Optimal Fatigue Testing
A typical SN curve identifies the 50% fracture rate for a given level of loading. But even if the fractures were not consequential, it [...]
Non-Zero Mean Stress
We were curious about how mean stress would affect the fatigue life of the gStent-BE standardized test stent so we designed an experiment to [...]
FEA Predicts Fatigue
One major success of the gStent-BE as a standard test stent is the consistent fracture location during axial fatigue loading. All reported fractures occurred [...]
Model Validation Data
I built a Finite Element Model of the gStent-BE and compared the force/displacement response with data from an experiment on my Bose 3220 Dynamic [...]
Stent Fatigue Testing
Today I presented preliminary results of our inter-laboratory fatigue study at the FDA/NHLBI/NSF Workshop. Dimensional variances were characterized for the gStent-BE and found typical [...]
Stent Dimensions
The generic balloon expandable stent, a.k.a. the gStent-BE, is laser-cut from stainless steel tubing the same as most commercially available stents. It has a [...]