Major Activities

• Successfully completed one of the certification test (static test) of an extra-large size 8MW class (Blade length: 100m) offshore wind turbine blade
• Expansion of the blade test facility (test capability: up to 100m blade) and developing test technology (World largest scale)
• Development of high fiber content (30 vol% or more) thermoplastic (PA6 resin-based) intermediate material using carbon long fiber non-woven fabric
• Structural design of carbon composites seat-cross member (S/Cross MBR) designed for high-speed injection pultrusion process
• The design of radar absorbing structure for aircraft application.

Major Research Area

• Commercial development of large scale wind turbine blade including design/analysis and testing/certification technologies
• Development of crash design/analysis-test/evaluation technology for carbon composite-based structure and commercial development of lightweight bodies/parts for future mobility using the technology
• Development of design, analysis, manufacturing, and testing technologies of electromagnetic-wave absorbing composites and their application

Future Research Plan

• Development and commercialization of the 8MW class wind turbine blade
  - with the goal to supply domestic large-scale offshore wind farms
  - with the goal to develop and commercialize the world-first and world-longest blade (approximately 100m)
• Development of adhesive-type modular blades over 70m for overcoming onshore transportation limitation
• Development of the quality assurance, safety guarantee and reliability improvement technology for offshore wind turbine blades
• Development of crash design/analysis-test/evaluation technology for carbon composite-based structure and commercial development of lightweight bodies/parts for future mobility using the technology
• Commercialization of millimeter-wave absorbers for 5G communication
• Development of design, analysis, manufacturing, and testing technologies of stealth antenna and their application.

Major R&D Activities

Development of an extra-large size 8MW class (Blade length: 100m) offshore wind turbine blade and expansion of the blade test facility (Test capability: up to 100m blade)

• Developing an extra-large size 8MW class (Blade length: 100m) offshore wind turbine blade with Doosan Heavy Industries and Human Composites
  - The full-scale blade static test for certification has been successfully completed
  - The remained fatigue and post-fatigue static test of the blade will be followed in 2022
• The blade test laboratory has been successfully expanded to test up to 100m blade (World largest scale)
  - Extra-large size blade testing technology is developed including test rig and winch simultaneous controlling technology and fatigue testing technology using multi-axis loading
  
  ※ The extra-large size 8MW class offshore wind turbine model is the flagship model for supplying domestic large-scale offshore wind farms in Korea

Technology development of crash-absorbing integrated structures applying (recycled) carbon long fiber thermoplastic composites

• Capacity-building through development for the full-cycle technology of 「design/analysis-prototype-test/evaluation」 of thermoplastic composites with excellent crash performance by utilizing (recycled) carbon long fibers and commercial development of a crash absorbing integrated structure with an excellent crash performance for lightweight platforms applied to future eco-friendly mobility
• Development for intermediate materials of a high content (fiber volume fraction of 30 vol% or more) PA6 resin-based thermoplastic composites using carbon long fiber non-woven fabric
  - Excellent basic properties: fiber volume fraction 33.2 vol%, tensile strength 27.1 GPa, tensile strength 335 MPa, and impact strength 9.2 kJ/m²
• Securing the material-modeling and crash analysis technology considering the realization of the failure mode and the crash energy absorption of thermoplastic carbon composite
  - Development of analysis technique for realizing the splaying failure mode by lamina bending of the thermoplastic composites during a high-speed crash

Development of design/manufacturing/testing core technologies of radar absorbing structures

• Development of stealth technologies: intermediate materials of radar absorbing structures and prototyping technology
• Radar absorber with mechanical performance equivalent to materials certified for airborne structures.
• Prediction and measurement of radar absorbing performance utilizing free space measurement equipment
• Development of electromagnetic wave absorbing/blocking structure for 5G application