High Speed Photography
The recently purchased Photron High-Speed camera by the Composites Research Centre (CRC) the Mechanical, Aeronautical and Biomedical Department here at the University of Limerick has been applied to the research at the CABER. This camera is capable of recording at speeds up to 675,000 frames per second (fps). CABER has successfully used this new equipment in their aneurysm research and also in their investigation of the electrospinning process.
AAA Rupture Studies
Recent publications by CABER have used high-speed photography to capture the rupture locations of experimental silicone models of AAAs. The camera proved very successful at 2,000 fps in determining the actual point of rupture and these experiments were then validated using FEA. Results revealed that AAAs do not necessarily rupture at regions of maximum diameter but are more likely to rupture at regions of inflection or where there are changes in the local surface curvature.
Figure 1: The sequence of events of a typical AAA rupture study and the FEA validation of the actual site of rupture.