ANSYS APDL-based concrete chlorine salt double-time-varying diffusion analysis method

The invention provides an ANSYSAPDL-based concrete chlorine salt double-time-varying diffusion analysis method. The method comprises the following steps: step S1, entering a thermal analysis module and setting a unit type; s2, a two-dimensional array is established according to the diffusion coefficient time-varying function relation, one column is a load step and serves as a material attribute number, the other column is a corresponding time-varying diffusion coefficient, and the time-varying diffusion coefficient is circularly defined according to the material attribute number; s3, circularly defining the time-varying surface chloride ion concentration of the concrete structural member as a time-varying boundary condition; s4, geometric model parameters and non-time-varying material attributes of the concrete structural member are set, and a geometric model is constructed; step S5, carrying out grid division; s6, setting an analysis type and a solving method; step S7, setting an initial chloride ion concent