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    ENERGY ABSORBING TRUSS STRUCTURES FOR MITIGATION OF INJURIES FROM BLASTS AND IMPACTS
    32.
    发明申请
    ENERGY ABSORBING TRUSS STRUCTURES FOR MITIGATION OF INJURIES FROM BLASTS AND IMPACTS 有权
    能量吸收TRUSS结构，以减轻因烧伤和影响而造成的伤害

    公开(公告)号：US20160160952A1

    公开(公告)日：2016-06-09

    申请号：US14198323

    申请日：2014-03-05

    Applicant: HRL LABORATORIES, LLC

    Inventor： Tobias A. Schaedler ,  Alan J. Jacobsen ,  Zak C. Eckel ,  Sophia S. Yang ,  Adam E. Sorensen ,  Jacob M. Hundley ,  William Carter ,  Jie Jiang

    IPC: F16F7/12 ,  B60N3/04 ,  F41H5/007

    CPC classification number: F16F7/121 ,  B60N3/048 ,  F41H5/007 ,  F41H7/042

    Abstract: Architected materials with superior energy absorption properties when loaded in compression. In several embodiments such materials are formed from micro-truss structures composed of interpenetrating tubes in a volume between a first surface and a second surface. The stress-strain response of these structures, for compressive loads applied to the two surfaces, is tailored by arranging for some but not all of the tubes to extend to both surfaces, adjusting the number of layers of repeated unit cells in the structure, arranging for the nodes to be offset from alignment along lines normal to the surfaces, or including multiple interlocking micro-truss structures.

    Abstract translation: 建筑材料在加载压缩时具有优异的能量吸收特性。 在几个实施例中，这种材料由在第一表面和第二表面之间的体积中的互穿管构成的微型桁架结构形成。 这些结构的应力 - 应变响应对于施加到两个表面的压缩载荷，通过将一些但不是全部的管布置成延伸到两个表面来调整结构中的重复单元的层数， 因为节点要沿垂直于表面的线偏移，或包括多个互锁的微型桁架结构。

    Device for in-line consolidation of composite materials
    33.
    发明授权
    Device for in-line consolidation of composite materials 有权

    公开(公告)号：US11167455B1

    公开(公告)日：2021-11-09

    申请号：US16906697

    申请日：2020-06-19

    Applicant: HRL LABORATORIES, LLC

    Inventor： Jacob M. Hundley ,  Eric C. Clough ,  Zak C. Eckel

    IPC: B29C35/08 ,  B29K101/10

    Abstract: A system for fabricating composite parts efficiently. Pre-impregnated (prepreg) composite material is drawn as a sheet from a roll and fed by advancement rollers into a stamping and molding station in which a piece of the prepreg material is cut, on a mold, from the sheet. Pressure is applied to cause the prepreg material to conform to a surface of the mold, and the prepreg is cured with ultraviolet light. Additional layers of prepreg may be cut and cured on any layers that have already been cured on the mold. The complete part may be removed from the mold with ejector pins. Scrap prepreg may be recycled in a recycling station that separates reinforcing fiber from uncured resin.

    Open cellular sandwich structures having sealed edges and methods of manufacturing the same
    37.
    发明授权
    Open cellular sandwich structures having sealed edges and methods of manufacturing the same 有权

    公开(公告)号：US10710326B1

    公开(公告)日：2020-07-14

    申请号：US14197043

    申请日：2014-03-04

    Applicant: HRL Laboratories, LLC

    Inventor： Jacob M. Hundley ,  Alan J. Jacobsen ,  Sophia S. Yang ,  Zak C. Eckel ,  Christopher S. Roper ,  William Carter

    IPC: B32B3/12 ,  B29C65/70

    Abstract: A method of manufacturing a sandwich structure having an open cellular core and a fluid-tight seal surrounding the core includes coupling a mold to a first facesheet to define a reservoir. The method also includes irradiating a volume of photo-monomer in the reservoir with a series of vertical collimated light beams to form a cured, solid polymer border extending around a periphery of the first facesheet. The method also includes irradiating a remaining volume of photo-monomer in the reservoir with a series of collimated light beams to form an ordered three-dimensional polymer microstructure core defined by a plurality of interconnected polymer optical waveguides coupled to the first facesheet and surrounded by the cured, solid polymer border. The method further includes coupling a second facesheet to the ordered three-dimensional microstructure core and the cured, solid polymer border to form the sandwich structure.

    Ordered cellular structures and methods of manufacturing the same
    40.
    发明授权
    Ordered cellular structures and methods of manufacturing the same 有权

    公开(公告)号：US10399909B1

    公开(公告)日：2019-09-03

    申请号：US15190486

    申请日：2016-06-23

    Applicant: HRL LABORATORIES, LLC

    Inventor： Zak C. Eckel ,  Tobias A. Schaedler ,  Eric C. Clough

    IPC: C04B38/00 ,  G03F7/20

    Abstract: A method of manufacturing an ordered cellular structure including a series of interconnected unit cells. Each unit cell includes at least one straight wall segment. The method includes irradiating a volume of photo-monomer in a reservoir with at least one light beam from at least one light source to form the ordered cellular structure. Irradiating the volume of photo-monomer includes directing the at least one light beam though a series of interconnected apertures defined in a photo-mask covering the reservoir.

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