Abstract
In this paper, Δ-integral is used to analyze fatigue crack growth of viscoelastic material. Using analytical integral value, the -integral is calculated. So, reduction of calculation time and increase of accuracy are made possible. The stress intensity factor is calculated using the finite element method code. In difference with existed fatigue crack analysis using ΔK, we were successfully able to analyze various load amplitude and the fatigue crack of load cycle only with two fatigue crack growth parameters and creep compliance. The analysis gives curve for simulation of crack growth, and the curve almost corresponds with test results.
| Translated title of the contribution | Analysis of Fatigue Crack Growth in a Viscoelastic Material using Δ-Jintegral |
|---|---|
| Original language | Korean |
| Pages (from-to) | 483-492 |
| Number of pages | 10 |
| Journal | 한국전산구조공학회논문집 |
| Volume | 23 |
| Issue number | 5 |
| State | Published - Oct 2010 |