling Kong, and Abdennour Seibi. "Combined Effect of Temperature and Soil Load on Buried HDPE Pipe." Advanced Materials Research 452-453 (January 2012): 1169–73. http://dx.doi.org/10.4028/www.scientific.net/amr.452-453.1169.

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HDPE pipes，mostly buried underground, have been widely used in industry. Much research has been done on pipe property changing with time or temperature. But thermal expansion of pipe was neglected. This paper investigated the combined effect of soil load and temperature on HDPE pipe with introduction of thermal expansion. Stress and deflection variation with time of buried HDPE pipe were studied in ABAQUS. Result showed pipe temperature had great influence on buried HDPE pipe performance. Thermal stress was much larger than stress caused by soil load. And thermal expansion prevented pipe from deflecting due to soil load, which can protect HDPE pipe in applications.

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2

Rofooei, Fayaz Rahimzadeh, Himan Hojat Jalali, Nader Khajeh Ahmad Attari, Hadi Kenarangi, and Masoud Samadian. "Parametric study of buried steel and high density polyethylene gas pipelines due to oblique-reverse faulting." Canadian Journal of Civil Engineering 42, no. 3 (March 2015): 178–89. http://dx.doi.org/10.1139/cjce-2014-0047.

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A numerical study is carried out on buried steel and high density polyethylene (HDPE) pipelines subjected to oblique-reverse faulting. The components of the oblique-reverse offset along the horizontal and normal directions in the fault plane are determined using well-known empirical equations. The numerical model is validated using the experimental results and detailed finite element model of a 114.3 mm (4″) steel gas pipe subjected to a reverse fault offset up to 0.6 m along the faulting direction. Different parameters such as the pipe material, the burial depth to the pipe diameter ratio (H/D), the pipe diameter to wall thickness ratio (D/t), and the fault–pipe crossing angle are considered and their effects on the response parameters are discussed. The maximum and minimum compressive strains are observed at crossing angles of 30° and 90°, respectively. It is found that the dimensionless parameters alone are not sufficient for comparison purposes. Comparing steel and HDPE pipes, it is observed that HDPE pipes show larger compressive strains due to their lower strength and stiffness. For both steel and HDPE pipes, peak strains increase with increasing D/t and H/D ratio for a constant pipe diameter and fault offset. For a given H/D ratio, compressive strains increase with increasing D/t ratio in HDPE pipes, while in steel pipes considered in this study, this effect is negligible. Finally, the peak strains of the pipes are compared to those suggested by Canadian Standard Association for Oil and Gas Pipeline System, CSA Z662.

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3

Qi, Fang Juan, Li Xing Huo, You Feng Zhang, and Hong Yang Jing. "Study on Fracture Properties of High-Density Polyethylene (HDPE) Pipe." Key Engineering Materials 261-263 (April 2004): 153–58. http://dx.doi.org/10.4028/www.scientific.net/kem.261-263.153.

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Butt-fusion welding is the main technology to join high-density polyethylene (HDPE) plastic pipes, which are widely used in transport the water, gas and corrosive liquid. Investigation shows that one of the failure modes of HDPE pipe is the crack slowly grows across the thick direction and leads to failure at last, so that it is very important to study the resistance to crack initiation of HDPE pipe and its butt-fusion welded joint. In this study, the elastic-plastic fracture mechanics parameter, crack opening displacement (COD) is used to describe the fracture initiation behaviors for the HDPE materials and its butt-fusion welded joints. The resistance to initiation fracture of HDPE pipe materials and butt-fusion welded joints were investigated at different temperature by using multiple specimen resistance curve method and silicon-rubber replica method. The results show that saturation initial crack COD- δis of HDPE pipe materials and butt-fusion welded joints decreases with the decreasing temperature. The δis of butt-fusion welded joints is lower than that of HDPE pipe materials. Investigation also proved that the silicon-rubber replica method is more suitable for HDPE engineering material than the multiple specimen method. At the same time the statistic distribution of the δis of HDPE butt-fusion welded joint was conducted. The results show that the value of the δis has the statistic variance inherently. The optimum fitting distribution of COD is Weibull distribution with three parameters.

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Yang, Hong Wei, Shi Liang Yang, Chao Wu, Yi Wei Fei, and Xian Yong Wei. "The Applications of Direct Fluorinated HDPE in Oil & Gas Storage and Transportation." Advanced Materials Research 328-330 (September 2011): 2436–39. http://dx.doi.org/10.4028/www.scientific.net/amr.328-330.2436.

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Characteristics of elemental fluorine and carbon-fluorine bonds were analyzed. The barrier and oil-resistance properties of direct fluorination of HDOE were unveiled from molecule structure. The HDPE surface fluorination results in the increase of surface energy, cross link to some extent and shrinkage of polymer free volume.The application of direct fluorination of HDPE in oil in oil ＆ gas storage and transportation fields were reviewed, including oil and gas pipe,plastic petrol-tanks and HDPE impermeable membrane applied in oil tank foundation. After direct fluorination processing, the anti-corrosion and the permeability to hydrocarbons of HDPE pipes are strengthened. With the development of technology, it will be the trend that the multi-layer fuel tanks replace the single layer fuel tanks. The HDPE is applied as the outermost layer of multi-layer structure to ensure the processing property and the impact resistance in low temperature.

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5

Majid, F., and M. Elghorba. "Critical lifetime of HDPE pipes through damage and reliability models." Journal of Mechanical Engineering and Sciences 13, no. 3 (September 26, 2019): 5228–41. http://dx.doi.org/10.15282/jmes.13.3.2019.02.0428.

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Damage models are not directly applicable on high-density polyethylene (HDPE) pipes. In this paper, static and strain-unified theory damage models are adapted to fit the HDPE case by substituting the dynamic tests’ endurance limits by preloading simulation through notch and stiffness evaluation. Then, tensile and burst tests are following up to evaluate the specimens’ residual life. Compared to virgin specimens, the rupture limit of old HDPE pipes’ specimens had dropped significantly and their elongation decreased from 275 mm to about 26 mm. The degradation of the seven categories of specimens are different. Indeed, the degradation is too noticeable, disappearance of the plastic phase, for the categories 6 and 7, which are in the bottom of the pipe. Then, a reduced plastic phase on the lateral categories 4 and 5 showing an important impact of degradations. Finally, a larger plastic phase for the categories 1 and 2 taken from the top of the pipe, showing a medium impact of degradation. Thus, the use of the stiffness factor, reflecting the variability of degradation of the different categories of specimens, and the thickness reduction as life fractions for both aged and neat HDPE specimens was possible. The developed strains damage model compared to static burst pressures’ one confirmed the damage stages and the critical life fraction of HDPE pipes. By comparing these models, the drastic change of HDPE pipes’ behavior, from a ductile to a brittle one, have been proved. These findings allowed us to find out the critical life fraction of neat and old HDPE pipes, which has been confirmed by comparing the burst pressure curves of a notched and an old pipe. The presented approach is cost effective allowing a deep analysis of HDPE pipes failure and damage quantification through simply made models based on static tensile and burst test instead of tedious and very costly dynamic ones.

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6

Zhang, Chuntao, and Ian D. Moore. "Nonlinear Finite Element Analysis for Thermoplastic Pipes." Transportation Research Record: Journal of the Transportation Research Board 1624, no. 1 (January 1998): 225–30. http://dx.doi.org/10.3141/1624-26.

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Thermoplastic pipes are being used increasingly for water supply lines, storm sewers, and leachate collection systems in landfills. To facilitate limit states design for buried polymer pipes, nonlinear constitutive models have recently been developed to characterize the highly nonlinear and time-dependent material behavior of high-density polyethylene (HDPE). These models have been implemented in a finite element program to permit structural analysis for buried HDPE pipes and to provide information regarding performance limits of the structures. Predictions of HDPE pipe response under parallel plate loading and hoop compression in a soil cell are reported and compared with pipe response measured in laboratory tests. Effects on the structural performance of pipe material nonlinearity, geometrical nonlinearity, and backfill soil properties were investigated. Good correlations were found between the finite element predictions and the experimental measurements. The models can be used to predict pipe response under many different load histories (not just relaxation or creep). Work is ongoing to develop nonlinear constitutive models for polyvinylchloride and polypropylene to extend the predictive capability of the finite element model to these materials.

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7

Lapos, B. M., R. W. I. Brachman, and I. D. Moore. "Response to overburden pressure of an HDPE pipe pulled in place by pipe bursting." Canadian Geotechnical Journal 44, no. 8 (August 2007): 957–65. http://dx.doi.org/10.1139/t07-036.

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Measurements of vertical and horizontal pipe deflections are reported for a high-density polyethylene (HDPE) pipe experiencing an increase in vertical pressure after being pulled in place using pipe bursting techniques. Three tests were conducted to measure the diameter change of a 165 mm outside diameter HDPE pipe after replacing an intact clay pipe with an external diameter of 184 mm backfilled with a poorly graded dense sand. A fourth test measured the response of the HDPE pipe after replacing an intact clay pipe with an external diameter of 128 mm. Variable pipe deflections were measured in each test, which depended on the interactions among the broken clay pipe fragments surrounding the HDPE pipe. The orientation of the clay fragments controls whether the increase in vertical pressure is transferred immediately to the HDPE pipe. In some cases, the fractured clay pipe produced a structural ring encasing the HDPE pipe, thus providing additional hoop strength. Two of the replacement tests did not record diameter changes until 100 kPa because of the interaction amongst the clay fragments. The upsize test and one replacement test recorded diameter changes from a vertical pressure of 20 kPa, because there were no interactions observed among the clay fragments.

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Li, Bai-jian, Liang-sheng Zhu, and Xin-sha Fu. "Investigation of the Load-Sharing Theory of the RC Pipes Rehabilitated with Slip Liners." Advances in Civil Engineering 2019 (April 10, 2019): 1–8. http://dx.doi.org/10.1155/2019/9594379.

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Slip-lining is a preferred rehabilitation approach in the departments of transportation in China. Although the method is the most common rehabilitation technique, few research studies have been conducted on the mechanical behavior of a rehabilitated reinforced concrete pipe (RCP). A series of experiments were conducted on RCPs rehabilitated with a corrugated steel pipe (CSP), a steel pipe, a high-density polyethylene (HDPE) pipe, and a shape steel bracket. The RCP rehabilitated with the CSP showed an increase in both the load-carrying capacity (3.46 times greater than the RCP) and the stiffness (5.35 times greater than the RCP). The RCP rehabilitated with the steel pipe, HDPE pipe, and steel bracket exhibited an increase in the load-carrying capacity (1.23, 1.50, and 1.31 times greater than the RCP, respectively), and the stiffness of these three pipes was not markedly changed. The slip-lined pipe acts as a “pipe within a pipe” system. A “load-sharing” theory was proposed in this study and provides estimates of the load-carrying capacity of the slip-lined pipes.

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9

Mao, Feng, Say Kee Ong, and James A. Gaunt. "Modeling benzene permeation through drinking water high density polyethylene (HDPE) pipes." Journal of Water and Health 13, no. 3 (March 13, 2015): 758–72. http://dx.doi.org/10.2166/wh.2015.183.

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Organic compounds such as benzene, toluene, ethyl benzene and o-, m-, and p-xylene from contaminated soil and groundwater may permeate through thermoplastic pipes which are used for the conveyance of drinking water in water distribution systems. In this study, permeation parameters of benzene in 25 mm (1 inch) standard inside dimension ratio (SIDR) 9 high density polyethylene (HDPE) pipes were estimated by fitting the measured data to a permeation model based on a combination of equilibrium partitioning and Fick's diffusion. For bulk concentrations between 6.0 and 67.5 mg/L in soil pore water, the concentration-dependent diffusion coefficients of benzene were found to range from 2.0 × 10−9 to 2.8 × 10−9cm2/s while the solubility coefficient was determined to be 23.7. The simulated permeation curves of benzene for SIDR 9 and SIDR 7 series of HDPE pipes indicated that small diameter pipes were more vulnerable to permeation of benzene than large diameter pipes, and the breakthrough of benzene into the HDPE pipe was retarded and the corresponding permeation flux decreased with an increase of the pipe thickness. HDPE pipes exposed to an instantaneous plume exhibited distinguishable permeation characteristics from those exposed to a continuous source with a constant input. The properties of aquifer such as dispersion coefficients (DL) also influenced the permeation behavior of benzene through HDPE pipes.

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Li, Zheng, Hong Wu Zhu, Pin Xian Qiu, and Abdennour Seibi. "Analytical Method for Temperature Distribution in Buried HDPE Pipe." Advanced Materials Research 452-453 (January 2012): 1205–9. http://dx.doi.org/10.4028/www.scientific.net/amr.452-453.1205.

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HDPE pipes have been widely used in industry, which were mostly buried underground. Because of special material properties, which were affected by temperature, it is necessary to get the temperature profile of buried HDPE pipe. Most past solutions for temperature distribution in buried pipe were numerical ones. The aim of this paper was to present a simple analytical model under steady-state heat transfer condition with a new special heat transfer coefficient introduced. FEM method was used to check this model. The influences of fluid temperature, soil surface temperature and soil depth on pipeline temperature were also analyzed. The results showed a good agreement between the analytical model and FEM method. And fluid temperature in pipe was proved to be the key factor that affected the pipe temperature .

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Dissertations / Theses on the topic "HDPE Pipe"

1

Laidlaw, Trudy Carol. "Influence of local support on corrugated HDPE pipe." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ39844.pdf.

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2

Han, Xiao. "Critical Vertical Deflection of Buried HDPE Pipes." Ohio University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1490790838331014.

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3

Kastner, Robert Eugene Lee. "Structural performance of plastic pipe used for landfill leachate collection." Ohio : Ohio University, 1992. http://www.ohiolink.edu/etd/view.cgi?ohiou1172687975.

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4

Dickinson, A. J. "Examination of the effects of processing variables on the mechanical properties of HDPE." Thesis, Manchester Metropolitan University, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.376539.

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5

Chehab, Abdul Ghafar. "Time dependent response of pulled-in-place HDPE pipes." Thesis, Kingston, Ont. : [s.n.], 2008. http://hdl.handle.net/1974/1239.

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6

Ayche, Nadim S. "The Effect of High Density Polyethylene (HDPE) Pipe Profile Geometry on its Structural Performance." Ohio University / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1127140719.

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7

Keatley, David J. "Three-Dimensional Nonlinear Analysis of Deeply-Buried Corrugated Annular HDPE Pipe with Changes in Its Profile-Wall." Ohio University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1237230121.

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8

Shaheer, Muhammad. "Effects of welding parameters on the integrity and structure of HDPE pipe butt fusion welds." Thesis, Brunel University, 2017. http://bura.brunel.ac.uk/handle/2438/16919.

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Butt fusion welding process is an extensively used method of joining for high density polyethylene (HDPE) pipe. With the increasing number of HDPE resin and pipe manufacturers and the diversity of industries utilising HDPE pipes, a wide range of different standards have evolved to specify the butt fusion welding parameters with inspection and testing methods, to maintain quality and structural integrity of welds. There is a lack of understanding and cohesion in these standards for the selection of welding parameters; effectiveness, accuracy, and selection of the test methods and; correlation of the mechanical properties to the micro and macro joint structure. The common standards (WIS 4-32-08, DVS 2207-1, ASTM F2620, and ISO 21307) for butt fusion welding were used to derive the six welding procedures. A total of 48 welds were produced using 180 mm outer diameter SDR 11 HDPE pipe manufactured from BorSafe™ HE3490-LS black bimodal PE100 resin. Three short term coupon mechanical tests were conducted. The waisted tensile test was able to differentiate the quality of welds using the energy to break parameter. The tensile impact test due to specimen geometry caused the failure to occur in the parent material. The guided side bend specimen geometry proved to be too ductile to be able to cause failures. A statistical t-test was used to analyse the results of the short term mechanical tests. The circumferential positon of the test specimen had no impact on their performance. Finite element analysis (FEA) study was conducted for the long term whole pipe tensile creep rupture (WPTCR) test to find the minimum length of pipe required for testing based on pipe geometry parameters of outer diameter and SDR. Macrographs of the weld beads supplemented with heat treatment were used to derive several weld bead parameters. The FEA modelling of the weld bead parameters identified the length to be a key parameter and provided insight into the relationship between the geometry of the weld beads and the stresses in the weld region. The realistic bead geometry digitised using the macrographs contributed a 30% increase in pipe wall stress due to the stress concentration effect of the notches formed between the weld beads and the pipe wall. The circumferential position of the weld bead had no impact on the pipe wall stresses in a similar manner to the results of the different mechanical tests. IV Nanoindentation (NI) and differential scanning calorimetry (DSC) techniques were used to study the weld microstructure and variation of mechanical properties across the weld at the resolutions of 100 and 50 microns, respectively. NI revealed signature 'twin-peaks and a valley' distribution of hardness and elastic modulus across the weld. The degrees of crystallinity obtained from DSC followed the NI pattern as crystallinity positively correlates with the material properties. Both techniques confirm annealing of the heat affected zone (HAZ) material towards the MZ from the parent material. The transmission light microscopy (TLM) was used to provide dimensions of the melt zone (MZ) which displays an hour glass figure widening to the size of the weld bead root length towards the pipe surfaces. Thermal FEA modelling was validated using both NI and TLM data to predict the HAZ size. The HAZ-parent boundary temperature was calculated to be 105 ⁰C. The 1st contribution of the study is to prove the existence of a positive correlation between the heat input calculated from FEA and the energy to break values obtained from the waisted tensile test. The 2nd contribution providing the minimum length of pipe for WPTCR based on the pipe dimensions. The 3rd contribution is the recommendation for the waisted tensile test with the test using the geometry designed to minimise deformation of the loading pin holes. The 4th contribution related the weld bead parameters to pipe wall stresses and the effect of notches as stress concentrators. The 5th contribution is a new method of visualising a welding procedure that can be used to not only compare the welding procedures but also predict the size of the MZ and the HAZ. The 6th contribution of the study is the proposal of new weld bead geometry that consist of the MZ bounded by the HAZ, for butt fusion welded joints of HDPE pipes.

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Kolonko, Anna Magdalena. "Investigation into the mechanical performance of pipe grade HDPE with included silicon chips as a basis for future sensors." Thesis, University of Birmingham, 2012. http://etheses.bham.ac.uk//id/eprint/3477/.

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A possible way to continuously monitor the whole water distribution system is to equip pipes with many microsensors. If these sensors are to be integrated within the pipe walls, it is important to assess their impact on the structural integrity of the pipes. In order to test a large number of samples, small polyethylene samples were produced using compression moulding and tested in different stress modes such as tension, bending, Charpy impact and flexural creep, with respect to different chip sizes (4 and 16mm\(^²\)), shapes (circle and square), numbers (one and two), orientations and position as well as sample dimensions and chip-polyethylene interface. It was discovered that the square chip contributes to the highest increase in the polymer stiffness, but significantly reduces its ductility. The 4mm\(^²\) circle causes the smallest disruption in the polymer integrity, especially when including multiple chips and when there is no adhesion. It significantly improves the impact resistance, while its effect in the short and long term bending stress modes is insignificant. The 16mm\(^²\) circle perpendicular to the load direction failed in bending at large strains. The optimal chip orientation for improving the impact strength and reducing the embrittlement effect in tension is parallel to the applied load.

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Al-Shamrani, Abdoul Ali. "Characterization, optimization and modelling of PE blends for pipe applications." Thesis, Loughborough University, 2010. https://dspace.lboro.ac.uk/2134/6019.

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Bimodal polyethylene resins are frequently used for pipe applications. In this work, blending was used to produce polyethylenes with comparable properties, particularly with respect to processing, stress crack resistance and tensile properties. Suitable blend components were identified, and their performance screened used ECHIP experimental design software. Blends were characterized using gel permeation chromatography (GPC), differential scanning calorimetry (DSC), tensile testing, stress crack resistance measurements, impact toughness testing, capillary rheometry and melt index measurements. GPC, DSC and melt index results reveal that the method of meltcompounding produced morphologically uniform blends, with different degrees of compatibility depending on the type and level of branching of blend components. Most of the blends produced showed higher crystallinity values compared to a reference bimodal resin. Binary high density polyethylene (HDPE) blends showed better stiffness and strength properties, whereas metallocene catalyzed linear low density polyethylene (mLLDPE) containing blends illustrated superior elongation and toughness properties compared to the reference polymer and other binary blends. The highest resistance to slow crack growth (SCG) was shown by low density polyethylene (LDPE) and mLLDPE containing blends due to their high branching content. The overall blend resistance to SCG or toughness can be enhanced with levels less than 20% by weight of LDPE or mLLDPE in the blend although the tensile properties are relatively unaffected at these low concentrations. The performance of blends was optimized by changing component polymers and their weight fractions, and a model to predict optimum blends was developed using the Maple code. Optimized blends showed higher branching content, comparable molecular weight, molecular weight distribution, tensile properties, viscosity and processing behaviour to the reference polymer. Optimized blend 3, in particular, encountered the same degree of shear thinning as the reference material. Better toughness and resistance to SCG were shown by the optimized blends when compared to the reference polymer.

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Books on the topic "HDPE Pipe"

1

Hsuan, Y. G. HDPE pipe: Recommended material specifications and design requirements. Washington, DC: National Academy Press, 1999.

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2

Anderson, Keith W. ADS HDPE sewer pipe: I-90 Third Lake Washington Bridge maintenance facility. [Olympia, Wash.]: Washington State Dept. of Transportation, 1994.

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Book chapters on the topic "HDPE Pipe"

1

Morton-Jones, David H., and John W. Ellis. "Chemical Effluent Pipe in HDPE." In Polymer Products, 270–94. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-4101-4_24.

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Guidara, M. A., M. A. Bouaziz, M. Dallali, C. Schmitt, E. Haj Taieb, and Z. Azari. "HDPE Pipe Failure Analysis Under Overpressure in Presence of Defect." In Design and Modeling of Mechanical Systems—III, 1027–38. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-66697-6_101.

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Bouaziz, Mohamed Ali, Mohamed Amine Guidara, Christian Schmitt, Julien Capelle, Ezzdine Haj Taieb, Zitounie Azari, and Said Hariri. "Failure Analysis of HDPE Pipe for Drinking Water Distribution and Transmission." In Design and Modeling of Mechanical Systems - II, 407–14. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-17527-0_41.

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4

Akınay, Emre, and Havvanur Kılıç. "Improving the Behavior of Buried HDPE Pipe by Using EPS Geofoam." In 5th International Conference on Geofoam Blocks in Construction Applications, 129–47. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-78981-1_11.

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Zhou, Min, Yanjun Du, and Fei Wang. "Earth Pressures of the Buried HDPE Pipe Subjected to Ground Subsidence." In Environmental Vibrations and Transportation Geodynamics, 361–67. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4508-0_34.

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Krishna Madhavi, S., N. S. V. N. Hanuman, and R. Umamaheswara Rao. "Regression Model Developed Using RSM for Predicting Withstanding Pressure of HDPE Pipe During Extrusion Process." In Lecture Notes on Multidisciplinary Industrial Engineering, 177–85. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-7643-6_14.

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Bouaziz, M. A., M. A. Guidara, M. Dallali, C. Schmitt, E. Haj Taieb, and Z. Azari. "Collapse Analysis of Longitudinally Cracked HDPE Pipes." In Design and Modeling of Mechanical Systems—III, 559–68. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-66697-6_54.

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Ruiz, René Autrique, and Eduardo Antonio Rodal Canales. "Laboratory Study of Fatigue in Water Conveying HDPE and PVC Pipes Subject to Extreme Hydraulic Transient Pressures." In Proceedings of the 17th International Conference on New Trends in Fatigue and Fracture, 129–38. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-70365-7_15.

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"High Density Polyethylene (HDPE) Pressure Pipe." In Pipelines for Water Conveyance and Drainage, 47–53. Reston, VA: American Society of Civil Engineers, 2013. http://dx.doi.org/10.1061/9780784412749.ch06.

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Lasheen, A., and M. A. Polak. "Predicting the behaviour of HDPE pipes in horizontal directional drilling." In Underground Infrastructure Research, 31–36. CRC Press, 2020. http://dx.doi.org/10.1201/9781003077480-5.

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Conference papers on the topic "HDPE Pipe"

1

Watkins, Reynold King. "Pipe and Soil Mechanics for Buried Corrugated HDPE Pipe." In Pipeline Division Specialty Congress 2004. Reston, VA: American Society of Civil Engineers, 2004. http://dx.doi.org/10.1061/40745(146)69.

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Zhou, Z. Jimmy. "HDPE Cooling Water Pipe for Power Generation." In ASME 2011 Power Conference collocated with JSME ICOPE 2011. ASMEDC, 2011. http://dx.doi.org/10.1115/power2011-55338.

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Cooling water pipe systems are a critical part of a power generation plant. If the cooling water pipe fails, the whole plant may shut down. Due to its high tensile strength steel pipe has been used for cooling water pipe since the beginning of power generation. High density polyethylene (HDPE) has emerged as a reliable and sustainable replacement for steel pipe primarily due to its corrosion resistance. The Hazen-Williams C-factor of steel pipe decreases during the service period because of corrosion and buildup while HDPE pipe has a stable C-factor. The build up inside steel pipe reduces not only the C-factor but also the inside diameter. Steel pipe may fail in the ductile mode as a result of corrosion-related pipe strength reduction combined with the pressure surge related to the reduction of inside diameter. Ductile failure is not observed in the field for HDPE pipe. HDPE pipe is virtually maintenance-free while corrosion protection measures are used for steel pipe. HDPE pipe has advantage over metal pipe in total life cycle costs including material, installation, maintenance, and replacement costs. With these outstanding performance attributes, HDPE pipe has been used in power plants over the last 15 years to transport cooling water pipe for non-safety related applications. In November 2008, Ameren’s Callaway Nuclear Power Plant successfully completed the installation of a 36″ HDPE cooling water pipe system; the first safety related HDPE water pipe in North America for the ASME category 3 cooling pipe application. This safety related PE 4710 cooling water pipe has delivered exceptional performance since its installation.

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3

Stakenborghs, Robert, and Jack Little. "Microwave Based NDE Inspection of HDPE Pipe Welds." In 17th International Conference on Nuclear Engineering. ASMEDC, 2009. http://dx.doi.org/10.1115/icone17-75742.

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This paper describes an innovative apparatus and method that has been developed to volumetrically examine dielectric materials, including high density polyethylene piping fusion joints. The method employs a first of a kind apparatus that is based on the creation of an image using electromagnetic energy in the microwave frequency range. The results of comprehensive laboratory testing and actual field inspection of HDPE thermal fusions using the microwave method and apparatus are presented. The specimens examined included both sound thermal fusions and those that included different types of internal flaws that commonly occur in industrial application. Through this research and field application, the apparatus has been shown capable of detecting the presence of internal flaws, such as lack of fusion (i.e. - cold fusion) and inclusions. Also, thickness changes and voids in the HDPE pipe base material were detected and imaged. The results of the NDE technique are compared to mechanical pull test validation. Finally, the scan images of the PE pipe thermal fusions are compared to theoretical fusion microstructure. Relationships between the HDPE fusion images and the basic fusion microstructure are developed.

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Khalifa, M., T. Ased, and A. Abuajila. "HDPE High-Density Polyethylene Pipe Systems Welding Process." In MS&T17. MS&T17, 2017. http://dx.doi.org/10.7449/2017/mst_2017_995_1000.

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Khalifa, M., T. Ased, and A. Abuajila. "HDPE High-Density Polyethylene Pipe Systems Welding Process." In MS&T17. MS&T17, 2017. http://dx.doi.org/10.7449/2017mst/2017/mst_2017_995_1000.

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Howard, Amster, and Camille Rubeiz. "2020 Second Edition of AWWA M55 HDPE Pipe." In Pipelines 2020. Reston, VA: American Society of Civil Engineers, 2020. http://dx.doi.org/10.1061/9780784483213.031.

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Grafenauer, Todd, Mohammad Najafi, Tom Sangster, and Lawrence M. Slavin. "Repair of In-Service HDPE Water Distribution Pipe." In Pipelines 2014. Reston, VA: American Society of Civil Engineers, 2014. http://dx.doi.org/10.1061/9780784413692.115.

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Gonzalez, Marco, Raul Machado, and Jeanette Gonzalez. "Fatigue Analysis of PE-100 Pipe Under Axial Loading." In ASME 2011 Pressure Vessels and Piping Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/pvp2011-57631.

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In this paper, an experimental analysis for determining the fatigue strength of PE-100, one of the most used High Density Polyethylene (HDPE) materials for pipes, under cyclic axial loadings is presented. HDPE is a thermoplastic material used for piping systems, such as natural gas distribution systems, sewer systems and cold water systems, becoming in a good alternative to metals, as cast iron or carbon steel. One of the causes for failures of HDPE pipes is fatigue, due to pipes are under cyclic loading, such as internal pressure, weight loads or external loadings on buried pipes, which generate stress in different directions: circumferential, longitudinal and radial. HDPE pipes are fabricated using an extrusion process, which generates anisotropic properties. By testing in the Laboratory a series of identical specimens obtained directly from PE-100 HDPE pipes in longitudinal and circumferential directions, the relationships between amplitude stress and number of cycles (S-N curves) for two values of test frequency (2 and 5 Hz.) and stress ratio (R = 0.0 and R = 0.5), are established. For each case, three sets of survival probability data (90%, 50% and 10%) and coefficients of Basquin’s equation for the Ps = 50% curves, were obtained. The results obtained are in good agreement with the literature results, showing that stress direction in the pipe, tests frequency and stress ratio affect the fatigue strength of HDPE grade PE-100 pipes.

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Long, Wes. "Advanced Applications for HDPE Pipe With New PE-RT Material." In ASME 2017 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/pvp2017-65224.

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Canfor, a producer of lumber, pulp and paper needed a solution to replace aging 30-inch (760mm) fiberglass reinforced pipe. A new PE-RT product now expands PE into industrial applications requiring resistance to high temperatures and having a Hydrostatic Design Basis (HDB) of 800psi (55 bar) at 180°F (82.2°C). Through chemical processes, Canfor cooks, washes, and extracts pulp fiber from wood that results in both acidic and caustic effluent with temperatures normally in the 50–60°C range or as high as 70–75°C. Traditional fiberglass pipes have experienced repeated joint failures over time, whereas heat-fused HDPE pipe provides solutions reducing unnecessary maintenance and a longer service life. Standard PE4710 High Density Polyethylene Pipes (HDPE) have pressure ratings limited to 140°F (60°C) and are not normally acceptable for such high temperature acidic and caustic effluent. Additionally, the potential for higher oxidation-reduction potential (ORP) from residual chlorine levels and bleaching also justified turning to a different material based on the potential oxidative attack at high temperatures. The new PE-RT resin protects against oxidative attacks at high temperatures and the flexible heat-fused HDPE pipe provides considerable cost savings during installation. Compared to fiberglass, up to eight 40-foot lengths of HDPE pipe can be joined by heat fusion per day, whereas only two 6-meter (20-foot) lengths of FRP pipe can be wrapped per day. The presentation will highlight photos during the installation process and report the advantages of using the new pipe material. This project provides reference for expanding HDPE pipe into new applications using PE-RT materials.

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Petroff, Larry J. "Occasional and Recurring Surge Design Considerations for HDPE Pipe." In Pipelines 2013. Reston, VA: American Society of Civil Engineers, 2013. http://dx.doi.org/10.1061/9780784413012.014.

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