Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/58772
Title: Tensile and pressure rupture behaviour of flow-formed high density polyethylene pipes
Authors: Teoh, S.H. 
Ong, E.H. 
Keywords: flow-forming
polyethylene
tensile properties
Issue Date: Jan-1995
Source: Teoh, S.H.,Ong, E.H. (1995-01). Tensile and pressure rupture behaviour of flow-formed high density polyethylene pipes. Polymer 36 (1) : 101-107. ScholarBank@NUS Repository.
Abstract: Structurally altered high density polyethylene pipes were produced by flow-forming, a point rotary cold rolling process. The process was performed by using three rollers on a conventional lathe machine. The variation of mechanical and pressure rupture properties (tensile strength, yield strain, toughness and hoop stress) with percentage reduction was studied. The stress-strain behaviour of the flow-formed pipe exhibited less yielding and cold drawing as percentage reduction increased. Significant increase in the tensile strength was observed for reductions above 20%. Improvement (exceeding 300%) of toughness was observed in the axial and hoop direction. Pressure rupture tests revealed that the hoop stress of the flow-formed pipes increased only after 50% reduction. Both tensile and pressure rupture tests revealed that the ductility also increased with percentage reduction. This was well demonstrated by the extensive bulging during pressure rupture tests. Scanning electron micrographs revealed a significant amount of structually altered macrofibrils in the flow-formed pipe. © 1995.
Source Title: Polymer
URI: http://scholarbank.nus.edu.sg/handle/10635/58772
ISSN: 00323861
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

Page view(s)

30
checked on Dec 15, 2017

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.