公开(公告)号：US11131243B2

公开(公告)日：2021-09-28

申请号：US16281799

申请日：2019-02-21

Applicant: Airbus Operations S.L.

Inventor： Esteban Martino-Gonzalez ,  Iker Velez De Mendizabal Alonso ,  Vasilis Votsios ,  Guillermo Nicolas Gutierrez ,  Diego Sanchez Franco ,  David Matesanz Hidalgo ,  Jose Angel Hernanz-Manrique

IPC: F02C7/042 ,  B64D41/00 ,  B64D13/00 ,  B64C1/14 ,  B64D33/02 ,  B64C1/00

Abstract: An auxetic bi-stable structure that comprises an auxetic curved shell movable between a first and a second stable position, and a rigid element. At least part of the surface of the auxetic curved shell is joined to the rigid element such that the curved shell is movable with respect to the rigid element between the first and second stable positions.

公开(公告)号：US10899091B2

公开(公告)日：2021-01-26

申请号：US16128935

申请日：2018-09-12

Applicant: AIRBUS OPERATIONS S.L.

Inventor： Iker Velez De Mendizabal Alonso ,  David Apellaniz De La Fuente ,  Esteban Martino-Gonzalez-Aranjuez

IPC: B29C70/54 ,  B29C33/48 ,  B29D99/00 ,  B29D24/00 ,  B29C70/30 ,  B29K307/04 ,  B29L7/00

Abstract: A modular mold for producing a panel including a panel of fiber reinforced material. The panel is configured to form hollow cells having an undulated trapezoidal cross-section. The mold includes at least three molding bars for forming each hollow cell. One of the molding bars has a trapezoidal cross shape. The other two molding bars have a triangular cross shape. The trapezoidal molding bar is located between the two triangular molding bars. The three molding bars when put together its cross-section forms the shape of the trapezoidal cross-section of the hollow cell.

公开(公告)号：US11117344B2

公开(公告)日：2021-09-14

申请号：US16205973

申请日：2018-11-30

Applicant: Airbus Operations S.L.

Inventor： Esteban Martino-Gonzalez ,  Iker Velez De Mendizabal Alonso ,  David Apellaniz De La Fuente

IPC: B32B3/12 ,  B29D99/00 ,  B64C1/12 ,  B64C3/26 ,  B29C44/34 ,  B64C1/00

Abstract: A deformable auxetic structure for absorbing energy of an impact that comprises a plurality of interconnected adjoining tridimensional auxetic cells where each tridimensional auxetic cell comprises at least one surface element and a plurality of legs extending from the surface, the plurality of legs and the surface element being configured such that the sectional cut of the structure in at least two planes perpendicular to the surface element follows an auxetic pattern.