公开(公告)号：US20210268746A1

公开(公告)日：2021-09-02

申请号：US17322553

申请日：2021-05-17

Applicant: University of Tennessee Research Foundation

Inventor： Brett Gibson Compton ,  Michael James Goin ,  Hesam Shams ,  Oleg Shylo

IPC: B29C64/40 ,  B29C64/393 ,  C08J9/26 ,  B29C64/314 ,  B29C64/153 ,  B33Y70/00 ,  B29C64/118 ,  B29C64/106 ,  B29C64/112 ,  B29C64/10 ,  B28B1/00

Abstract: An article of manufacture includes a cellular structure having one or more layers that are dispensed in a viscous form. Each of the one or more layers have a plurality of walls that define an array of cells, the array of cells being arranged to create a non-uniform relative density and/or cell geometry across a width and/or a length of the cellular structure, the width and the length being oriented substantially orthogonally to a depth of the cellular structure.

公开(公告)号：US11020909B2

公开(公告)日：2021-06-01

申请号：US16165880

申请日：2018-10-19

Applicant: University of Tennessee Research Foundation

Inventor： Brett Gibson Compton ,  Michael James Goin ,  Hesam Shams ,  Oleg Shylo

IPC: B22F7/04 ,  B29C41/20 ,  B29C70/68 ,  B33Y10/00 ,  B29C64/40 ,  B29C64/393 ,  C08J9/26 ,  B29C64/314 ,  B29C64/153 ,  B33Y70/00 ,  B29C64/118 ,  B29C64/106 ,  B29C64/112 ,  B29C64/10 ,  B28B1/00 ,  B29K63/00 ,  B29K75/00 ,  B29D99/00 ,  B29K103/04 ,  B29K103/06 ,  B29K67/00 ,  B29K21/00 ,  B29L31/60 ,  B29K55/02 ,  B29L24/00

Abstract: A method of producing a cellular structure via an additive manufacturing technique includes the steps of: providing a feedstock material to an additive manufacturing printer device; dispensing the feedstock material from the printer device; and controlling the dispensing of the feedstock material to form at least one layer of the cellular structure according to a first predetermined gradient. In some aspects, the cellular structure comprises an array of cells surrounded, respectively, by walls, and arranged to create a non-uniform relative density and/or cell geometry across a width and/or a height of the cellular structure. An article of manufacture produced by such methods includes a cellular structure configured to produce a controlled collapse with selectable dynamic stiffness characteristics by altering the distribution and geometry of cells within the cellular structure, while being able to maintain a substantially similar static stiffness characteristic.

公开(公告)号：US20190118486A1

公开(公告)日：2019-04-25

申请号：US16165880

申请日：2018-10-19

Applicant: University of Tennessee Research Foundation

Inventor： Brett Gibson Compton ,  Michael James Goin ,  Hesam Shams ,  Oleg Shylo

IPC: B29C64/40 ,  B29C64/393 ,  B29C64/153 ,  B29C64/314 ,  C08J9/26

Abstract: A method of producing a cellular structure via an additive manufacturing technique includes the steps of: providing a feedstock material to an additive manufacturing printer device; dispensing the feedstock material from the printer device; and controlling the dispensing of the feedstock material to form at least one layer of the cellular structure according to a first predetermined gradient. In some aspects, the cellular structure comprises an array of cells surrounded, respectively, by walls, and arranged to create a non-uniform relative density and/or cell geometry across a width and/or a height of the cellular structure. An article of manufacture produced by such methods includes a cellular structure configured to produce a controlled collapse with selectable dynamic stiffness characteristics by altering the distribution and geometry of cells within the cellular structure, while being able to maintain a substantially similar static stiffness characteristic.