Fatigue crack propagation of PVC-U and PVC-M in water environment

The addition of impact modifiers such as CPE enhance the fracture toughness to PVC to the extent that higher design stresses can be applied to PVC-M pipes compared to PVC-U. However, the fatigue response of PVC-M and PVC-U has been reported to be ostensibly the same. In this work, the fatigue crack...

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Main Authors:	Whittle, Alan, Samat, Noorasikin, Hoffman, Mark, Burford, Robert
Format:	Conference or Workshop Item
Language:	English
Published:	2008
Subjects:	TP1080 Polymers, plastics and their manufacture
Online Access:	http://irep.iium.edu.my/2983/ http://irep.iium.edu.my/2983/ http://irep.iium.edu.my/2983/1/plastic_pipe.pdf

id	iium-2983
recordtype	eprints
spelling	iium-29832011-10-19T08:08:07Z http://irep.iium.edu.my/2983/ Fatigue crack propagation of PVC-U and PVC-M in water environment Whittle, Alan Samat, Noorasikin Hoffman, Mark Burford, Robert TP1080 Polymers, plastics and their manufacture The addition of impact modifiers such as CPE enhance the fracture toughness to PVC to the extent that higher design stresses can be applied to PVC-M pipes compared to PVC-U. However, the fatigue response of PVC-M and PVC-U has been reported to be ostensibly the same. In this work, the fatigue crack growth mechanism has been investigated to determine why enhancement of the toughness by the impact modifier does not simultaneously increase the fatigue resistance. It was shown that both PVC-U and PVC-M exhibit a fatigue threshold. For PVC-M the threshold was more sensitive to the testing environment than was PVC-U. The fatigue crack growth rate for both materials was shown to be lower in water than in air, especially at low stress intensity factor amplitudes. Hypotheses are given for the similarities and differences between the fatigue crack growth rates of PVC-U and PVC-M and why the performance is better in water than in air. 2008 Conference or Workshop Item NonPeerReviewed application/pdf en http://irep.iium.edu.my/2983/1/plastic_pipe.pdf Whittle, Alan and Samat, Noorasikin and Hoffman, Mark and Burford, Robert (2008) Fatigue crack propagation of PVC-U and PVC-M in water environment. In: Plastic Pipes XIV Conference, 22 - 24 September 2008, Budapest, Hungary. (Unpublished) http://www.ppxiv.com/
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TP1080 Polymers, plastics and their manufacture
spellingShingle	TP1080 Polymers, plastics and their manufacture Whittle, Alan Samat, Noorasikin Hoffman, Mark Burford, Robert Fatigue crack propagation of PVC-U and PVC-M in water environment
description	The addition of impact modifiers such as CPE enhance the fracture toughness to PVC to the extent that higher design stresses can be applied to PVC-M pipes compared to PVC-U. However, the fatigue response of PVC-M and PVC-U has been reported to be ostensibly the same. In this work, the fatigue crack growth mechanism has been investigated to determine why enhancement of the toughness by the impact modifier does not simultaneously increase the fatigue resistance. It was shown that both PVC-U and PVC-M exhibit a fatigue threshold. For PVC-M the threshold was more sensitive to the testing environment than was PVC-U. The fatigue crack growth rate for both materials was shown to be lower in water than in air, especially at low stress intensity factor amplitudes. Hypotheses are given for the similarities and differences between the fatigue crack growth rates of PVC-U and PVC-M and why the performance is better in water than in air.
format	Conference or Workshop Item
author	Whittle, Alan Samat, Noorasikin Hoffman, Mark Burford, Robert
author_facet	Whittle, Alan Samat, Noorasikin Hoffman, Mark Burford, Robert
author_sort	Whittle, Alan
title	Fatigue crack propagation of PVC-U and PVC-M in water environment
title_short	Fatigue crack propagation of PVC-U and PVC-M in water environment
title_full	Fatigue crack propagation of PVC-U and PVC-M in water environment
title_fullStr	Fatigue crack propagation of PVC-U and PVC-M in water environment
title_full_unstemmed	Fatigue crack propagation of PVC-U and PVC-M in water environment
title_sort	fatigue crack propagation of pvc-u and pvc-m in water environment
publishDate	2008
url	http://irep.iium.edu.my/2983/ http://irep.iium.edu.my/2983/ http://irep.iium.edu.my/2983/1/plastic_pipe.pdf
first_indexed	2023-09-18T20:10:40Z
last_indexed	2023-09-18T20:10:40Z
_version_	1777407456352141312

Fatigue crack propagation of PVC-U and PVC-M in water environment

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