Optimization three: tunable fiber alignment and geometric tailor-ability

One of the most significant advantages of using Tailored Fiber Placement (TFP) in composite design is the ability to precisely control the placement of each tow of carbon fiber. This precision allows designers to optimize material properties effectively, minimizing the need for excess material while maintaining structural integrity. By strategically placing fibers, designers can enhance the performance of composite structures, reducing weight and material costs while achieving desired mechanical properties.

In the study by K. Uhlig et al., titled "Meso-scaled finite element analysis of fiber reinforced plastics made by Tailored Fiber Placement," published in Composite Structures, Volume 143, 2016, Pages 53-62, the authors explore the benefits of TFP in enhancing the performance of fiber-reinforced plastics. The study provides insights into the meso-scale modeling of these materials, highlighting the significant improvements in strength and durability achieved through this advanced placement technique. For more details, you can access the study here.

An example of TFP's application is in the creation of complex tow paths of carbon fiber that are specifically embroidered to resist applied loads effectively. By aligning fibers with the principal stresses, the design provides additional mechanical support without the need for additional material. This method is particularly advantageous for reinforcing areas prone to stress, such as holes and circular drill points. In traditional laminate designs, these areas can become crack propagation sites due to the orthogonal nature of woven fabrics. However, with TFP, fibers can be strategically placed in curvilinear patterns around these points, significantly reducing potential crack initiation sites. This technique allows for thinner material usage at these critical locations and may even eliminate the need for metal reinforcing washers.

Further Reading & Resources

To explore more about Tailored Fiber Placement and its applications, consider the following resources:

• ScienceDirect: Composite Structures Journal - A comprehensive resource for research articles related to composite materials and their applications.
• ResearchGate: Meso-scaled Finite Element Analysis - Access additional research on TFP and its impact on material performance.