19 September 2010
19 September 2010
AGY has introduced S-1 HM high performance rovings for use in wind turbine blade applications, designed to offer superior value performance in the highly competitive wind energy composite reinforcement market.
Using a proprietary new glass formulation, AGY say that S-1 HM rovings are the highest tensile modulus glass fibers available worldwide, at 90 GPa, as measured by ASTM D2343. Typical E-Glass products offer tensile modulus of 70-75 GPa, while competitive higher performance glass fibers offer tensile modulus of 80-85 GPa. “Feedback from various wind turbine OEMs suggests the current need for high performance reinforcements is the highest possible tensile modulus while maintaining a balance with cost, “said Drew Walker, AGY Vice President of Sales and Marketing. “The key to S-1 HM rovings is the fact that it can be produced at high volumes in a very cost effective manner, maximizing the value/performance offered to blade designers and manufacturers.”
According to AGY, data generated in unidirectional laminates (ASTM D3039, D3410) have shown that in the same resin system, S-1 HM rovings can have significant benefits over traditional E-Glass - an 85% increase in tensile strength, an increase in tensile modulus in excess of 20%, a 50% increase in compressive strength, and a 20% increase in compressive modulus. It is also expected that S-1 HM rovings will demonstrate a 10x improvement in fatigue vs. E-Glass which will improve reliability and lower the total cost of ownership for blades.
“The ability to add length to a wind turbine blade allows the turbine to operate at 100% efficiency over a larger range of wind speeds. This, in turn, can reduce the cost of the electricity generated,” explained Walker. “The ability to reduce weight of a blade can also have benefits in terms of reducing costs in other areas of the complete wind turbine structure. AGY’s S-1 HM rovings not only meet the current demand for performance/value balance, but also set the standard for high performance glass fiber products for use in new designs for longer and lighter blades.”
Designers at Elemental Motor have utilised tailored fibre placement (TPF) to extend the use of carbon composites in its RP1 sports car.
Porcher Industries and its US subsidiary BGF Industries will present their latest innovations at CAMX 2018 on 15-18 October in Dallas, Texas, US, including new dry fibres for aerospace and automotive applications, the STELIA thermoplastic fuselage demonstrator, and solutions for the industrial, construction and sports and leisure sectors.
Composites One and the Closed Mold Alliance, along with more than 15 industry partners, will demonstrate the latest advancements in closed moulding and advanced processes for building real-life parts for marine, aerospace and other markets during CAMX 2018 in Dallas, Texas, US, on 16-18 October.