Nolism: a PC program for the evaluation of parameters describing the non-linear dynamic behavior of soil materials

Abstract The program NOLISM utilizes well established equations that describe the behavior of soil materials under dynamic loading. The program, which is written in Visual Basic and operates in the Microsoft Windows environment, greatly facilitates the evaluation of parameters necessary for the description of cyclic soil behavior by either the equivalent-linear or the non-linear inelastic models. The program input includes the values of readily available soil parameters, whose values can be selected following the suggestions included in the paper, or the direct results of dynamic tests. The output of NOLISM includes screen graphics and printouts that facilitate the preparation of input for other commercially available programs of ground seismic response and can be directly incorporated into technical reports. The graphics capabilities of NOLISM make it a valuable educational tool for teaching important aspects of soil behavior under cyclic loading.

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