A multi-scale prediction method for the strength of braided ceramic matrix composites
A technology of composite materials and prediction methods, applied in computer materials science, instrumentation, chemical data visualization, etc., can solve the problem of inability to analyze the microscopic failure process of woven ceramic matrix composite materials.
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[0049] Implementation Case: Strength Prediction of Plain Weave SiC / SiC Composites
[0050] Step 1: Obtain the mesoscopic geometric parameters of braided ceramic matrix composites
[0051] The following assumptions are made on the mesoscopic geometry of woven ceramic matrix composites: a) the warp yarn direction curve satisfies the form of trigonometric functions; b) the weft yarn direction is a straight line; c) the shape of the yarn interface is rectangular. Based on the above assumptions, by observing the three-view view of the mesoscopic geometric structure of the woven ceramic matrix composite, the mesoscopic geometric parameters of the woven ceramic matrix composite are obtained, including the amplitude and wavelength of the warp curve, the width of the yarn section, and the height of the warp section. Such as Figures 1a to 1c Shown are three views of the mesoscopic geometry of the plain-woven SiC / SiC composite. in accordance with Figures 1a to 1c The obtained mesosc...
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