Mixed mode energy release rate determination for delamination buckling using a crack tip element

Barry D. Davidson, Todd M. Krafchak

Research output: Contribution to journalConference article

1 Scopus citations

Abstract

One dimensional delamination buckling and growth is analyzed using closed form cylindrical buckling and crack tip element analyses. A cylindrical buckling analysis is utilized to determine the strains, curvatures, deflections, forces and moments in a buckled region bounded by the laminate free surface and a near-surface delamination. These results are used as input into a linear crack tip element analysis to obtain the total energy release rate and individual mode I and mode II components. Geometric nonlinearities are accounted for through the loading on the crack tip element. Total energy release rate and fracture mode ratio as found by this new technique are shown to agree with nonlinear finite element results.

Original languageEnglish (US)
Pages (from-to)1302-1309
Number of pages8
JournalCollection of Technical Papers - AIAA/ASME Structures, Structural Dynamics and Materials Conference
Issue numberpt 3
StatePublished - Jan 1 1993
Event34th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference - La Jolla, CA, USA
Duration: Apr 19 1993Apr 22 1993

ASJC Scopus subject areas

  • Architecture
  • Materials Science(all)
  • Aerospace Engineering
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Mixed mode energy release rate determination for delamination buckling using a crack tip element'. Together they form a unique fingerprint.

  • Cite this