A study on auxetic-inspired side structure for enhanced crashworthiness

A novel type of side structure of ship is proposed, inspired by auxetic materials with a negative Poisson's ratio, for enhancing the crashworthiness of double-hull vessels. Three different unit cells (VRE, HRE, and ARR) are designed and numerical simulation is conducted to demonstrate their resistance to collision. A comparative study on the crashworthiness of the proposed side structures and those of traditional side structures (double hull, X-core, and Y-core) is performed and a superior capability of energy absorption and collision resistance of the proposed side structures is observed. These findings demonstrated a potential for auxetic-based structures to be applied as a collision resistance structure implemented in various protective structures.

Automated summary

A novel type of side structure for enhancing the crashworthiness of double-hull vessels is proposed based on auxetic materials. Numerical simulation demonstrates the resistance to collision of three different unit cells. A comparative study shows that the proposed side structures have superior energy absorption and collision resistance compared to traditional side structures.