Ceramic matrix composite mesoscopic modeling and mechanical calculation method based on structural grid
A technology of composite materials and calculation methods, which is applied in calculation, computer-aided design, design optimization/simulation, etc., can solve problems such as the inability to achieve high-throughput mesoscopic modeling of materials, reduce the time for modeling and calculation, and reduce the Difficulty, the effect of reducing people's dependence
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[0064] Implementation case: Mesoscopic modeling and stiffness calculation of plain weave SiC / SiC ceramic matrix composites based on structural mesh.
[0065] Step 1: Calculate the geometric parameters required for modeling
[0066] (1) Given independent geometric parameters, including warp direction wavelength LC=10mm, warp direction amplitude AC=0.24mm and warp cross-sectional width WC=1.74mm.
[0067] (2) Calculate all geometric parameters required for modeling
[0068] Assume that the yarn cross-section consists of two sinusoids of the same shape whose shape is determined by the sinusoidal wavelength λ c = LC = 10mm and amplitude A c = AC = 0.24mm, and the short axis distance L c = AC = 1.74mm decision. In addition, the required geometric parameters are the unit cell length L 1 =LC=10mm, unit cell width L 2 =2·WC=3.48mm, unit cell height H=2·AC=0.48mm.
[0069] Step 2: Divide the structural grid
[0070] Such as figure 1 As shown, in the three dimensions of length,...
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