The numerical simulation of the crack growth in Compact Tension specimens which are plain sided is presented. The curves of the local crack extension (Δa) along the crack front vs. the load line displacement (νLL) from a JIC-multi-specimen test are used to control fracture initiation and crack growth. The agreement between the experimental and the computed load vs. displacement and J-integral vs. Δa curves is checked. Additionally, it is studied how some local parameters determined along the crack front, like the crack tip opening displacement (CTOD) or the triaxiality parameter σm/σeq (σm = mean stress, σeq =equivalent stress) change during the crack extension.
|Number of pages||6|
|Journal||Key Engineering Materials|
|Publication status||Published - 1 Dec 1998|
- Crack Growth
- Local CTOD
- Three-Dimensional Numerical Simulation