FLUID-STRUCTURE INTERACTION RESPONSE CALCULATION METHOD FOR CERAMIC MATRIX COMPOSITES
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机译：陶瓷基复合材料的流体结构相互作用响应计算方法
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摘要
A fluid-structure interaction response calculation method for ceramic matrix composites (CMCs). Said method comprises: calculating, by means of a multi-scale method, a CMCs unit cell model loading and unloading stress-strain hysteresis curve; calculating an obtained loading and unloading hysteresis loop by means of a unit cell model, performing interpolation to obtain an arbitrary loading and unloading hysteresis loop response, and using same as a proxy model for flow-structure interaction solid domain dynamic calculation; and on a fluid-structure interaction interface, calculating a fluid load by means of CFD, writing a program to read the fluid load and mapping same to a solid junction, and reading the displacement of the solid junction and mapping same to the fluid junction, the fluid domain and the solid domain using the same time step. Said method implements the calculation of a fluid-structure interaction response for the CMCs, the variable stiffness and hysteresis behavior of the CMCs during loading and unloading are simply described and easy to implement, and the kinetic solution has good robustness, and does not easily diverge.
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