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    • 2. 发明授权
    • Double truss structural armor component
    • 双桁架结构装甲组件
    • US5654518A
    • 1997-08-05
    • US569414
    • 1995-12-06
    • Steven K. Dobbs
    • Steven K. Dobbs
    • B21C37/00B21D47/00B64D7/00F41H5/04
    • F41H5/0457B64D7/00
    • A double truss structural armor component includes a first face sheet, an intermediate sheet opposing the first face sheet, a first truss core member sandwiched between the first face sheet and the intermediate sheet, a second face sheet opposing the intermediate sheet, a second truss core member sandwiched between the second face sheet and the intermediate sheet, and laminate materials disposed within interior flutes of the first and second truss core members. The first tress core member has a flute axis. The second truss core member has a flute axis which is oriented in a range of about 45.degree. to 90.degree. from the flute axis of the first truss core member. Thus, a biaxially redundant load path is formed. The first and second face sheets, the intermediate sheet, and the first and second truss core members are formed of high toughness, high strength titanium alloys. The laminate materials which are within the interior flutes of the truss core members are bonded to portions of the flutes that are adjacent to the intermediate sheet. The laminate materials have high energy of break properties. During impact of a ballistic fragment, one of the face sheets slows down the fragment and flattens and further fragments the fragment. When the resulting fragments impact the laminate materials, their energies are absorbed by the laminate materials by high strain deformation of the laminate materials in biaxial directions. Thus, the fragments are brought to rest and are prevented from penetrating the other face sheet. During impact of a blast wave, the energy wave is partially absorbed by one of the face sheets, deforming and transferring load to the truss core members. These members deform in a buckling mode in biaxial directions, thereby absorbing the blast energy in a spring-like manner, preventing fracture of the other face sheet.
    • 双桁架结构铠装部件包括第一面板,与第一面板相对的中间片,夹在第一面片和中间片之间的第一桁架芯构件,与中间片相对的第二面片,第二桁架芯 夹在第二面板和中间片之间的构件,以及设置在第一和第二桁架芯构件的内部槽纹内的层压材料。 第一发条芯部件具有凹槽轴线。 第二桁架芯构件具有从第一桁架芯构件的槽纹轴线定向在约45度至90度范围内的槽纹轴线。 因此,形成双轴冗余的负载路径。 第一和第二面板,中间片以及第一和第二桁架芯构件由高韧性,高强度的钛合金形成。 在桁架芯部件的内部凹槽内的层压材料被粘合到与中间片相邻的凹槽的部分。 层压材料具有高的断裂能量。 在弹道碎片的冲击期间,其中一张面板使片段减慢并变平,并进一步碎片。 当所得到的碎片撞击层压材料时,它们的能量被叠层材料通过层压材料在双轴方向上的高应变变形而被吸收。 因此,使碎片静止并防止其渗透到另一面片。 在冲击波期间,能量波被面板之一部分地吸收,变形并将负载传递给桁架芯构件。 这些构件在双轴方向上以屈曲模式变形,从而以弹簧状方式吸收爆破能量,防止另一面板的断裂。