The correct choice of modes of technical operation of vehicles is based on considering the patterns of changes in the stress state of their structural elements. The paper develops and implements a method for assessing one of the stress state parameters, namely strain. To measure it, NI LabVIEW hardware and software were used. A methodology has been developed for studying the stress state in two main directions: on an experimental rig when measuring the actual stress state of a cantilever beam with strain gauges during its bending and during ANSYS simulating of the specified object. The optimal interaction between the ANSYS and SolidWorks simulating programs was found, which consists of preliminary modeling in SolidWorks and subsequent study of the model in the ANSYS program. The bending strain measurement results were compared with the corresponding ANSYS-simulating results. It was found that the discrepancy between the measurement and simulating results does not exceed 12.7% with a point load up to 49.05 N. The influence of finite element analysis (FEA) mesh type and size on the simulation accuracy was investigated. The tetrahedral mesh was justified though there are five other mesh types. It is shown that despite the lower initial accuracy of the correspondence between the measured and calculated strain values, the tetrahedral mesh allows adjusting the mesh size depending on the required accuracy of the calculated strain determination.