#Composites

2020-06-17

Kordsa tests process-induced residual stresses in manufacturing thermosetting polymers

Process induced residual stresses in composite materials are unavoidable, but they should be taken into consideration in both the design and manufacturing process in order to meet the requirements of dimensional accuracy and good mechanical performance. Kordsa Composites Technologies Project Leader Dr. Fatih Ertu?rul Öz sheds light on distorting effects in the manufacture of thermosetting polymer composites.

Fiber reinforced composite materials have been increasingly used in various structural components in the aerospace and automotive industries. This increased usage requires a detailed understanding of the process-induced residual stresses. Residual stresses are the stresses that remain in a material or structure after the source of these stresses has been removed. The non-uniform distribution of residual stresses results in deformation, matrix cracking, and even delamination.

The article in the Reinforcer Magazine by the Project Leader Dr. Fatih Ertugrul Öz, presents process-induced residual stresses and their distorting effects in the manufacture of thermosetting polymer composites and shows the effect of the different properties of constituents.

For more details on Kordsa’s thermoplastic prepregs please see:

https://www.kordsa.com/tr/images/pdf/reinforce_dergi_no12_2020.pdf

Kordsa showcases sustainability and innovation-driven solutions at Tire Technology Expo 2025

Kordsa, a global player in advanced material technologies, participated in Tire Technology Expo 2025, one of the leading trade fairs for the tire industry, held in Hannover, Germany. At the event, Kordsa highlighted its advancements in tire reinforcement technologies while sharing its vision of providing solutions to the global tire industry with the advantage of local production.

Kordsa recognized on CDP 2024 ‘Global A List’ for climate change and water

Kordsa, a subsidiary of Sabanc? Holding, has been recognized on the 2024 Global A List of the Carbon Disclosure Project (CDP), one of the world’s most prestigious environmental reporting platforms, for both Climate Change and Water themes. This marks the first time Kordsa has achieved an A rating in both categories.

JEC World 2026 reveals the list of finalists for the Innovation Awards

Each year, the JEC Composites Innovation Awards recognize collaborative, innovative, and ambitious projects that illustrate the potential of composite materials. Created in 1998, this benchmark program aims to identify, promote, and reward the most innovative composite solutions worldwide. In 28 years, the JEC Composites Innovation Awards have attracted more than 2,200 participating companies from around the world. A total of 269 companies and 811 associated partners have been recognized for the excellence of their innovations.

MEL Composites and Carrocerías Ayats collaborate on lightweight composite window frames

MEL Composites is proud to announce its ongoing collaboration with Spanish bus and coach manufacturer Carrocerías Ayats, showcasing the benefits of advanced composite technologies and scalable manufacturing processes originally developed for the sporting goods sector. The joint development of lightweight composite window frame covers demonstrates how MEL’s process innovation can be successfully transferred to the transportation industry to meet new regulatory and performance goals.

38th International Cotton Conference Bremen: Let´s Talk about Cotton!

The 38th International Cotton Conference Bremen, to be held on 25-27 March 2026 in Bremen’s parliament building on market square, once again sends a powerful signal for professional excellence and international dialogue. The focus is on the latest market trends and technical innovations throughout the entire value chain – from agriculture and quality assurance to processing and the circular economy. With its high-calibre speakers, the conference remains an indispensable forum for anyone involved in shaping the cotton industry scientifically, technically, or economically.

More safety and comfort for protective clothing thanks to auxetic fabrics

When everyday materials are pulled, they stretch or elongate in the direction of the pull and become narrower in cross-section. We can also observe this property in two-dimensional textiles. Auxetic structures behave differently here. They have the striking property of not changing under tensile stress or even increasing their width or thickness. These properties are advantageous, for example, in protective textiles or textile filter media. The DITF are researching auxetic fabrics for various applications.