Verification of the open-source software Code_Aster for the tasks of simulating strain gauge force sensors.

This paper considers a test problem for verification of the open-source software Code_Aster for the tasks of simulating strain gauge force sensors. Due to complex geometry, strain gauge force sensors are simulated using Finite Element Analysis Software. For robust design and optimization of strain gauge force sensors, their stress-strain state has to be simulated with good accuracy. In this paper, stress-strain state of a number of typical elastic elements used to manufacture strain gauge force sensors was analyzed using Code_Aster and ANSYS as the reference software. The comparison of strains and stresses shows that nodal strains obtained from Code_Aster are in good agreement with those calculated using ANSYS, and the stress results show reasonable agreement. The simulation fidelity and the open-source license of Code_Aster make it a good tool for educational projects and course works devoted to design of strain gauge force sensors [ABSTRACT FROM AUTHOR]