Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Multiphase composite recoverable energy-absorbing metamaterial and preparation method thereof
The invention belongs to the field of metamaterial preparation, and relates to a multiphase composite recoverable energy-absorbing metamaterial and a preparation method thereof, and the material comprises a hollow ellipsoid skin, an energy-absorbing lattice in the skin and a fluid damping material. The skin and the energy-absorbing crystal lattice are integrally formed and are both light-cured composite materials manufactured through additive manufacturing, gaps between the skin and the crystal lattice are filled with the fluid damping material, and the fluid damping material is composed of a damping dispersion phase and a damping medium; the pouring gate is filled in the crystal lattice through pouring and is solidified and sealed after pouring; the skin is elastically deformed under the action of impact force; the fluid damping material generates controllable deformation and absorbs energy under the action of the impact load, and the shape of the material can be recovered after the impact load disappears. The preparation method comprises the following steps: designing a hollow skin digital model of a lattice structure; carrying out integrated forming on a digital model based on additive manufacturing; a fluid damping material is prepared and poured; and curing and sealing the pouring gate. The prepared material has good application potential in the aspect of protection of cross-medium aircrafts.
本发明属于超材料制备领域，涉及一种多相复合可恢复吸能超材料及其制备方法，所述材料包括中空椭球面的蒙皮、蒙皮内部的吸能晶格和流体阻尼材料。蒙皮及吸能晶格一体化成形且均为通过增材制造的光固化复合材料，流体阻尼材料填充在蒙皮和晶格的间隙中，由阻尼分散相和阻尼介质组成；通过浇筑填充在晶格中且浇筑后固化密封浇筑口；蒙皮在冲击力作用下发生弹性形变；流体阻尼材料在冲击载荷的作用下发生可控形变并吸收能量，当冲击载荷消失后材料形状可恢复。所述制备方法包括：设计晶格结构的中空蒙皮数字模型；基于增材制造的数字模型一体化成形；制备流体阻尼材料并浇筑；固化密封浇筑口。所制备的材料在跨介质航行器防护方面有较好的应用潜力。
Multiphase composite recoverable energy-absorbing metamaterial and preparation method thereof
The invention belongs to the field of metamaterial preparation, and relates to a multiphase composite recoverable energy-absorbing metamaterial and a preparation method thereof, and the material comprises a hollow ellipsoid skin, an energy-absorbing lattice in the skin and a fluid damping material. The skin and the energy-absorbing crystal lattice are integrally formed and are both light-cured composite materials manufactured through additive manufacturing, gaps between the skin and the crystal lattice are filled with the fluid damping material, and the fluid damping material is composed of a damping dispersion phase and a damping medium; the pouring gate is filled in the crystal lattice through pouring and is solidified and sealed after pouring; the skin is elastically deformed under the action of impact force; the fluid damping material generates controllable deformation and absorbs energy under the action of the impact load, and the shape of the material can be recovered after the impact load disappears. The preparation method comprises the following steps: designing a hollow skin digital model of a lattice structure; carrying out integrated forming on a digital model based on additive manufacturing; a fluid damping material is prepared and poured; and curing and sealing the pouring gate. The prepared material has good application potential in the aspect of protection of cross-medium aircrafts.
本发明属于超材料制备领域，涉及一种多相复合可恢复吸能超材料及其制备方法，所述材料包括中空椭球面的蒙皮、蒙皮内部的吸能晶格和流体阻尼材料。蒙皮及吸能晶格一体化成形且均为通过增材制造的光固化复合材料，流体阻尼材料填充在蒙皮和晶格的间隙中，由阻尼分散相和阻尼介质组成；通过浇筑填充在晶格中且浇筑后固化密封浇筑口；蒙皮在冲击力作用下发生弹性形变；流体阻尼材料在冲击载荷的作用下发生可控形变并吸收能量，当冲击载荷消失后材料形状可恢复。所述制备方法包括：设计晶格结构的中空蒙皮数字模型；基于增材制造的数字模型一体化成形；制备流体阻尼材料并浇筑；固化密封浇筑口。所制备的材料在跨介质航行器防护方面有较好的应用潜力。
Multiphase composite recoverable energy-absorbing metamaterial and preparation method thereof
一种多相复合可恢复吸能超材料及其制备方法
JIN CHENG (Autor:in) / CHI BAIHONG (Autor:in) / LU KUAN (Autor:in) / WANG PENGFEI (Autor:in) / LI BINGYANG (Autor:in) / ZHANG YIBEI (Autor:in) / GENG XINYU (Autor:in) / LIU QI (Autor:in)
27.02.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
B64C
AEROPLANES
,
Flugzeuge
/
B29C
Formen oder Verbinden von Kunststoffen
,
SHAPING OR JOINING OF PLASTICS
/
B33Y
ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
,
Additive (generative) Fertigung, d. h. die Herstellung von dreidimensionalen [3D] Bauteilen durch additive Abscheidung, additive Agglomeration oder additive Schichtung, z. B. durch 3D- Drucken, Stereolithografie oder selektives Lasersintern
/
C04B
Kalk
,
LIME
/
C08K
Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe
,
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
/
C08L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
,
Massen auf Basis makromolekularer Verbindungen
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