IEEE task force report: Brittle fracture in nonceramic insulators

J. T. Burnham, Tony Baker, Al Bernstorf, Claude De Tourreil, Jean Marie George, Ravi Gorur, Ralf Hartings, Bob Hill, Arian Jagtiani, Terry McQuarrie, David Mitchell, Don Ruff, Herman Schneider, Dave Shaffner, Jennifer Yu, Jack Varner

Research output: Contribution to journalArticlepeer-review

64 Scopus citations


A description of the composite insulator brittle fracture phenomenon suitable to allow correct diagnosis of a failure is provided. This paper reports on the number of brittle fractures that have occurred around the world and contains specific empirical data surrounding composite insulator brittle fractures in the U.S. It also includes several case studies of in-service failures to inform the reader of the diversity of initiating causes. The current state-of-knowledge on the brittle fracture mechanism is presented. Based on what was learned during the study, possible actions that can be taken by manufacturers and users to reduce frequency of occurrence are suggested.

Original languageEnglish (US)
Pages (from-to)848-856
Number of pages9
JournalIEEE Transactions on Power Delivery
Issue number3
StatePublished - Jul 2002
Externally publishedYes


  • Brittle fracture
  • Energy dispersive X-ray (EDX)
  • Fiberglass rod
  • Insulator
  • Nonceramic
  • Scanning electron microscope (SEM)
  • Seal
  • Stress corrosion

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


Dive into the research topics of 'IEEE task force report: Brittle fracture in nonceramic insulators'. Together they form a unique fingerprint.

Cite this