Topologically Controlled Composite Materials with High Energy Absorption Capability
Composite materials are a well-established technology in applications requiring high-performance such as sports, aerospace, or defense. However, conventional fiber reinforced composites are prone to severe delamination, cracking, and fiber breakage upon projectile impact. This lack of toughness is a critical limitation on the possible uses of the composite. MSU researchers have developed a new composite material based on small angle lamination (~15 degrees) with macroscopic curvature to give an increase in fiber bridging and increased toughness.
Description of Technology
The technology is a composite structure comprising multiple layers where some of the layers are oriented between 5 and 15o from the first and a portion of has a curved shape when cured, whereby an additional skin layer is also attached to the curved shape. This leads to increased fiber bridging and improved toughness of the composite structure.
- Usability: Due to its superior impact resistance this material can be utilized for many applications for which commercially available composites cannot be used.
- Versatility: The light, tough composite material can be formed into curved and thin shapes greatly enhancing possible uses.
- Composite structure doubles energy absorption capability
- Improved impact resistance from projectiles
- Armored ground vehicles, equipment
- Armor for ballistics applications, protective gear
- Aircraft and marine
- Sporting goods
Granted US patent 7,807,258
Dr. Dahsin Liu, Peter Schulz
For Information, Contact:
Michigan State University