Phase transforming cellular matrix (PXCM) based tile design for a lightweight runway mat

A flexible mat system, comprising:

• a plurality of base platforms, each respective base platform having a first pattern of phase transforming columns and voids extending from a respective flat member;
• a plurality of plane-engaging composite runway platforms, each respective plane-engaging composite runway platform having a second, reversed pattern of phase transforming columns and voids extending from a respective flat member such that each respective plane-engaging runway platform is lockingly engagable to a respective base platform to yield a landing segment with parallel top and bottom flat members;
• wherein each respective phase transforming column is further comprised of a plurality of stacked operationally connected phase transforming cellular members;
• wherein each respective phase transforming cellular member can shift from a first stable configuration to a second stable configuration in response to an applied load;
• wherein each respective cell further comprises six hexagonally spaced support members defining six hexagonally arrayed sides;
• wherein two opposing sides define x-shaped struts extending between adjacent support members;
• wherein the remaining sides define parallel struts extending between adjacent support members;
• and
• wherein each respective phase transforming column is a steel hexagonal PXMC column.

An energy absorbing mat, comprising:

• a first elongated plate member portion having a first plurality of spaced columns extending therefrom;
• a second elongated plate member portion;
• wherein the respective first and second elongated plate member portions are matably interconnectible;
• wherein each respective column defines a plurality of operationally connected phase transforming cells;
• wherein each respective spaced column is a steel hexagonal PXMC column;
• wherein each respective cell has a first and a second stable geometry;
• and
• wherein energy transfer is required to shift from one stable geometric configuration to the other.