The Fatigue Response of Polyvinyl Chloride and Polyethylene Pipe Systems

2009 ◽  
pp. 101-101-21 ◽  
Author(s):  
Jeremy A. Bowman
Keyword(s):  
Polyvinyl Chloride ◽  
Polyethylene Pipe ◽  
Pipe Systems

Fatigue properties of high density polyethylene pipe systems

1980 ◽  
Vol 15 (1) ◽  
pp. 265-268 ◽  
Author(s):  
M. B. Barker ◽  
J. Bowman ◽  
M. Bevis
Keyword(s):  
High Density Polyethylene ◽  
High Density ◽  
Fatigue Properties ◽  
Polyethylene Pipe ◽  
Pipe Systems

Methods to experimentally control waterlogging and measure soil oxygen in field trials

Soil Research ◽  
1986 ◽  
Vol 24 (4) ◽  
pp. 477 ◽  
Author(s):  
Lennard EG Barrett ◽  
PD Leighton ◽  
IR Mcpharlin ◽  
T Setter ◽  
H Greenway
Keyword(s):  
Hydraulic Conductivity ◽  
Soil Water ◽  
Polyvinyl Chloride ◽  
Water Flow ◽  
Soil Surface ◽  
Field Trials ◽  
Loamy Sand ◽  
Soil Oxygen ◽  
Polyethylene Pipe ◽  
A Site

A method is described for the establishment of controlled waterlogging events in the field. Special plots were constructed at a site with a loamy sand overlying an indurated siliceous pan of low hydraulic conductivity. The plots were isolated from lateral water flow with polyvinyl chloride sheeting, and were either waterlogged or drained by sub-irrigation or drainage through slotted polyethylene pipe buried 0.45 m below the soil surface. In a test of the plots, waterlogging was imposed for 26 days. Samples of soil water were removed from waterlogged plots for the measurement of oxygen. Concentrations of oxygen rapidly decreased after the commencement of waterlogging, but increased again after drainage.

A Replica Technique for the Inside Surfaces of Small Diameter Pipes and Tubes

1967 ◽  
Vol 25 ◽  
pp. 352-353
Author(s):  
T. G. Gregory
Keyword(s):  
Polyvinyl Chloride ◽  
Small Diameter ◽  
Replica Technique ◽  
Tube Size ◽  
Inside Diameter ◽  
Complete Inspection ◽  
Operating Limits

A nondestructive replica technique permitting complete inspection of bore surfaces having an inside diameter from 0.050 inch to 0.500 inch is described. Replicas are thermally formed on the outside surface of plastic tubing inflated in the bore of the sample being studied. This technique provides a new medium for inspection of bores that are too small or otherwise beyond the operating limits of conventional inspection methods.Bore replicas may be prepared by sliding a length of plastic tubing completely through the bore to be studied as shown in Figure 1. Polyvinyl chloride tubing suitable for this replica process is commercially available in sizes from 0.037- to 0.500-inch diameter. A tube size slightly smaller than the bore to be replicated should be used to facilitate insertion of the plastic replica blank into the bore.

AUTOMATED CHARGING OF EMBEDDED HEAT PIPE SYSTEMS

2012 ◽  
Vol 3 (2-4) ◽  
pp. 233-245
Author(s):  
Wessel W. Wits ◽  
Johannes van Es ◽  
Gert Jan te Riele
Keyword(s):  
Heat Pipe ◽  
Pipe Systems
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