Crack propagation in non-proportionally scaled elastic structures

Y. W. Mai, A. G. Atkins

Research output: Journal article publicationJournal articleAcademic researchpeer-review

13 Citations (Scopus)

Abstract

Scaling laws for load, stress, displacement and crack velocity are given for crack propagation in non-proportionally scaled elastic structures where the scaling factors for height, width, thickness and crack length can all be different. Problems are addressed where only one or two of the scaling factors are important, in contrast to geometrically similar scaling where all factors are equal. Examples discussed include pipelines and plate-like structures of ships or bridges. The conditions under which strength of materials design criteria, based on yielding, prove inadequate for such large structures are investigated. In addition, the validity of determining "brittle" fracture toughness by "equivalent energy" scaling procedures from small laboratory specimens is discussed.

Original languageEnglish
Pages (from-to)437-449
Number of pages13
JournalInternational Journal of Mechanical Sciences
Volume20
Issue number7
DOIs
Publication statusPublished - 1978
Externally publishedYes

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • General Materials Science
  • Condensed Matter Physics
  • Aerospace Engineering
  • Ocean Engineering
  • Mechanics of Materials
  • Mechanical Engineering
  • Applied Mathematics

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