LOW-POROUS AUXETIC SHEET MATERIAL Russian patent published in 2018 - IPC F02C7/00 B32B3/12 B32B3/24 F23R3/06 

FIELD: fuel combustion methods and devices.

SUBSTANCE: invention relates to having artificial porous structures solid bodies and relates to the low-porosity auxetic sheet material. Structural material comprises construction from structures with elongated pores, wherein each of the structures with elongated pores includes one or more substructures, first plurality of first structures with elongated pores, and second plurality of second structures with elongated pores, wherein each of the first and second structures with elongated pores has larger axis and smaller axis, the first structures with elongated pores larger axes are perpendicular to the second structures with elongated pores larger axes, the first and second pluralities of structures with elongated pores are arranged in the rows and columns matrix, each of the rows and each of the columns is made alternating between the first and second structures with elongated pores, the first and second structures with elongated pores are made in the form of I-shaped slotted holes, so, that the structures with elongated pores porosity is lower than about 10%, and the construction from structures with elongated pores defines the elementary cells, which, as response to the uniaxial stress, provide the sheet material of behavior demonstration with the negative Poisson's ratio.

EFFECT: invention provides creation of material having the artificial porous structure, due to which having the positive Poisson's ratio solid body demonstrates pseudo-acoustic properties during the stress application to the solid body.

15 cl, 30 dwg