A method is used to determine the permeability of a hydraulic fracture. The method includes obtaining formation parameters and a plurality of formation samples, dividing the plurality of formation samples into a first group and a second group, measuring mechanical and hydraulic properties of the first group, soaking the second group in a fracturing fluid for a plurality of time periods, and measuring, after each soaking time period, the mechanical and hydraulic properties of the second group. The soaking the second group in the fracturing fluid includes soaking the second group in a plurality of different fracturing fluids. The method further includes building, using a computer processor, a proppant-rock interaction model based, at least in part, on the mechanical and hydraulic properties of the first group and the second group, and determining, using the computer processor, the permeability of a hydraulic fracture based, at least in part, on the proppant-rock interaction model and the formation parameters.