A Probabilistic Study of the Influence of Hanger Alignment on the Reliability of Refractory Furnace Roof Anchors

Albert Eliot Segall, D. L. Shelleman, M. J. Pan, R. A. Landy, B. R. Nelson

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A probabilistic fracture methodology was applied to an analysis of refractory anchors used for furnace roof construction. Initially, strength data were obtained from modulus of rupture (MOR) specimens machined from refractory anchors composed of three different materials. For all of the fracture strength tests, the tension side of the MOR specimens was always taken from the as-pressed/fired surface of a sectioned anchor to ensure that the resulting data accurately reflected the strength of the as-used materials. The resulting Weibull data were then used in conjunction with a finite-element stress analysis and probabilistic reliability assessment to determine the influence of the alignment of the metal hangers used to secure the anchors. While all three materials exhibited a vulnerability to brittle fracture under the applied loads, the risk was clearly the highest when the metal hanger was not properly aligned and loads therefore not properly distributed over the entire contact region.

Original languageEnglish (US)
Pages (from-to)138-143
Number of pages6
JournalJournal of Testing and Evaluation
Volume26
Issue number2
StatePublished - Mar 1998

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Anchors
Refractory materials
Roofs
Furnaces
Metals
Brittle fracture
Stress analysis
Fracture toughness

All Science Journal Classification (ASJC) codes

  • Materials Science (miscellaneous)

Cite this

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title = "A Probabilistic Study of the Influence of Hanger Alignment on the Reliability of Refractory Furnace Roof Anchors",
abstract = "A probabilistic fracture methodology was applied to an analysis of refractory anchors used for furnace roof construction. Initially, strength data were obtained from modulus of rupture (MOR) specimens machined from refractory anchors composed of three different materials. For all of the fracture strength tests, the tension side of the MOR specimens was always taken from the as-pressed/fired surface of a sectioned anchor to ensure that the resulting data accurately reflected the strength of the as-used materials. The resulting Weibull data were then used in conjunction with a finite-element stress analysis and probabilistic reliability assessment to determine the influence of the alignment of the metal hangers used to secure the anchors. While all three materials exhibited a vulnerability to brittle fracture under the applied loads, the risk was clearly the highest when the metal hanger was not properly aligned and loads therefore not properly distributed over the entire contact region.",
author = "Segall, {Albert Eliot} and Shelleman, {D. L.} and Pan, {M. J.} and Landy, {R. A.} and Nelson, {B. R.}",
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A Probabilistic Study of the Influence of Hanger Alignment on the Reliability of Refractory Furnace Roof Anchors. / Segall, Albert Eliot; Shelleman, D. L.; Pan, M. J.; Landy, R. A.; Nelson, B. R.

In: Journal of Testing and Evaluation, Vol. 26, No. 2, 03.1998, p. 138-143.

Research output: Contribution to journalArticle

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