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The vibrational response of and the acoustic radiation from thin-walled pipes, excited by random fluctuating pressure fields /Rennison, David Charles. January 1976 (has links) (PDF)
Thesis (Ph.D.) -- University of Adelaide, Department of Mechanical Engineering, 1978.
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On stresses and fatigue in flexible pipesSævik, Svein. January 1992 (has links)
Thesis (Doctoral Engineering)--Norwegian Institute of Technology, 1992. / Includes bibliographical references (p. 8.1-8.9).
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Finite element analysis of long-term performance of buried high density polyethylene pipesGondle, Raj Kumar. January 2006 (has links)
Thesis (M.S.)--West Virginia University, 2006. / Title from document title page. Document formatted into pages; contains x, 122 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 116-122).
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Experimental and theoretical analysis of the buried corrugated plastic pipeLiu, Xuegang January 1993 (has links)
No description available.
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A study of the combined socket and butt welding of plastic pipes using through transmission infrared weldingNo, Donghun 11 January 2005 (has links)
No description available.
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Accelerated Testing Method to Estimate the Lifetime of Polyethylene PipesKalhor, Roozbeh 26 June 2017 (has links)
The ability to quickly develop predictions of the time-to-failure under different loading levels allows designers to choose the best polymeric material for a specific application. Additionally, it helps material producers to design, manufacture, test, and modify a polymeric material more rapidly. In the case of polymeric pipes, previous studies have shown that there are two possible time-dependent failure mechanisms corresponding to ductile and brittle failure. The ductile mechanism is evident at shorter times-to-failure and results from the stretching of the amorphous region under loading and the subsequent plastic deformation. Empirical results show that many high-performance polyethylene (PE) materials do not exhibit the brittle failure mechanism. Hence, it is critical to understand the ductile mechanism and find an approach to predict the corresponding times-to-failure using accelerated means. The aim of this study is to develop an innovative rupture lifetime acceleration protocol for PE pipes which is sensitive to the structure, orientation, and morphology changes introduced by changing processing conditions. To accomplish this task, custom fixtures are developed to admit tensile and hoop burst tests on PE pipes. A pressure modified Eyring flow equation is used to predict the rupture lifetime of PE pipes using the measured mechanical properties under axial tensile and hydrostatic pressure loading in different temperatures and strain rates. In total, the experimental method takes approximately one week to be completed and allows the prediction of pipe lifetimes for service lifetime in excess of 50 years. / Master of Science
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