Endurica and Safe Technology Join Forces on Elastomer Fatigue Life Prediction

Release of fe-safe/Rubber™ Announced


17 November, 2011, Findlay, Ohio. Endurica LLC and Safe Technology Limited today announce that they have partnered to produce fe-safe/Rubber™ – a unique solution for computer simulation of fatigue failure in elastomers. For the first time, analysts responsible for the durability of elastomeric products will have a reliable and well validated method that enables them to investigate, at the inception of a design change, the issues that will determine product durability.

Similar solutions for fatigue analysis from FEA of metallic components have been available for many years. They have become an essential part of maturing and qualifying design concepts, providing a cost-effective and proven basis for justifying investment in physical prototypes and testing. “But the metal fatigue codes do not work well for rubber components. They do not consider rubber’s very unique structure and nonlinear behavior,” notes John Draper, CEO of Safe Technology.

Endurica’s technology now offers rubber developers the opportunity to reap the benefits of fatigue analysis at the design stage. Dr. William Mars, Endurica’s founder and president explains: “Our technology is purpose-developed for elastomers, and it possesses a formidable validation case. The technology handles rubber’s finite-strain kinematics, hyperelastic stress-strain behavior, strain crystallization, temperature-dependence, and other effects such as ozone attack. These effects have been captured in our model, and they have been integrated with widely accepted procedures such as critical plane analysis, fracture mechanics, and rainflow counting to provide a complete system capable of accounting for very complex duty cycles, including multiaxial loadings and variable amplitudes.”

The U.S. Army is among the first customers of the technology. Their application is the development of rubber components in the track system of military ground vehicles. Other early interest has come from the heavy equipment, consumer products, offshore, medical devices and automotive sectors.

Endurica’s patented technology is available immediately from Safe Technology as a stand-alone product. A fully integrated version of the technology, taking advantage of fe-safe’s friendly user interface and direct links to Finite Element codes, will be available at the end of Q1 2012. fe-safe/Rubber will support all major FEA codes including Abaqus, ANSYS, NASTRAN (MSC, NEi, NX), Pro-M, Ideas.

Contact Stephanie Wood, +44 114 2686 444 email: Email Contact;
           Will Mars +1 419 957 0543 email: Email Contact

About Endurica LLC. Endurica LLC develops the world’s most versatile and best-validated fatigue life simulation system for elastomers. Through its technology and services, Endurica empowers its customers to analyze real-world fatigue performance of elastomers at the design stage, when the greatest opportunity exists to influence performance, and before investment in costly fatigue testing of prototypes.

About Safe Technology Limited. Safe Technology is the technical leader in the design and development of durability analysis software and is dedicated to meeting its customers' most demanding applications. It develops and sells fe-safe®, the leading fatigue analysis software suite for finite element models. As a privately owned company, its independence and focus enables Safe Technology to continually bring the most advanced analysis technology to address real-world, industrial applications. fe-safe® is used by leading companies in automotive, truck, off-highway, marine, military, off-shore, power generation, wind energy, medical engineering and many other industries. fe-safe® has been developed continuously since the early 1990’s in collaboration with industry to ensure that it continues to set the benchmark for fatigue analysis software. fe-safe® was the first commercially available fatigue analysis software to focus on modern multiaxial strain based fatigue methods and was the first fatigue analysis software to bring to market capabilities for non-metallics with the launch of fe-safe/Composites™ in 2010 . fe-safe® analyses metals and composite materials, thermo-mechanical and creep-fatigue, and welded joints and is renowned for its accuracy, speed and ease of use.


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