A Method for Calculating the Equivalent Poisson's Ratio of a Concave Honeycomb Structure
A honeycomb structure and Poisson's ratio technology, applied in the field of honeycomb structure detection, can solve troublesome and difficult problems, and achieve the effect of simple calculation method and accurate calculation data
Active Publication Date: 2018-02-02
CHINA AIRPLANT STRENGTH RES INST
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[0003] The traditional calculation method of Poisson's ratio of honeycomb structure directly uses the beam bending theory to calculate the strain and then calculate the Poisson's ratio, which is cumbersome, and it is more difficult to use the above method when calculating the Poisson's ratio of a complex concave polygonal honeycomb structure
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[0052]In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention. Embodiments of the present invention will be described in detail be...
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The invention discloses a method for calculating the equivalent Poisson's ratio of a concave honeycomb structure. The method for calculating the equivalent Poisson's ratio of the concave honeycomb structure includes the following steps: calculating the deformation δ1 of the cell wall of the honeycomb to obtain the strain ε1 of the cell wall of the honeycomb, and obtaining the deformation δ2 of the cell wall of the honeycomb to obtain The step of the strain ε2 of the cell wall of the honeycomb, and then calculate the equivalent Poisson's ratio of the honeycomb structure through the above data and the Poisson's ratio formula. In the method for calculating the equivalent Poisson's ratio of the concave honeycomb structure of the present invention, the strain ε1 of the honeycomb cell wall is obtained by calculating the deformation δ1 of the cell wall of the honeycomb, and the strain ε1 of the cell wall of the honeycomb is obtained by calculating the deformation δ2 of the cell wall of the honeycomb to obtain the The strain ε2 of the cell wall is used to calculate the equivalent Poisson's ratio of the honeycomb structure through the Poisson's ratio formula. Compared with the prior art, the calculation method has the advantage of being simple, and the calculation data of the calculation method of the present invention is accurate.
Description
technical field [0001] The invention relates to the field of honeycomb structure detection, in particular to a method for calculating the equivalent Poisson's ratio of a concave honeycomb structure. Background technique [0002] In the prior art, the negative Poisson's ratio honeycomb structure is generally concave, and the Poisson's ratio can be adjusted to suit various situations by adjusting various geometric parameters of the section. is of great significance. [0003] The traditional calculation method of Poisson's ratio of honeycomb structure directly uses beam bending theory to calculate strain and then calculate Poisson's ratio, which is cumbersome, and it is more difficult to use the above method when calculating Poisson's ratio of complex concave polygonal honeycomb structure. [0004] Therefore, it is desirable to have a technical solution to overcome or at least alleviate at least one of the above-mentioned drawbacks of the prior art. Contents of the invention...
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IPC IPC(8): G06F19/00
Inventor 郭瑜超王立凯聂小华
Owner CHINA AIRPLANT STRENGTH RES INST