A simple method to estimate elastic follow-up factors for transient creep parameter C (t) under secondary stress

Jinho Je, Kukhee Lee, Yun Jae Kim, Dongwook Jerng

Research output: Contribution to journalReview article

6 Citations (Scopus)

Abstract

In this article, a semi-analytical method to estimate elastic follow-up factor as input to estimate the transient creep C(t) parameter under secondary loading is presented and validated against finite element results for a cracked two-bar structure under constant displacement loading. Predicted values of C(t) agree well with the finite element results for both elastic-creep cases and for elastic-plastic cases with the same creep and plastic hardening exponents. For elastic-plastic-creep cases with different creep and plastic hardening exponents, the proposed method gives good predictions at long time but can under- or over-predict C(t) at short time.

Original languageEnglish
Pages (from-to)336-346
Number of pages11
JournalJournal of Strain Analysis for Engineering Design
Volume51
Issue number5
DOIs
Publication statusPublished - 2016 Jul 1
Externally publishedYes

Keywords

  • C (t) integral
  • Crack
  • elastic follow-up
  • secondary stress
  • transient creep

ASJC Scopus subject areas

  • Modelling and Simulation
  • Mechanics of Materials
  • Mechanical Engineering
  • Applied Mathematics

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