Brief history with considerable experience

2000: When Stress & Strength GmbH was established in May 2000 as a spin-off of Fraunhofer LBF in Darmstadt it was able to draw on many years of expert experience in structural durability research.

2001: Based on research of Fraunhofer LBF, the first software was published in 2001, which was LBF®.WheelStrength for CAE Patran/Nastran; however it was not yet integrated into CAE at this time, nor was there an individual user interface.

2002: The company expanded the software release with a further CAE interface for ANSYS.

Until 2010: Both versions were enhanced and expanded using various bug fixes and feature releases. Different solutions for client-specific problems were also developed.

2011: The increasing digitalisation of production processes in the automotive industry also placed higher demands on the software, thus work began on new LBF®.WheelStrength Version 3.0.

2013: The new software LBF®.WheelStrength 3.0 was successfully released. New features included an individual user interface, new functionalities for passenger cars and commercial vehicles, as well as various tire models.

Head office of Stress & Strength GmbH in Darmstadt.
2014: Based on LBF®.WheelStrength 3.0 the first release of a new generation was published under the name LBF®.WheelStrength Cordelia with once more extended functionalities.

2015: The successor of LBF®.WheelStrength Cordelia was successfully released: LBF®.WheelStrength Ophelia. This release is mainly characterized by its increased performance and efficiency and thereby saving of calculation time.

2016: LBF®.WheelStrength Bianca offers a new powerful graphic module, an additional interface and a tire model extension. The development on new features and the increase of processing speed could be continued successfully.

2017: LBF®.WheelStrength Ariel provides further options to customize the calculation for specific demands. Increased functionality and optimized graphic processing enhance the evaluation of the simulation results.

2018: With the current release LBF®.WheelStrength Titania the functional range is extended by another stress hypothesis and a design spectrum for the lifetime assessment of wheels and wheel hubs on 3-axle semi-trailers. Besides the interfaces to Abaqus, ANSYS, Nastran and Permas, an interface to Altair Hyperworks OptiStruct is now available.

2019: LBF®.WheelStrength Miranda adds the possibility to define a preload, that is super imposed with the standard loads. There is also a new design spectra for torsion, that adds the load cases braking, braking in curve and acceleration. In a new menu you can calculate the distance between two nodes. The length of the load application has been reduced drastically.

2020: Ready for the future. LBF®.WheelStrength Cressida updates its Java version to Java 11 64-bit. Therefor it runs on modern Systems like Windows 10 without a problem. The simulatiojn can be done more flexible, e.g. the excitation rod for CFT can now be defined beforehand. Furthermore we now support the free FE-Solver Calculix.

2021: The newest version LBF.®WheelStrength Belinda adds a flat shader to display the wheel. Views can be inverted and settings saved separatly. There are factory settings to fall back to. For heavy truck wheels a new Spectra has been added for rear axle wheels and hubs.