Evaluation of the crack initiation characteristics of pipe grade polyethylene under fatigue loads

Byoung-Ho Choi, Yongjian Zhao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Recently, a circular notched specimen (CNS) is selected for studying the crack initiation characteristics of pipe grade polyethylene as a part of understanding quasi-brittle failure. In this study, four types of pipe grade polyethylene were chosen and tested under variable fatigue loading conditions using CNS with various notch depths. The fatigue characteristics of four polyethylenes were evaluated, and the fracture surface of CNS after failure is analyzed by optical microscope and scanning electron microscope (SEM) to evaluate the fracture mechanism of pipe grade polyethylenes. In addition, the technical issues with CNS during tests were also investigated by finite element analysis.

Original languageEnglish
Title of host publicationAnnual Technical Conference - ANTEC, Conference Proceedings
Pages1397-1401
Number of pages5
Volume2
Publication statusPublished - 2010 Sep 23
Event68th Annual Technical Conference of the Society of Plastics Engineers 2010, ANTEC 2010 - Orlando, FL, United States
Duration: 2010 May 162010 May 20

Other

Other68th Annual Technical Conference of the Society of Plastics Engineers 2010, ANTEC 2010
CountryUnited States
CityOrlando, FL
Period10/5/1610/5/20

Keywords

  • Crack initiation
  • Fatigue
  • Fractograhy
  • Fracture mechanism
  • Polyethylene

ASJC Scopus subject areas

  • Polymers and Plastics
  • Chemical Engineering(all)

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  • Cite this

    Choi, B-H., & Zhao, Y. (2010). Evaluation of the crack initiation characteristics of pipe grade polyethylene under fatigue loads. In Annual Technical Conference - ANTEC, Conference Proceedings (Vol. 2, pp. 1397-1401)