Abstract
In the present paper, the effects of the thickness and width of a curved wide-plate, the crack length, and the strain hardening exponent on the crack-tip constraint of the curved wide-plate were investigated. To accomplish this, detailed three-dimensional elastic-plastic finite element (FE) analyses were performed considering various geometric and material variables. The material was characterized by the Ramberg-Osgood relationship, and the Q-stress was employed as a crack-tip constraint parameter. Based on the present FE results, the variations in the Q-stress of the curved wide-plate with the geometric variables and material properties were evaluated. This revealed that the effect of out-of-plane constraint conditions on the crack-tip constraint was closely related to the in-plane constraint conditions, and out-of-plane constraint conditions affected the crack-tip constraint more than in-plane constraint conditions.
| Original language | English |
|---|---|
| Pages (from-to) | 1441-1446 |
| Number of pages | 6 |
| Journal | Transactions of the Korean Society of Mechanical Engineers, A |
| Volume | 38 |
| Issue number | 12 |
| DOIs | |
| State | Published - 2014 |
Keywords
- Crack-tip constraint
- Curved wide-plate
- Finite element analysis
- HRR singularity
- Q-stress