Effect of inclusion size and location on PE pipe lifetime

Byoung Ho Choi, Alexander Chudnovsky, Kalyan Sehanobish

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


Understanding the slow crack growth (SCG) in engineering materials is very important for the prediction of the lifetime of structures. There are many empirical and theoretical approaches to modeling of SCG. However, there are many factors controlling SCG and structural lifetime such as, as basic material properties, residual stresses, the size and location of the crack origin, the load level and rate, temperature, structure geometry, and so on. Therefore, for engineering plastics it is difficult to predict, the SCG behavior on phenomenological ground. Understanding of fracture mechanism(s), and employment of fundamental science in modeling is required in studies of SCG. In this paper, the numerical algorithm and analysis of SCG is proposed based on Crack Layer (CL) theory. In addition, the time of SCG in HDPE pipe is modeled and compared with experimental data for various stress level. The effect of the crack origin (inclusion) size and location on the lifetime of PE pipes is analyzed using the numerical technique.

Original languageEnglish
Title of host publicationSociety of Plastics Engineers Annual Technical Conference
Subtitle of host publicationPlastics Encounter at ANTEC 2007, Conference Proceedings
Number of pages5
Publication statusPublished - 2007
Externally publishedYes
EventSociety of Plastics Engineers Annual Technical Conference: Plastics Encounter at ANTEC 2007 - Cincinnati, OH, United States
Duration: 2007 May 62007 May 11

Publication series

NameAnnual Technical Conference - ANTEC, Conference Proceedings


OtherSociety of Plastics Engineers Annual Technical Conference: Plastics Encounter at ANTEC 2007
Country/TerritoryUnited States
CityCincinnati, OH

ASJC Scopus subject areas

  • General Chemical Engineering
  • Polymers and Plastics


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