Dynamic creep buckling of viscoelastic columns with large deformations and follower loads: Failure probabilities and survival times

Harry H. Hilton, Mohamed Achour

Research output: Contribution to journalConference articlepeer-review

Abstract

Analytical results indicate that large deflection linearly viscoelastic columns with quasi-static follower loads under quasi-static conditions exhibit smaller deflections, smaller probabilities of failure and longer survival times than identical columns under the same loads but with dynamic effects caused solely by creep included. Column end shortening due to both curvature and compressive loads is also taken into account and the governing coupled nonlinear differential equations are solved numerically. The effects of end shortening on elastic and viscoelastic columns are discussed. Probabilistic column survivability due to creep buckling and material failure (delamination) are examined in detail.

Original languageEnglish (US)
Pages (from-to)4696-4706
Number of pages11
JournalCollection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Volume6
DOIs
StatePublished - 2003
Event44th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference - Norfolk, VA, United States
Duration: Apr 7 2003Apr 10 2003

Keywords

  • Buckling
  • Columns
  • Creep
  • Delamination
  • Failure probabilities
  • Follower loads
  • Material damping
  • Survival times
  • Viscoelasticity

ASJC Scopus subject areas

  • Architecture
  • General Materials Science
  • Aerospace Engineering
  • Mechanics of Materials
  • Mechanical Engineering

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