Printed, not Made: Bulletproof 3D printed cubes

Rice University engineers blasted their lattice structures with bullets traveling at 5.8 km (3.6 mi) per second, with the cubes proving 10 times more effective at absorbing the impact than solid cubes made from the same polymer material

Introduction

In a groundbreaking development, researchers have successfully created 3D printed plastic cubes with bulletproof capabilities. This technology redefines the concept of materials used in protective gear, demonstrating the immense potential of 3D printing technology in creating high-performance materials.

Rice University engineers blasted their lattice structures with bullets traveling at 5.8 km (3.6 mi) per second, with the cubes proving 10 times more effective at absorbing the impact than solid cubes made from the same polymer material

Development

The research team utilized a unique lattice structure within the plastic cubes, which plays a crucial role in their bulletproof properties. This lattice structure consists of meticulously arranged polyhedral cells that absorb and disperse energy upon impact. For instance, the arrangement of these polyhedral cells resembles the honeycomb structure of a beehive, efficiently distributing the force of impacts. These 3D printed cubes are made from a special polymer, and when combined with the complex lattice design, they offer exceptional strength and durability. In testing scenarios, these cubes have proven their practicality by withstanding direct hits from high-caliber bullets.

Expansion

Beyond their bulletproof capabilities, these 3D printed cubes exhibit remarkable versatility. The lattice structure can be customized to enhance various properties, such as flexibility, lightweight, and even thermal insulation. This adaptability opens up numerous applications beyond military and defense. For example, the technology can be used in the automotive industry to create safer, impact-resistant car parts, and in construction to develop lightweight, durable building materials. The ability to tailor the lattice design to specific requirements showcases the flexibility and potential of 3D printing technology across various industries.

Rice University graduate student Seyed Mohammad Sajadi and his colleagues built computer simulations of tubulane blocks, printed the designs as macroscale polymers and subjected them to crushing forces and speeding bullets. Photo by Jeff Fitlow

Conclusion

The advent of 3D printed bulletproof plastic cubes marks a significant milestone in material science and protective technology. This innovation not only redefines the capabilities of plastic materials but also highlights the transformative potential of 3D printing. As research and development continue, these advanced materials are expected to be integrated into a wide range of applications, providing enhanced safety and performance. The future of protective gear and beyond looks promising, with 3D printing technology leading this revolution.

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