Fusion joining of thermoplastic composite wind turbine blades: Lap-shear bond characterization

Murray, Robynne E.; Roadman, Jason; Beach, Ryan

doi:10.1016/j.renene.2019.03.085

Fusion joining of thermoplastic composite wind turbine blades: Lap-shear bond characterization

Journal Article · Mon Mar 18 00:00:00 EDT 2019 · Renewable Energy

DOI:https://doi.org/10.1016/j.renene.2019.03.085· OSTI ID:1503808

Murray, Robynne E. ^[1]; Roadman, Jason ^[1]; Beach, Ryan ^[1]

National Renewable Energy Lab. (NREL), Golden, CO (United States)

Wind turbine blades are typically manufactured from a small number of components which are bonded together with an adhesive. Over the life span of a wind turbine, the static and fatigue loads in varying environmental conditions can lead to cracking and/or debonding of the adhesive joints, ultimately leading to blade structural collapse. The objective of this work is to investigate fusion joining of wind turbine blades manufactured using thermoplastic resin. Thermoplastic resins for wind turbine blades can reduce cycle times and energy consumption during manufacturing and facilitate end-of-life recycling and on-site manufacturing. Additionally, fusion joining of these materials can replace adhesives, resulting in stronger and more robust blades. This work showed that, compared to typical adhesives used in wind turbine blades, fusion welding resulted in an increase in both the static and fatigue lap-shear strength as compared to bonded thermoplastic composite coupons. This initial coupon-scale research suggests that there is potential for developing fusion welding techniques for full-scale wind turbine blades.

View Accepted Manuscript (DOE)

Research Organization:: National Renewable Energy Lab. (NREL), Golden, CO (United States)

Sponsoring Organization:: USDOE National Renewable Energy Laboratory (NREL), Laboratory Directed Research and Development (LDRD) Program

Grant/Contract Number:: AC36-08GO28308

OSTI ID:: 1503808

Alternate ID(s):: OSTI ID: 1636739

Report Number(s):: NREL/JA--5000-72251

Journal Information:: Renewable Energy, Journal Name: Renewable Energy Journal Issue: C Vol. 140; ISSN 0960-1481

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Related Subjects

17 WIND ENERGY
composite
fusion joining
lap-shear strength
thermoplastic resin
wind turbine blade

Fusion joining of thermoplastic composite wind turbine blades: Lap-shear bond characterization

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References (26)

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