You can direct the solver to append selected results of an analysis to the results file at specified intervals during solution (OUTRES). The name of the results file depends on the analysis discipline:
Jobname.rst for a structural analysis and coupled-field analysis
Jobname.rth for a thermal and diffusion analyses
Jobname.rmg for a magnetic field analysis
For fluid analyses, the file extension is .rst or .rth, depending on whether structural degrees of freedom are present. (Using different file identifiers for different disciplines helps you in coupled-field analyses where the results from one analysis are used as loads for another. The Coupled-Field Analysis Guide presents a complete description of coupled-field analyses.)