Dynamic viscoelastic beam model for finite element method

Joseph J. Rencis, Sunil Saigal, Kwo Yih Jong

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

A finite element formulation is presented for the viscoelastic dynamic responses of Euler-Bernoulli beams. A time-stepping procedure based on Newmark’s method is employed. The changes in creep strain during a time step are treated as additional fictitious body forces for the next time step. A uniaxial Norton-type strain-hardening material law is employed. The aims of the proposed formulation are model simplicity, efficiency of the solution procedure, and ease of application. Quasi-static and dynamic viscoelastic responses for beams under quasistatic and earthquake motion are obtained. The results are compared with existing alternate solutions to demonstrate the validity of the present work.

Original languageEnglish (US)
Pages (from-to)19-29
Number of pages11
JournalJournal of Aerospace Engineering
Volume3
Issue number1
DOIs
StatePublished - Jan 1990
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Materials Science(all)
  • Aerospace Engineering
  • Mechanical Engineering

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