SHOW NEWS: Fatigue-analysis software breakthrough
Safe Technology has used Engine Expo 2012 to showcase its fe-safe product range, which includes two new products for this year.
Visitors to Engine Expo 2012 were interested to learn that the fe-safe technology is fatigue-analysis software for FE models, and includes many features that are especially applicable to powertrain applications.
The first new product that was unveiled at the Messe Stuttgart was the fe-safe/True-Load, which manages complex loads over the entire loading event by coupling the FEA model with measured strain data. It uses the data from a handful of strain gauges to understand the structural response of the entire model. The fe-safe/True-Load system offers in-situ load calculation with typical strain gauge correlation to within 2% of measured values.
The second new product that attracted many crowds in Hall 3 was the fe-safe/Rubber product, a solution for computer simulation of fatigue failure in elastomers. Safe Technology representatives at Engine Expo 2012 demonstrated that the technology possesses a formidable validation case. It handles rubber’s finite-strain kinematics, hyper-elastic stress-strain behaviour, strain crystallisation, temperature dependence and other effects such as ozone attack. These effects have been captured in the model, and they have been integrated with widely accepted procedures such as critical plane analysis, fracture mechanics and rain flow counting to provide a complete system capable of accounting for very complex duty cycles, including multi-axial loadings and variable amplitudes.
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