Simulation prediction method for mechanical behavior of fiber fabric reinforced ceramic-based composite material

The invention discloses a simulation prediction method for the mechanical behavior of a fiber fabric reinforced ceramic-based composite material. The method comprises the following steps: selecting a calculation unit from a structure formed by a fiber fabric reinforcing body and a ceramic matrix to be used as a modeling and calculation object; decomposing the calculation unit into two virtual materials by utilizing a component decomposition method; respectively setting material properties of the two virtual material; respectively performing geometric modeling and grid partitioning on the two virtual materials to obtain two sub-models; connecting the two sub-models by adopting the constraint of multiple nodes of the unit to form a calculation unit model; and setting a boundary condition and a load, and calculating mechanical properties of the calculation unit model. By adopting the simulation prediction method for the mechanical behavior of the fiber fabric reinforced ceramic-based composite material, whole-co