SAERTEX tests new balsa alternative in the OptiFoam project
In the OptiFoam research project, SAERTEX is working with Fraunhofer IWES to investigate the potential of fiber-reinforced foams with the aim of developing a specially adapted material for rotor blades to replace balsa wood. Tests conducted to date have confirmed promising results.
SAERfoam is a hybrid structural core material that combines ultra-lightweight PU, PE, or PIR foams with integrated 3D glass bridges. The result: customizable mechanical properties, extremely low weight, and high structural strength—ideal for high-stress areas of rotor blades.
Fraunhofer IWES's testing laboratory has now subjected SAER foam for Wind to a patented bending pressure test. This test simulates real load scenarios such as those that occur in the transition areas of rotor blades, which are subject to particularly high stresses.
The test results show that fiber-reinforced core materials can achieve the mechanical stability, consistency and reliability of conventional balsa wood. In addition, they offer significant advantages in terms of cost and supply chain efficiency and ensure consistent quality and availability.
Watch the video now and gain insights into the testing process and the background of the project!
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