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    THREE-DIMENSIONAL (3D) PRINTED COMPOSITE STRUCTURE AND 3D PRINTABLE COMPOSITE INK FORMULATION
    1.
    发明申请
    THREE-DIMENSIONAL (3D) PRINTED COMPOSITE STRUCTURE AND 3D PRINTABLE COMPOSITE INK FORMULATION 审中-公开
    三维（3D）印刷复合结构和3D可打印复合油墨配方

    公开(公告)号：US20160346997A1

    公开(公告)日：2016-12-01

    申请号：US15117623

    申请日：2015-02-10

    Applicant: PRESIDENT AND FELLOWS OF HARVARD COLLEGE

    Inventor： Jennifer A. Lewis ,  Brett G. Compton ,  Jordan R. Raney ,  Thomas J. Ober

    IPC: B29C67/00 ,  B33Y70/00 ,  B33Y80/00 ,  B33Y10/00

    CPC classification number: B29C67/0055 ,  B29C64/106 ,  B29C70/06 ,  B29K2105/124 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00

    Abstract: A filamentary structure extruded from a nozzle during 3D printing comprises a continuous filament including filler particles dispersed therein. At least some fraction of the filler particles in the continuous filament comprise high aspect ratio particles having a predetermined orientation with respect to a longitudinal axis of the continuous filament. The high aspect ratio particles may be at least partially aligned along the longitudinal axis of the continuous filament. In some embodiments, the high aspect ratio particles may be highly aligned along the longitudinal axis. Also or alternatively, at least some fraction of the high aspect ratio particles may have a helical orientation comprising a circumferential component and a longitudinal component, where the circumferential component is imparted by rotation of a deposition nozzle and the longitudinal component is imparted by translation of the deposition nozzle.

    Abstract translation: 在3D打印期间从喷嘴挤出的丝状结构包括其中分散有填料颗粒的连续长丝。 连续长丝中的填料颗粒的至少一部分包含相对于连续长丝的纵向轴线具有预定取向的高纵横比颗粒。 高纵横比颗粒可以沿着连续长丝的纵向轴线至少部分地排列。 在一些实施例中，高纵横比颗粒可以沿着纵向轴线高度对准。 另外或者替代地，高纵横比颗粒的至少一部分可以具有包括圆周部件和纵向部件的螺旋取向，其中周向部件通过沉积喷嘴的旋转而施加，并且纵向部件通过 沉积喷嘴。

    Shape Recoverable And Reusable Energy Absorbing Structures, Systems And Methods For Manufacture Thereof
    3.
    发明申请
    Shape Recoverable And Reusable Energy Absorbing Structures, Systems And Methods For Manufacture Thereof 审中-公开
    形状可回收和可重复使用的能量吸收结构，其制造方法和方法

    公开(公告)号：US20170051806A1

    公开(公告)日：2017-02-23

    申请号：US15306038

    申请日：2015-04-04

    Applicant: President and Fellows of Harvard College

    Inventor： Sung Hoon Kang ,  Katia Bertoldi ,  Jordan R. Raney ,  Jennifer A. Lewis ,  Sicong Shan

    IPC: F16F7/12 ,  B33Y80/00 ,  B33Y50/02 ,  B29C67/00 ,  B33Y10/00

    CPC classification number: F16F7/12 ,  B29C64/106 ,  B29C64/386 ,  B29K2995/0046 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y80/00 ,  B60R19/22 ,  E01F15/145 ,  F16F2224/00 ,  F16F2224/025 ,  F16F2230/40 ,  F16F2236/04

    Abstract: An energy absorbing cell has a first structural element, a second structural element disposed parallel to and spaced apart from a first structural element, a first intermediate member, and a second intermediate member. Each intermediate member is disposed at an angle between the structural elements. A first end and a second end of each intermediate member are respectively attached to the structural elements. The intermediate members are formed from an elastic material. The angles of the intermediate members are selected such that application of a compressive force to displace the structural elements toward one another triggers a snap-through instability in both intermediate members. The energy absorbing cell is used, singly or in combination with one or more other energy absorbing cells, to form energy absorbing structures, such as vehicle bumpers or highway barriers, adapted to control the deceleration of an object impacting the energy absorbing structure.

    Abstract translation: 能量吸收单元具有第一结构元件，与第一结构元件平行并间隔开的第二结构元件，第一中间元件和第二中间元件。 每个中间构件以结构元件之间的角度设置。 每个中间构件的第一端和第二端分别连接到结构元件。 中间构件由弹性材料形成。 中间构件的角度被选择为使得施加压缩力以将结构元件朝向彼此移动会触发两个中间构件中的卡通不稳定性。 能量吸收单元单独地或与一个或多个其它能量吸收单元组合使用，以形成适于控制影响能量吸收结构的物体的减速度的能量吸收结构，例如车辆保险杠或公路障碍物。

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