Researchers from Northwestern University have studied the structure of mantis shrimp clubs, which are capable of withstanding extreme high-impact forces. This discovery is relevant for architects, product designers, and materials engineers seeking to develop advanced and sustainable materials for applications involving shock absorption, energy dissipation, and durability.

Properties of the Mantis Shrimp Club
Mantis shrimp are marine crustaceans with club-like appendages that can deliver strikes with speeds comparable to a bullet. These strikes are strong enough to crack aquarium glass and shells of prey. Despite this force, the structure of the mantis shrimp club remains intact, a feature attributed to its unique material composition and layered architecture.

Structural Composition
The mantis shrimp club is characterized by a multi-layered structure designed for resilience. Its impact region redistributes forces effectively, utilizing interlocked mineral fibres to prevent fractures and maintain structural integrity. The club’s layers are arranged in a periodic, bouligand-like pattern, which dissipates high-frequency stress waves and reduces the likelihood of structural failure. Dense mineralized layers beneath this pattern provide additional resistance to deformation, ensuring long-term durability.

Potential Applications
The structural properties of the mantis shrimp club suggest applications across multiple design fields. In architecture and interiors, materials modeled after this structure could improve seismic resistance and offer impact-resistant surfaces. In product design, biomimetic features could enhance protective gear, including helmets and knee pads. Automotive components designed with similar principles could improve crash resistance by redirecting and absorbing impact forces. Sustainable biomaterials inspired by this structure could also transform packaging by reducing reliance on single-use plastics.

Implications for Sustainability
The mantis shrimp club demonstrates an efficient use of natural, renewable materials, combining minerals and organic compounds to achieve resilience. Replicating these principles in engineered materials could result in biodegradable, recyclable, and energy-efficient alternatives. The ability to mitigate high-frequency stress waves has implications for reducing material fatigue, extending the lifespan of products, and minimizing waste.

Source: ScienceDaily
Photo: Northwestern University