Delamination growth and buckling in an orthotropic strip

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

This study presents an analytical solution to the problem of delamination growth and buckling in an orthotropic strip. Growth of an initially imperfect delamination located in the midplane of the strip is addressed when the applied stress is below the bifurcation point. The results for the buckling stress are also provided in the case of perfect delamination surfaces. Delamination growth and buckling is a commonly observed failure mode in laminated structures; this type of failure mode may cause structural degradation or stiffness reduction and leads ultimately to premature failure at stresses well below the design levels for an undamaged laminate. Under compression loading, the nature of the delamination response, which involves the interaction of delamination growth and buckling, is addressed by employing the governing equations of clastic stability under plane strain assumptions. Solutions to the problem of an orthotropic strip with a through-width delaminalion subjected to uniaxial compression are obtained by using mathematical techniques appropriate for mixed boundary value problems.

Original languageEnglish (US)
Pages (from-to)1773-1788
Number of pages16
JournalInternational Journal of Solids and Structures
Volume27
Issue number14
DOIs
StatePublished - 1991

Fingerprint

Delamination
buckling
Buckling
Strip
strip
failure modes
Failure Mode
Failure modes
plane strain
Compression
boundary value problems
laminates
stiffness
Mixed Boundary Value Problem
Laminates
Plane Strain
Bifurcation Point
degradation
Imperfect
Boundary value problems

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Delamination growth and buckling in an orthotropic strip. / Madenci, Erdogan.

In: International Journal of Solids and Structures, Vol. 27, No. 14, 1991, p. 1773-1788.

Research output: Contribution to journalArticle

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